Wi-Fi Mesh Networking: IEEE s

Size: px
Start display at page:

Download "Wi-Fi Mesh Networking: IEEE s"

Transcription

1 Wi-Fi Mesh Networking: IEEE s Piotr Mitoraj Tampere University of Technology Department of Communications Engineering November 3, 2009 Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 1/35

2 Outline 1 Mesh Networking Introduction Theoretical Background 2 Standardization Efforts IEEE s Fundamentals MAC Layer Routing 3 tutmesh - mesh network testbed at TUT Overview Hardware & software Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 2/35

3 Outline 1 Mesh Networking Introduction Theoretical Background 2 Standardization Efforts IEEE s Fundamentals MAC Layer Routing 3 tutmesh - mesh network testbed at TUT Overview Hardware & software Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 3/35

4 Mesh networking Wired networks - full mesh topology All to all connections knotted material of open texture with evenly spaced holes Merriam-Webster dictionary In wireless networking mesh is a wireless backbone Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 4/35

5 IEEE reminder Basic Service Set (BSS) Independent Basic Service Set (IBSS) Extended Service Set (ESS) Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 5/35

6 Outline 1 Mesh Networking Introduction Theoretical Background 2 Standardization Efforts IEEE s Fundamentals MAC Layer Routing 3 tutmesh - mesh network testbed at TUT Overview Hardware & software Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 6/35

7 Wireless Mesh Networks Main Features Self-organizing backbone Overlapping coverage Lack of wired distribution system Freedom in selecting the node location ad-hoc networks mesh networks cellular networks ESS networks Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 7/35

8 Exteneded Service Set WIRED DISTRIBUTION SYSTEM AP AP AP Radio Link AP Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 8/35

9 Mesh Extended Service Set WIRED DISTRIBUTION SYSTEM MPP MAP MP MPP Radio Link Mesh Radio Link Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 9/35

10 Advantages Fast deployment Low cost Removes dead spots Very scalable Easy network maintenance Robust etc... Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 10/35

11 Outline 1 Mesh Networking Introduction Theoretical Background 2 Standardization Efforts IEEE s Fundamentals MAC Layer Routing 3 tutmesh - mesh network testbed at TUT Overview Hardware & software Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 11/35

12 Motivation Many companies were developing proprietary mesh solutions independently Lack of interoperability between vendors Nortel, MITRE, Philips, Thomson, etc. (Wi-mesh) Intel, Motorola, Nokia (SEEMesh Simple Efficient Extensible) BelAir Networks, Tropos Networks, Strix Systems (outsiders) IEEE s Task Group formed in July 2004 Joint proposal contributed to the first draft (1.0) of the standard Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 12/35

13 New network entities Mesh Point (MP) implements the basic functionality of path selection and forwarding the traffic of other MPs. It might be used to interconnect two remote parts of the mesh cluster. Mesh Access Point (MAP) Same functionality as bare MP. Additionally, it serves as a legacy AP for the nodes. In simpler terms, it is an MP collocated with AP. Mesh Portal (MPP) Same functionality as bare MP. Moreover, it is a gateway to the external network, e.g. Ethernet or WiMax. It is an MP collocated with a gateway. Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 13/35

14 Usage Scenarios Residential/Consumer Electronics Office single building or flat audio and video streaming eliminate the dead spots and low quality areas cabling not feasible scalability cost reduction Campus/Community/Public Access Network wider coverage lower cost and higher bandwidth fast deployment and scalability Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 14/35

15 Usage scenarios Public Safety Military emergency response: such as fire, police and emergency workers at the accident scene video surveillance, voice communication, collection of the data from sensors non-combat and combat extreme mode mobility fully automated network management power preservation schemes for detached nodes Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 15/35

16 IEEE s Routing Hybrid Wireless Mesh Protocol (HWMP) First standard to define layer 2 routing Medium Access techniques Enhanced Distributed Channel Access (EDCA) mandatory Mesh Deterministic Access (MDA) introduces novel medium access method optional Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 16/35

17 Open source implementation Present in the Linux Kernel since Supported wireless drivers: ath5k, b43, libertas_tf, p54, zd1211rw Sponsors: Nortel, cozybit, olpc, google, Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 17/35

18 Outline 1 Mesh Networking Introduction Theoretical Background 2 Standardization Efforts IEEE s Fundamentals MAC Layer Routing 3 tutmesh - mesh network testbed at TUT Overview Hardware & software Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 18/35

19 EDCA drawbacks in multihop environmnent Designed for single hop wireless networks Dense deployment of MPs leads to large amount of exposed terminals No means to prioritize backbone traffic over locally generated traffic Unaware station problem Ongoing transmission between A and B blocks node C being close to B. Node D placed outside A s Energy Detection (ED) range is an unaware station. It may try several retransmissions to not responding C node Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 19/35

20 MDA Currently does not include any multi-hop scheme allowing two stations outside mutual radio range to communicate Separates a negotiation process and medium reservation More awareness of the difficult radio environment Mitigates unaware station problem MP exchange the information about: Their own Tx and Rx transmission periods (MDAOP) Their neighbors Tx and Rx transmission periods, interference reports Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 20/35

21 Outline 1 Mesh Networking Introduction Theoretical Background 2 Standardization Efforts IEEE s Fundamentals MAC Layer Routing 3 tutmesh - mesh network testbed at TUT Overview Hardware & software Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 21/35

22 Network layer routing Host A Application Layer 3 routing Host B Application Presentation Frame Forwarding Presentation Session Session Transport Mesh Router Mesh Router Transport Network Network Network Network Network Network Data Link Data Link Data Link Data Link Data Link Data Link Physical Physical Physical Physical Physical Physical Hop #1 Hop #2 Hop #3 Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 22/35

23 IEEE s ESS Host A Application Layer 2 routing Host B Application Presentation Path Selection Presentation Session Session Transport Transport Network Mesh Router Mesh Router Network Data Link Data Link Data Link Data Link Data Link Data Link Physical Physical Physical Physical Physical Physical Hop #1 Hop #2 Hop #3 Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 23/35

24 HWMP overview Routing protocol must be aware of rapidly changing radio environment Combines on-demand routing with proactive tree-based approach, not exclusive The protocol specifies four information elements: 1 PREQ Path Request Contains cumulative metric and destination address 2 PREP Path Reply 3 PERR Path Error 4 RANN Root Announcement Sequence numbers in use Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 24/35

25 HWMP Proactive tree building mode 1 Utilizing PREQ One node acts as a tree root Root node sends proactively PREQs Formation of paths between root and all other nodes 2 Utilizing RANN Root node periodically broadcasts RANNs Each node creates or updates the path to the root Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 25/35

26 HWMP Reactive path selection mode 1 Node A needs to discover a path to the destination 2 Node A broadcasts PREQ 3 The recipients process the PREQ based on two flags: Destination Only (DO) Reply and Forward (RF) DO=1 (default) Only the destination node is eligible to response with PREP, RF flag has no influence, All intermediate nodes learn the path to the destination DO=0 and RF=0 Intermediate node that knows the path to the destiantion may respond with unicast PREP, Reduction of the path selection delay Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 26/35

27 HWMP Reactive path selection mode DO=0 and RF=1 The same behaviour as in the previous case, but PREQ is being forwarded, Intermediate node sets DO=1 Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 27/35

28 Outline 1 Mesh Networking Introduction Theoretical Background 2 Standardization Efforts IEEE s Fundamentals MAC Layer Routing 3 tutmesh - mesh network testbed at TUT Overview Hardware & software Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 28/35

29 Motivation To deploy Wireless Mesh Network testbed IEEE Free (open source) software Embedded platform Dual-radio Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 29/35

30 Testbed topology Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 30/35

31 Outline 1 Mesh Networking Introduction Theoretical Background 2 Standardization Efforts IEEE s Fundamentals MAC Layer Routing 3 tutmesh - mesh network testbed at TUT Overview Hardware & software Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 31/35

32 Mesh Router Compact Flash Card (min 64MB) enclosure Ethernet port Alix3c1 board - PC Engines 2 Compex MiniPCI b/g wireless cards 1GB Compact Flash (CF) card 2 5dBi omni-directional antennas minipci atheros based b/g card ALIX3c1 System Board minipci atheros based b/g card Serial port DC jack omnidirectional antenna omnidirectional antenna AC adapter (18V / 15W) Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 32/35

33 Mesh Router platform PCengine s Alix3c1 CPU 433 MHz AMD Geode LX700 DRAM 128 MB DDR DRAM Storage Compact Flash socket Power DC jack Expansion 2 minipci slots, LPC bus Connectivity 1 Ethernet channel I/O DB9 serial port Board size 100 x 160 mm Firmware tinybios Power consumption W (peak 5 W) Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 33/35

34 Software selection Operating System - Debian-based linux Wireless Drivers - MadWiFi dnsmasq - DHCP daemon iptables - Masquerade on the gateway node olsrd - Ad-hoc routing daemon GRUB - GRand Unified Bootloader Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 34/35

35 That s all THANK YOU Piotr Mitoraj / MUW2NET / TUT TLT-2756: Mesh Networking IEEE s 35/35

IEEE s ESS Mesh Networking

IEEE s ESS Mesh Networking IEEE 802.11s ESS Mesh Networking Prof. Young-Bae Ko (youngko@ajou.ac.kr) Ubiquitous Networked Systems (UbiNeS) Lab (http://uns.ajou.ac.kr) KRnet 2006 Contents Introduction - Wireless Mesh Networks IEEE

More information

Notes on implementing a IEEE s Mesh Point

Notes on implementing a IEEE s Mesh Point Fourth EuroFGI Workshop on Wireless and Mobility Notes on implementing a IEEE 802.11s Mesh Point R. G. Garroppo, S. Giordano, D. Iacono, L. Tavanti Telecommunication Networks Research Group Dip. Ingegneria

More information

Comparison of proposed path selection protocols for IEEE s WLAN mesh networks

Comparison of proposed path selection protocols for IEEE s WLAN mesh networks Comparison of proposed path selection protocols for IEEE 802.11s WLAN mesh networks Sana Ghannay, Sonia Mettali Gammar and Farouk Kamoun CRISTAL lab, National School of Computer Sciences, ENSI, 2010, Manouba

More information

Mesh Network. Kiran Mathews Seminar: Verteilte und vernetzte Systeme

Mesh Network. Kiran Mathews Seminar: Verteilte und vernetzte Systeme Mesh Network Kiran Mathews (kmathews@rhrk.uni-kl.de) Seminar: Verteilte und vernetzte Systeme February 8, 2016 Outline 1 Why Mesh Networks? Existing System imesh 2 Architectural Overview Frame Structure

More information

Mobile Communications. Ad-hoc and Mesh Networks

Mobile Communications. Ad-hoc and Mesh Networks Ad-hoc+mesh-net 1 Mobile Communications Ad-hoc and Mesh Networks Manuel P. Ricardo Faculdade de Engenharia da Universidade do Porto Ad-hoc+mesh-net 2 What is an ad-hoc network? What are differences between

More information

IEEE s Multihop MAC. Mateusz Wielgosz

IEEE s Multihop MAC. Mateusz Wielgosz IEEE 802.11s Multihop MAC Mateusz Wielgosz Outline Introduction MANET and challenges Routing and metrics 802.11s group Network architecture Mesh Creation Internetworking Path Selection Frames Conclusions

More information

Part I. Wireless Communication

Part I. Wireless Communication 1 Part I. Wireless Communication 1.5 Topologies of cellular and ad-hoc networks 2 Introduction Cellular telephony has forever changed the way people communicate with one another. Cellular networks enable

More information

Chapter 3.1 Acknowledgment:

Chapter 3.1 Acknowledgment: Chapter 3.1 Acknowledgment: This material is based on the slides formatted by Dr Sunilkumar S. manvi and Dr Mahabaleshwar S. Kakkasageri, the authors of the textbook: Wireless and Mobile Networks, concepts

More information

Wireless Ad-Hoc Networks

Wireless Ad-Hoc Networks Wireless Ad-Hoc Networks Dr. Hwee-Pink Tan http://www.cs.tcd.ie/hweepink.tan Outline Part 1 Motivation Wireless Ad hoc networks Comparison with infrastructured networks Benefits Evolution Topologies Types

More information

M a/b/g Outdoor Layer-2 MESH AP

M a/b/g Outdoor Layer-2 MESH AP 802.11a/b/g Outdoor Layer-2 MESH AP 2.4GHz / 5GHz 802.11 a/b/g MESH PRODUCT DESCRIPTION EnGenius Mesh AP is designed with IEEE802.11a/b/g standards and addressed on providing high performance mesh network.

More information

Grandstream Networks, Inc. GWN76XX Series Mesh Network Guide

Grandstream Networks, Inc. GWN76XX Series Mesh Network Guide Grandstream Networks, Inc. GWN76XX Series Mesh Network Guide Table of Content SUPPORTED DEVICES... 4 INTRODUCTION... 5 MESH NETWORK ARCHITECTURE... 6 Terminology... 6 Mesh Network Architecture Models...

More information

Real-Time and Low-Power Wireless Communication with Sensors and Actuators

Real-Time and Low-Power Wireless Communication with Sensors and Actuators THE KNOWLEDGE FOUNDATION S SENSORS GLOBAL SUMMIT 2015 November 10-11, 2015 San Diego Marriott La Jolla La Jolla, CA Real-Time and Low-Power Wireless Communication with Sensors and Actuators Behnam Dezfouli

More information

Enhanced Topolgoy Formation Protocol for IEEE WLAN based Mesh Networks*

Enhanced Topolgoy Formation Protocol for IEEE WLAN based Mesh Networks* Enhanced Topolgoy Formation Protocol for IEEE 802.11 WLAN based Mesh Networks* Deepesh Man Shrestha Graduate School of Information and Communication Ajou University, Suwon, Republic of Korea deepesh@ajou.ac.kr

More information

Insights into Home WiFi Systems

Insights into Home WiFi Systems Insights into Home WiFi Systems Agenda Home WiFi Requirements 03 WiFi @ Home today 04 WiFi repeaters/extenders 05 Overview on WDS 06 IEEE 802.11s/Wireless Mesh 10 Multiple APs - Technical Challenge 15

More information

Final Report. Nuno José Pereira Farias Rodrigues. Orientadores: Prof. Manuel Ricardo Pedro Fortuna

Final Report. Nuno José Pereira Farias Rodrigues. Orientadores: Prof. Manuel Ricardo Pedro Fortuna Final Report Nuno José Pereira Farias Rodrigues Orientadores: Prof. Manuel Ricardo Pedro Fortuna Mestrado Integrado em Engenharia Electrotécnica e de Computadores Faculdade de Engenharia da Universidade

More information

MMC543AHVN2-26. Wireless Indoor Access Point. Atheros XR extended Range technology. MIPS 24K-family 680MHz network processor

MMC543AHVN2-26. Wireless Indoor Access Point. Atheros XR extended Range technology. MIPS 24K-family 680MHz network processor product datasheet MMC543AHVN2-26 Wireless Indoor Access Point Features Atheros XR extended Range technology MIPS 24K-family 680MHz network processor IEEE 802.11n compliant and backward compatible with

More information

Introduction. High Speed LANs. Emergence of High-Speed LANs. Characteristics of High Speed LANS. Text ch. 6, High-Speed Networks and

Introduction. High Speed LANs. Emergence of High-Speed LANs. Characteristics of High Speed LANS. Text ch. 6, High-Speed Networks and High Speed LANs 3BA33 David Lewis 2 nd Semester 2006-07 3BA33 D.Lewis 2007 1 Characteristics of High Speed LANS 3BA33 D.Lewis 2007 3 Introduction Fast Ethernet and Gigabit Ethernet Fibre Channel High-speed

More information

Mesh Networks. Abdus Salam ICTP, July 2006 Project-oriented Advanced Training on Wireless Networking

Mesh Networks. Abdus Salam ICTP, July 2006 Project-oriented Advanced Training on Wireless Networking Mesh Networks Abdus Salam ICTP, July 2006 Projectoriented Advanced Training on Wireless Networking Ermanno Escuela Latinoamericana de Redes (Latin American Networking School) www.eslared.org.ve 1 Outline

More information

IEEE s Wireless Mesh Networks: Challenges and Perspectives

IEEE s Wireless Mesh Networks: Challenges and Perspectives IEEE 802.11s Wireless Mesh Networks: Challenges and Perspectives Aggeliki Sgora 1, Dimitris D. Vergados 1,2, and Periklis Chatzimisios 3 1 University of the Aegean Department of Information and Communication

More information

802.11n in the Outdoor Environment

802.11n in the Outdoor Environment POSITION PAPER 802.11n in the Outdoor Environment How Motorola is transforming outdoor mesh networks to leverage full n advantages Municipalities and large enterprise customers are deploying mesh networks

More information

NEW METRIC FOR HWMP PROTOCOL (NMH)

NEW METRIC FOR HWMP PROTOCOL (NMH) NEW METRIC FOR HWMP PROTOCOL (NMH) Sidi Ould Cheikh, Malik Mubashir Hassan and Abdelhak Geuroui PRiSM Laboratory, University of Versailles, Versailles, France sidi.ould-cheikh@prism.uvsq.fr, malik.hassan@prism.uvsq.fr,

More information

Wireless networks. Wireless Network Taxonomy

Wireless networks. Wireless Network Taxonomy Wireless networks two components to be considered in deploying applications and protocols wireless links ; mobile computing they are NOT the same thing! wireless vs. wired links lower bandwidth; higher

More information

Ad Hoc Networks: Introduction

Ad Hoc Networks: Introduction Ad Hoc Networks: Introduction Module A.int.1 Dr.M.Y.Wu@CSE Shanghai Jiaotong University Shanghai, China Dr.W.Shu@ECE University of New Mexico Albuquerque, NM, USA 1 Ad Hoc networks: introduction A.int.1-2

More information

Subject: Adhoc Networks

Subject: Adhoc Networks ISSUES IN AD HOC WIRELESS NETWORKS The major issues that affect the design, deployment, & performance of an ad hoc wireless network system are: Medium Access Scheme. Transport Layer Protocol. Routing.

More information

Introduction to Mobile Ad hoc Networks (MANETs)

Introduction to Mobile Ad hoc Networks (MANETs) Introduction to Mobile Ad hoc Networks (MANETs) 1 Overview of Ad hoc Network Communication between various devices makes it possible to provide unique and innovative services. Although this inter-device

More information

CSC344 Wireless and Mobile Computing. Department of Computer Science COMSATS Institute of Information Technology

CSC344 Wireless and Mobile Computing. Department of Computer Science COMSATS Institute of Information Technology CSC344 Wireless and Mobile Computing Department of Computer Science COMSATS Institute of Information Technology Wireless Local Area Networks (WLANs) Part II WiFi vs 802.11 IEEE 802.11 Features Hidden Node

More information

Evaluating the Effect of Path Diversity over QoS and QoE in a High Speed Indoor Mesh Backbone

Evaluating the Effect of Path Diversity over QoS and QoE in a High Speed Indoor Mesh Backbone Evaluating the Effect of Path Diversity over QoS and QoE in a High Speed Indoor Mesh Backbone Sandip Chakraborty 12, Sukumar Nandi Department of Computer Science and Engineering Indian Institute of Technology

More information

Chapter 5 Ad Hoc Wireless Network. Jang Ping Sheu

Chapter 5 Ad Hoc Wireless Network. Jang Ping Sheu Chapter 5 Ad Hoc Wireless Network Jang Ping Sheu Introduction Ad Hoc Network is a multi-hop relaying network ALOHAnet developed in 1970 Ethernet developed in 1980 In 1994, Bluetooth proposed by Ericsson

More information

Kapitel 5: Mobile Ad Hoc Networks. Characteristics. Applications of Ad Hoc Networks. Wireless Communication. Wireless communication networks types

Kapitel 5: Mobile Ad Hoc Networks. Characteristics. Applications of Ad Hoc Networks. Wireless Communication. Wireless communication networks types Kapitel 5: Mobile Ad Hoc Networks Mobilkommunikation 2 WS 08/09 Wireless Communication Wireless communication networks types Infrastructure-based networks Infrastructureless networks Ad hoc networks Prof.

More information

Auranet EAP Solution 2

Auranet EAP Solution 2 Auranet EAP Solution 2 EAP Indoor Wi-Fi Solution for Medium-Sized and Single-Subnet Networks Tom.Wu 2017-1-24 Contents Background... 2 Application Scenarios... 2 Why TP-Link?... 2 Solution... 2 A. Solution

More information

WAP-A58. Outdoor Multi function Access Point CPE Router. with built-in high power 5.8GHz a Radio (Integrated 16dBi patch Antenna).

WAP-A58. Outdoor Multi function Access Point CPE Router. with built-in high power 5.8GHz a Radio (Integrated 16dBi patch Antenna). WAP-A58 Wireless Outdoor Multi function Access Point CPE Router with built-in high power 5.8GHz 802.11a Radio (Integrated 16dBi patch Antenna). Benefits Access Point with built-in high power 802.11a Radio.

More information

Overview : Computer Networking. Spectrum Use Comments. Spectrum Allocation in US Link layer challenges and WiFi WiFi

Overview : Computer Networking. Spectrum Use Comments. Spectrum Allocation in US Link layer challenges and WiFi WiFi Overview 15-441 15-441: Computer Networking 15-641 Lecture 21: Wireless Justine Sherry Peter Steenkiste Fall 2017 www.cs.cmu.edu/~prs/15-441-f17 Link layer challenges and WiFi WiFi Basic WiFi design Some

More information

Practical MU-MIMO User Selection on ac Commodity Networks

Practical MU-MIMO User Selection on ac Commodity Networks Practical MU-MIMO User Selection on 802.11ac Commodity Networks Sanjib Sur Ioannis Pefkianakis, Xinyu Zhang and Kyu-Han Kim From Legacy to Gbps Wi-Fi 1999-2003 2009 What is new in 802.11ac? 2013 Legacy

More information

Outline. Overview of ad hoc wireless networks (I) Overview of ad hoc wireless networks (II) Paper presentation Ultra-Portable Devices.

Outline. Overview of ad hoc wireless networks (I) Overview of ad hoc wireless networks (II) Paper presentation Ultra-Portable Devices. Paper presentation Ultra-Portable Devices Paper: Design Challenges for Energy-Constrained Ad Hoc Wireless Networks Andrea J. Goldsmith, Stephen B. Wicker IEEE Wireless Communication August 2002, pages

More information

Ad Hoc Networks: Issues and Routing

Ad Hoc Networks: Issues and Routing Ad Hoc Networks: Issues and Routing Raj Jain Washington University in Saint Louis Saint Louis, MO 63130 Jain@cse.wustl.edu Audio/Video recordings of this lecture are available at: http://www.cse.wustl.edu/~jain/cse574-08/

More information

Content. 1. Introduction. 2. The Ad-hoc On-Demand Distance Vector Algorithm. 3. Simulation and Results. 4. Future Work. 5.

Content. 1. Introduction. 2. The Ad-hoc On-Demand Distance Vector Algorithm. 3. Simulation and Results. 4. Future Work. 5. Rahem Abri Content 1. Introduction 2. The Ad-hoc On-Demand Distance Vector Algorithm Path Discovery Reverse Path Setup Forward Path Setup Route Table Management Path Management Local Connectivity Management

More information

Mobile Ad Hoc Networks: Basic Concepts and Research Issues

Mobile Ad Hoc Networks: Basic Concepts and Research Issues Mobile Ad Hoc s: Basic Concepts and Research Issues Ing. Alessandro Leonardi aleonardi@dieei.unict.it Wireless s Generations (1/3) Generation 1G 2G 2.5G 3G 4/5G Time 1980s 1990s Late1990s 2000s (2010 full

More information

Inovatian Mesh Technology. InoMesh Specifications & System Performance Sheet

Inovatian Mesh Technology. InoMesh Specifications & System Performance Sheet Inovatian Mesh Technology InoMesh Specifications & System Performance Sheet Inovatian had developed in house a unique mesh technology: The InoMesh which is a substantial improvement over OpenWRT mesh with

More information

WIRELESS ACCESS POINTS.

WIRELESS ACCESS POINTS. Indoor & Outdoor WIRELESS ACCESS POINTS. 11ac 11n Revision 3a SG / October 2015 Edition INDOOR AP QuickLINX MZ SERIES QL-MZ558 Wireless N450 + AC1300 High Speed Multi-Function Dual Concurrent AP Next-gen

More information

2. LITERATURE REVIEW. Performance Evaluation of Ad Hoc Networking Protocol with QoS (Quality of Service)

2. LITERATURE REVIEW. Performance Evaluation of Ad Hoc Networking Protocol with QoS (Quality of Service) 2. LITERATURE REVIEW I have surveyed many of the papers for the current work carried out by most of the researchers. The abstract, methodology, parameters focused for performance evaluation of Ad-hoc routing

More information

WSN Routing Protocols

WSN Routing Protocols WSN Routing Protocols 1 Routing Challenges and Design Issues in WSNs 2 Overview The design of routing protocols in WSNs is influenced by many challenging factors. These factors must be overcome before

More information

INESC Porto, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 378, Porto, Portugal UNCORRECTED PROOFS

INESC Porto, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 378, Porto, Portugal UNCORRECTED PROOFS WIRELESS COMMUNICATIONS AND MOBILE COMPUTING Wirel. Commun. Mob. Comput. 2009; 9:1 23 Published online XX Month Year in Wiley InterScience (www.interscience.wiley.com). RESEARCH ARTICLE Network infrastructure

More information

04/11/2011. Wireless LANs. CSE 3213 Fall November Overview

04/11/2011. Wireless LANs. CSE 3213 Fall November Overview Wireless LANs CSE 3213 Fall 2011 4 November 2011 Overview 2 1 Infrastructure Wireless LAN 3 Applications of Wireless LANs Key application areas: LAN extension cross-building interconnect nomadic access

More information

How to develop and validate a scalable mesh routing solution for IEEE sensor networks Altran Benelux

How to develop and validate a scalable mesh routing solution for IEEE sensor networks Altran Benelux How to develop and validate a scalable mesh routing solution for IEEE 802.15.4 sensor networks Altran Benelux Leuven, 29 October 2015 Daniele Lacamera picotcp The reference

More information

Announcements / Wireless Networks and Applications Lecture 9: Wireless LANs Wireless. Regular Ethernet CSMA/CD.

Announcements / Wireless Networks and Applications Lecture 9: Wireless LANs Wireless. Regular Ethernet CSMA/CD. Announcements 18-452/18-750 Wireless Networks and Applications Lecture 9: Wireless LANs 802.11 Wireless Peter Steenkiste Homework 1 should be out by tomorrow Project 1 by Friday Schedule:» Thursday lecture

More information

Mesh Networking Principles

Mesh Networking Principles Technology, N. Jones Research Note 8 July 2003 Mesh Topologies Promise Resilient Wireless Networks Mesh architecture will become an essential element of wireless networking because it is easy to install,

More information

WLAN Mesh Architectures and IEEE s

WLAN Mesh Architectures and IEEE s WLAN Architectures and IEEE 802.11s Abstract WLAN mesh networks using 802.11 Access Points (APs) to relay traffic among each other to increase the RF coverage of the networks are becoming very popular

More information

Principles of Wireless Sensor Networks

Principles of Wireless Sensor Networks Principles of Wireless Sensor Networks https://www.kth.se/social/course/el2745/ Lecture 6 Routing Carlo Fischione Associate Professor of Sensor Networks e-mail:carlofi@kth.se http://www.ee.kth.se/ carlofi/

More information

Wireless AC1200 Dual-Band Unified Access Point

Wireless AC1200 Dual-Band Unified Access Point Product Highlights Next Generation Connectivity Harness the power of Wireless AC and take advantage of combined wireless speeds of up to 1200 Mbps, perfect for high demand business applications Enhanced

More information

CHAPTER 2 WIRELESS SENSOR NETWORKS AND NEED OF TOPOLOGY CONTROL

CHAPTER 2 WIRELESS SENSOR NETWORKS AND NEED OF TOPOLOGY CONTROL WIRELESS SENSOR NETWORKS AND NEED OF TOPOLOGY CONTROL 2.1 Topology Control in Wireless Sensor Networks Network topology control is about management of network topology to support network-wide requirement.

More information

Simulation & Performance Analysis of Mobile Ad-Hoc Network Routing Protocol

Simulation & Performance Analysis of Mobile Ad-Hoc Network Routing Protocol Simulation & Performance Analysis of Mobile Ad-Hoc Network Routing Protocol V.S.Chaudhari 1, Prof.P.N.Matte 2, Prof. V.P.Bhope 3 Department of E&TC, Raisoni College of Engineering, Ahmednagar Abstract:-

More information

DATASHEET Pepwave Mesh Connector

DATASHEET Pepwave Mesh Connector Features Vendor Neutral Repeater, Interoperability Certified The allows you to seamlessly extend the coverage of an existing Wi-Fi network, without messy configurations or having to run cables! Simply

More information

GENI Experimental Infrastructure Wireless & Sensor Networks Aug 8, 2005

GENI Experimental Infrastructure Wireless & Sensor Networks Aug 8, 2005 GENI Experimental Infrastructure Wireless & Sensor Networks Aug 8, 2005 Rutgers, The State University of New Jersey D. Raychaudhuri ray@winlab.rutgers.edu www.winlab.rutgers.edu 1 GENI Wireless Network

More information

JetWave 2810/2820/2830-H/M

JetWave 2810/2820/2830-H/M JetWave 2810/2820/2830-H/M Outdoor Multi-RF 802.11 a/b/g/n AP(-H) / MESH AP(-M) Strong TX output power extends distance and coverage High RX sensitivity enhances receiving signal quality 2x2 MIMO doubles

More information

Intelligent Transportation Systems. Medium Access Control. Prof. Dr. Thomas Strang

Intelligent Transportation Systems. Medium Access Control. Prof. Dr. Thomas Strang Intelligent Transportation Systems Medium Access Control Prof. Dr. Thomas Strang Recap: Wireless Interconnections Networking types + Scalability + Range Delay Individuality Broadcast o Scalability o Range

More information

Ad Hoc Routing Protocols and Issues

Ad Hoc Routing Protocols and Issues Ad Hoc Routing Protocols and Issues Stefano Basagni ECE Dept Northeastern University Boston, Jan 2003 Ad hoc (AD-HAHK or AD-HOKE)-Adjective a) Concerned with a particular end or purpose, and b) formed

More information

Wireless Sensor Networks CS742

Wireless Sensor Networks CS742 Wireless Sensor Networks CS742 Outline Overview Environment Monitoring Medical application Data-dissemination schemes Media access control schemes Distributed algorithms for collaborative processing Architecture

More information

Introduction to WiFi Networking. Training materials for wireless trainers

Introduction to WiFi Networking. Training materials for wireless trainers Introduction to WiFi Networking Training materials for wireless trainers Goals The goal of this lecture is to introduce 802.11 family of radio protocols 802.11 radio channels wireless network topologies

More information

ITRAINONLINE MMTK BASIC WIRELESS INFRASTRUCTURE AND TOPOLOGIES HANDOUT

ITRAINONLINE MMTK BASIC WIRELESS INFRASTRUCTURE AND TOPOLOGIES HANDOUT ITRAINONLINE MMTK BASIC WIRELESS INFRASTRUCTURE AND TOPOLOGIES HANDOUT Developed by: Sebastian Buettrich, wire.less.dk Alberto Escudero Pascual, IT +46 Table of Contents 1. About this document...1 1.1

More information

802.11ac 3x3 Dual Band High-Powered Wireless Access Point/Client Bridge

802.11ac 3x3 Dual Band High-Powered Wireless Access Point/Client Bridge Datasheet ECB1750 802.11ac 3x3 Dual Band High-Powered Wireless Access Point/Client Bridge The ECB1750 marks a new speed and performance breakthrough for users with 802.11ac laptops and other devices, who

More information

802.11n SOHO Router NSR GHz 300Mbps AP/ Router

802.11n SOHO Router NSR GHz 300Mbps AP/ Router 802.11n SOHO Router NSR-9710 2.4GHz 300Mbps AP/ Router The Senao Networks Wireless-N Gigabit Router (NSR-9710) is a draft 802.11n compliant device that delivers up to 6x faster speeds than 802.11g while

More information

WZRDnet. A Low-Power Wireless Ad-Hoc Mesh Network for Austere Tactical Environments. February 14, 2018

WZRDnet. A Low-Power Wireless Ad-Hoc Mesh Network for Austere Tactical Environments. February 14, 2018 White Paper TELEGRID Technologies, Inc. WZRDnet A Low-Power Wireless Ad-Hoc Mesh Network for Austere Tactical Environments February 14, 2018 23 Vreeland Road Suite 290 Florham Park, NJ 07932 www.telegrid.com

More information

Adaptive Routing Protocol for Multip Wireless Mesh Networks.

Adaptive Routing Protocol for Multip Wireless Mesh Networks. JAIST Reposi https://dspace.j Title Adaptive Routing Protocol for Multip Wireless Mesh Networks Author(s) 陳, 鑽 Citation Issue Date 2013-06 Type Thesis or Dissertation Text version author URL http://hdl.handle.net/10119/11399

More information

Ruckus MediaFlex 2811 Wi-Fi 1-Port b/g Wireless Multimedia Router

Ruckus MediaFlex 2811 Wi-Fi 1-Port b/g Wireless Multimedia Router Product Name: Manufacturer: - Model Number: 901-2811-UK01 (901-2811-UK01) 802.11g Multimedia Smart Wi-Fi Router and Adapter offers The First Managed Smart Wi-Fi 802.11g System for Picture-Perfect Distribution

More information

Performance Analysis of Proposed Congestion Avoiding Protocol for IEEE s

Performance Analysis of Proposed Congestion Avoiding Protocol for IEEE s Performance Analysis of Proposed Congestion Avoiding Protocol for IEEE 802.11s Kishwer Abdul Khaliq 1 Department of Production Engineering, IGS, Universität Bremen, Germany Amir Qayyum 1 CoReNeT, Capital

More information

Cisco WAP131 Wireless-N Dual Radio Access Point with PoE

Cisco WAP131 Wireless-N Dual Radio Access Point with PoE Data Sheet Cisco WAP131 Wireless-N Dual Radio Access Point with PoE Improved Coverage, Easy to Deploy, Secure Business-Class Wireless-N Connectivity Highlights Provides cost-effective 802.11n connectivity

More information

Learning Objectives. Introduction. Advantages of WLAN. Information Technology. Mobile Computing. Module: Wireless Local Area Network: IEEE 802.

Learning Objectives. Introduction. Advantages of WLAN. Information Technology. Mobile Computing. Module: Wireless Local Area Network: IEEE 802. Information Technology Mobile Computing Module: Wireless Local Area Network: IEEE 802.11 Learning Objectives Introduction to Wireless Local Area Network Advantages of WLAN Types of WLAN IEEE 802.11 standards

More information

BIGAP. Seamless Handover in High Performance Enterprise IEEE Networks. Anatolij Zubow, S. Zehl, A. Wolisz Technical University Berlin, Germany

BIGAP. Seamless Handover in High Performance Enterprise IEEE Networks. Anatolij Zubow, S. Zehl, A. Wolisz Technical University Berlin, Germany BIGAP Seamless Handover in High Performance Enterprise IEEE 802.11 Networks Anatolij Zubow, S. Zehl, A. Wolisz Technical University Berlin, Germany Outline Motivation, System Model, Applications, Design

More information

F4W Fact Sheet. Overview: F4W provides: Products: Technology: Visit for details.

F4W Fact Sheet. Overview: F4W provides: Products: Technology: Visit  for details. F4W Fact Sheet Overview: Freedom 4 Wireless (F4W) is a developer of wireless, IP-based convergent communications solutions that focus on removing the barriers of traditional communications networks and

More information

Deploying ISA100 Wireless Distributed Networks. YC Cheng NEXCOM 2016/09/27

Deploying ISA100 Wireless Distributed Networks. YC Cheng NEXCOM 2016/09/27 Deploying ISA100 Wireless Distributed Networks YC Cheng NEXCOM 2016/09/27 Go Industrial Wireless for IIOT Industrial IoT Industrial Wireless Sensor Network Industrial Wi-Fi Backbone Industrial Network

More information

Monitoring the Network (CPE and WBS)

Monitoring the Network (CPE and WBS) Monitoring the Network (CPE and WBS) CHAPTERS 1. View the Device Information 2. View the Wireless Settings 3. View Wireless Signal Quality 4. View Radio Status 5. View the LAN Settings 6. View the WAN

More information

WiNG 5.x How-To Guide

WiNG 5.x How-To Guide WiNG 5.x How-To Guide Tunneling Remote Traffic using L2TPv3 Part No. TME-08-2012-01 Rev. A MOTOROLA, MOTO, MOTOROLA SOLUTIONS and the Stylized M Logo are trademarks or registered trademarks of Motorola

More information

MiMo Zen Series. Single Band 2x2 MIMO b/g/n Versatile Indoor Access Point 650MHz CPU / 2.4GHz at 300Mbps

MiMo Zen Series. Single Band 2x2 MIMO b/g/n Versatile Indoor Access Point 650MHz CPU / 2.4GHz at 300Mbps MiMo Zen Series Single Band 2x2 MIMO 802.11b/g/n Versatile Indoor Access Point 650MHz CPU / at 300Mbps Model: MMZ531 KEY FEATURES Qualcomm Atheros 533MHz Processor QCA9531 IEEE 802.11b/g/n compliant 26dBm

More information

Wireless and Mobile Networks Reading: Sections 2.8 and 4.2.5

Wireless and Mobile Networks Reading: Sections 2.8 and 4.2.5 Wireless and Mobile Networks Reading: Sections 2.8 and 4.2.5 Acknowledgments: Lecture slides are from Computer networks course thought by Jennifer Rexford at Princeton University. When slides are obtained

More information

Outline. CS5984 Mobile Computing. Dr. Ayman Abdel-Hamid, CS5984. Wireless Sensor Networks 1/2. Wireless Sensor Networks 2/2

Outline. CS5984 Mobile Computing. Dr. Ayman Abdel-Hamid, CS5984. Wireless Sensor Networks 1/2. Wireless Sensor Networks 2/2 CS5984 Mobile Computing Outline : a Survey Dr. Ayman Abdel-Hamid Computer Science Department Virginia Tech An Introduction to 1 2 1/2 Advances in micro-electro-mechanical systems technology, wireless communications,

More information

Chapter 7. Basic Wireless Concepts and Configuration. Part I

Chapter 7. Basic Wireless Concepts and Configuration. Part I Chapter 7 Basic Wireless Concepts and Configuration Part I CCNA3-1 Chapter 7-1 Note for Instructors These presentations are the result of a collaboration among the instructors at St. Clair College in Windsor,

More information

Wireless# Guide to Wireless Communications. Objectives

Wireless# Guide to Wireless Communications. Objectives Wireless# Guide to Wireless Communications Chapter 7 Low-Speed Wireless Local Area Networks Objectives Describe how WLANs are used List the components and modes of a WLAN Describe how an RF WLAN works

More information

Cisco WAP351 Wireless-N Dual Radio Access Point with 5-Port Switch

Cisco WAP351 Wireless-N Dual Radio Access Point with 5-Port Switch Data Sheet Cisco WAP351 Wireless-N Dual Radio Access Point with 5-Port Switch Improved Coverage, Easy to Deploy, Secure Business-Class Wireless-N Connectivity Highlights Provides cost-effective 802.11n

More information

Multi-hop Wireless Network and Its Applications

Multi-hop Wireless Network and Its Applications Multi-hop Wireless Network and Its Applications Junhee Lee Network Systems Lab. EECS, KAIST junhee@netsys.kaist.ac.kr Korea Advanced Institute of Science and Technology, Network Systems Lab. -1- Wireless

More information

Wireless technology Principles of Security

Wireless technology Principles of Security Wireless technology Principles of Security 1 Wireless technologies 2 Overview This module provides an introduction to the rapidly evolving technology of wireless LANs (WLANs). WLANs redefine the way the

More information

ECB N Multi-Function Gigabit Client Bridge

ECB N Multi-Function Gigabit Client Bridge ECB9500 is a powerful and multi-functioned 11n product with 7 major multi-functions, is designed to operate in every working environment for enterprises. ECB9500 is a Wireless Network device that delivers

More information

EnGenius M SeriesM M2000 M5000 M36 M35

EnGenius M SeriesM M2000 M5000 M36 M35 EnGenius M SeriesM M2000 M5000 M36 M35 Outline EnGenius M Series Product Specification What is the MESH Network How can MESH do Advantages of MESH Network EnGenius NMS Tool Real Test Result Application

More information

Architecture and Evaluation of an Unplanned b Mesh Network

Architecture and Evaluation of an Unplanned b Mesh Network Architecture and Evaluation of an Unplanned 802.11b Mesh Network John Bicket, Daniel Aguayo, Sanjit Biswas, and Robert Morris MIT CSAIL (MobiCom 05) slides by Jong-Kwon Lee, presented by Fallon Chen May

More information

Best Practice for Smart Classroom Deployments

Best Practice for Smart Classroom Deployments Best Practice for Smart Classroom Deployments This deployment guide is designed to embody insights and lessons learned from real-world deployment experience to help maximizing the success designing, implementing

More information

Day 1: Wi-Fi Technology Overview

Day 1: Wi-Fi Technology Overview Duration: 5days Hands on: Wireshark based real-life Wi-Fi packet trace analysis Demos : Alethea Wicheck multi-sta emulator for understanding performance of Wi-Fi APs and to study impact of multiple clients

More information

International Journal of Scientific & Engineering Research, Volume 6, Issue 3, March ISSN

International Journal of Scientific & Engineering Research, Volume 6, Issue 3, March ISSN International Journal of Scientific & Engineering Research, Volume 6, Issue 3, March-2015 1464 Performance Evaluation of AODV and DSDV Routing Protocols through Clustering in MANETS Prof. A Rama Rao, M

More information

IT220 Network Standards & Protocols. Unit 6: Chapter 6 Wireless LANs

IT220 Network Standards & Protocols. Unit 6: Chapter 6 Wireless LANs IT220 Network Standards & Protocols Unit 6: Chapter 6 Wireless LANs 2 Objectives Identify the major needs and stakeholders for computer networks and network applications. Identify the classifications of

More information

MIMO New Series. Single Band 2x2 MIMO b/g/n Versatile Indoor Access Point 650MHz CPU / 2.4GHz at 300Mbps

MIMO New Series. Single Band 2x2 MIMO b/g/n Versatile Indoor Access Point 650MHz CPU / 2.4GHz at 300Mbps MIMO New Series Single Band 2x2 MIMO 802.11b/g/n Versatile Indoor Access Point 650MHz CPU / at 300Mbps Model: MMN531 KEY FEATURES Qualcomm Atheros 650MHz Processor QCA9531 IEEE 802.11b/g/n compliant 26dBm

More information

Wireless AC2600 Wave 2 Dual-Band Unified Access Point

Wireless AC2600 Wave 2 Dual-Band Unified Access Point Product Highlights Next Generation Connectivity Features next-generation 802.11ac Wave 2 technology to deliver a reliable wireless connection at unparalleled combined speeds Unparalleled Performance Experience

More information

MMZ558. Dual Band 3x3 MIMO ac/b/g/n High Bandwidth Indoor Access Points 700MHz CPU / 2.4GHz 450Mbps / 5GHz 1300Mbps

MMZ558. Dual Band 3x3 MIMO ac/b/g/n High Bandwidth Indoor Access Points 700MHz CPU / 2.4GHz 450Mbps / 5GHz 1300Mbps MMZ558 Dual Band 3x3 MIMO 802.11ac/b/g/n High Bandwidth Indoor Access Points 700MHz CPU / 450Mbps / 1300Mbps KEY FEATURES Qualcomm Atheros 700MHz Processor QCA9558 IEEE 802.11ac/a/b/g/n compliant and concurrent

More information

Wireless Technologies

Wireless Technologies Wireless Technologies Networking for Home and Small Businesses Chapter 7 Manju. V. Sankar 1 Objectives Describe wireless technologies. Describe the various components and structure of a WLAN Describe wireless

More information

NT1210 Introduction to Networking. Unit 6: Chapter 6, Wireless LANs

NT1210 Introduction to Networking. Unit 6: Chapter 6, Wireless LANs NT1210 Introduction to Networking Unit 6: Chapter 6, Wireless LANs Objectives Identify the major needs and stakeholders for computer networks and network applications. Identify the classifications of networks

More information

The Open System Interconnect model

The Open System Interconnect model The Open System Interconnect model Telecomunicazioni Undergraduate course in Electrical Engineering University of Rome La Sapienza Rome, Italy 2007-2008 1 Layered network design Data networks are usually

More information

Networking interview questions

Networking interview questions Networking interview questions What is LAN? LAN is a computer network that spans a relatively small area. Most LANs are confined to a single building or group of buildings. However, one LAN can be connected

More information

Wireless LAN -Architecture

Wireless LAN -Architecture Wireless LAN -Architecture IEEE has defined the specifications for a wireless LAN, called IEEE 802.11, which covers the physical and data link layers. Basic Service Set (BSS) Access Point (AP) Distribution

More information

University of Würzburg Institute of Computer Science Research Report Series. Performance Comparison of Handover Mechanisms in Wireless LAN Networks

University of Würzburg Institute of Computer Science Research Report Series. Performance Comparison of Handover Mechanisms in Wireless LAN Networks University of Würzburg Institute of Computer Science Research Report Series Performance Comparison of Handover Mechanisms in Wireless LAN Networks Rastin Pries and Klaus Heck Report No. 339 September 2004

More information

Certified Wireless Network Administrator (CWNA) PW Chapter Medium Access. Chapter 8 Overview

Certified Wireless Network Administrator (CWNA) PW Chapter Medium Access. Chapter 8 Overview Certified Wireless Network Administrator (CWNA) PW0-105 Chapter 8 802.11 Medium Access Chapter 8 Overview CSMA/CA vs. CSMA/CD Distributed Coordination Function (DCF) Point Coordination Function (PCF) Hybrid

More information

Data Communications. Data Link Layer Protocols Wireless LANs

Data Communications. Data Link Layer Protocols Wireless LANs Data Communications Data Link Layer Protocols Wireless LANs Wireless Networks Several different types of communications networks are using unguided media. These networks are generally referred to as wireless

More information

MAC protocols. Lecturer: Dmitri A. Moltchanov

MAC protocols. Lecturer: Dmitri A. Moltchanov MAC protocols Lecturer: Dmitri A. Moltchanov E-mail: moltchan@cs.tut.fi http://www.cs.tut.fi/kurssit/tlt-2616/ OUTLINE: Problems for MAC to deal with; Design goals; Classification of MAC protocols Contention-based

More information

Wireless 11n Smart Repeater AP (1T1R)

Wireless 11n Smart Repeater AP (1T1R) (1T1R) 2014 Table of Contents 1. Introduction...3 1.1 Package contents... 3 1.2 Product Features... 3 1.3 Front Panel Description... 4 1.4 Rear Panel Description... 5 2. Installation...6 2.1 Hardware Installation...

More information