Simulation Based Analysis of FAST TCP using OMNET++
|
|
- Jasper Dickerson
- 5 years ago
- Views:
Transcription
1 Smulaton Based Analyss of FAST TCP usng OMNET++ Umar ul Hassan Md Term Report CS678 Topcs n Internet Research Sprng, 2006
2 Introducton Internet traffc s doublng roughly every 3 months because of rapd ncrease n number of users connected wth Internet as well as more bandwdth demandng multmeda applcatons. Internet traffc patterns are not unform durng whole day whch results s hgh tmes when everyone tred to send data on to network. Because Internet reles on best effort delvery protocols, congeston s unavodable. As TCP/IP s the de Facto standard for data transfer on Internet, numerous research efforts were drected towards congeston control n t. Because of the connectonless nature of IP, the TCP protocol becomes obvous choce for flow and congeston control. TCP uses self clockng; the mechansm of acknowledgments sent regularly by recever [1]. Ths allows TCP to adjust sender to adjust ts rate accordng to recever's rate for flow control. Mssng acknowledgments ndcate congeston s network. If rate at whch source gets acknowledgments decreases, the source has can not dfferentate whether ths s due to recever's flow control or network congeston. So TCP uses sldng wndow mechansm to handle both these problems [1]. Congeston Wndow Control Most of research efforts for TCP congeston control try to mprove send wndow management. In absence of explct feedback, two types of feedback sgnal are used by TCP as an ndcaton of congeston. Loss based technques consder packet loss as congeston sgnal. Packets are njected nto the network perodcally to generate packet loss. Then measurements are taken from packet losses to perform congeston control. Current Internet standard (RFC 2581) for TCP congeston control (known as TCP Reno) s a loss based congeston control technque. Reno ncludes mechansms lke slow start, dynamc wdow szng, fast retransmt and fast recovery for congeston wndow management [1]. Delay based technques use end to end packet queung delay as measure of congeston. Packets are tme stamped when they are sent, and when acknowledgments arrve the round trp tme s calculated. Transmsson tme s subtracted from RTT to calculate queung delay. Fnally ths queung delay s used to adjust congeston wndow accordngly. TCP Vegas [6] was the frst varaton for TCP congeston control algorthm whch uses delay based approach. It modfes the slow start method of TCP Reno and uses a new retransmsson mechansm. TCP Vegas tres to avod congeston by mnmzng the dfference between expected and actual congeston wndow. FAST TCP A congeston control algorthm can be thought of as workng on two levels from desgn perspectve. Flow level desgn decsons requre hgh utlzaton, low delays and loss, stablty and farness [2]. Whle packet level desgn nvolves strateges to mplement flow levels goals on end to end flows.
3 Current mostly wdely used varaton of TCP s Reno, whch uses packet loss as congeston sgnal. As bandwdth delay product ncreases for hgh speed networks ths algorthms become bottleneck. Accordng to [2] congeston wndow management n TCP Reno faces problems at both packet and flow level. The addtve ncrease per round trp tme s very slow and multplcatve decease s very fast for large congeston wndows. Also at packet level one bt congeston sgnal (packet loss) causes severe oscllatons n wndow sze. At flow level the dynamcs s unstable and very small loss probablty s requred to mantan large congeston wndows. As a result loss based algorthms do not scale properly accordng to ncrease n bandwdth. FAST TCP proposes a delay based technque augmented wth loss nformaton to elmnate these problems [2]. Because t uses queung delay (mult bt nformaton) as congeston sgnals, the algorthm can also choose not to change congeston wndow. It helps to stablze congeston wndow even as at large wndow szes. Also t does not requre gradual njecton for packets for generaton of packet loss event for measurements. Archtecture and Algorthms The proposed archtecture for FAST TCP breaks t nto four man components [2]. The data control component s responsble for determnng whch packet to transmt; ths nvolves transmsson new packets accordng to logcal sequence of data or retransmsson n case of loss. Estmaton component provdes measurements lke average and mnmum round trp tme and queung delay to other components. Congeston wndow sze s adjusted by Wndow Control component accordng to nformaton provded by estmaton component. Burstness Control component s used to avod long queues and large number of packet losses due to bursty data transmsson n hgh speed networks. FAST TCP works at two levels of tme scale; per data send/ack and per round trp tme. The Coarse Tunng Algorthm gven below s run per send/ack [7]
4 For earh source : 1. Intalzaton: count =w and faston =1 2. On arrval of each ACK of packet l a RTT l =CurrentTme TmeStamp l b ρ= mn 3, 1 w 8 c ARTT l = 1 ρ ARTT l ρ RTT l d If faston =1:. Calculate Δw =γ[ w l ] ARTT l d +α w. If. If Δw > β : w =w 1 Δw < β : w =w 1 e count =count 1 f If count 0 : One RTT s fnshed. faston =1 faston. count =w. Call Fne Tunng Algorthm Algorthm 1: Coarse Tunng Algorthm [7] The Fne Tunng Algorthm s run every round trp tme [7] For each source, on completeton of each RTT 1. Calculate Δw =γ[ w l ] ARTT l d +α w 2. If Δw 1: w =w 1 3. If Δw 1: w =w 1 Algorthm 2: Fne Tunng Algorthm [7] Where ARRT(l) s average round trp tme for packet l and w congeston wndow. In case of packet loss current FAST TCP mplementaton enter fast recovery stage of TCP Reno [2]. And after recovery from congeston FAST TCP s agan turned on. Smulatons OMNET++ s dscrete event smulaton package, now wdely used for network smulatons. I have mplemented FAST TCP accordng to above gven algorthm s
5 OMNET++. As part of ths project I wll compare my mplementaton wth the NS 2 based mplementaton of FAST TCP avalable of Internet. The fve test cases wth dfferent network topologes and confguratons used for evaluaton of NS 2 mplementaton are [8] Test 1: Multple source sharng one lnk Test 2: Multple source sharng multple lnk Test 3: Low buffer sze Test 4: Hgh bandwdth delay product Test 5: Random loss I have tested my code for Test 1, where 3 follow were setup between three source and destnaton pars. Flow 1 from between s1 and d1 was for tme 0s 100s Flow 2 from between s2 and d2 was for tme 20s 80s Flow 3 from between s3 and d3 was for tme 40s 60s The topology s shown n followng fgure Fgure 1: Test 1 topology The dfference between TCP Reno and TCP Fast was the ntal exponental ncrease durng slow start for TCP Reno, but overall trend was same for both varatons. Snce the was no packet loss so there s no ndcaton of congeston wndow changes n case of loss recovery. These results are very dfferent form the results of shown by NS 2, smulaton parameters and TCP parameters dfference can be reasons for ths dfference. The congeston wndow sze change accordng to tme s gven below
6 Fgure 2: TCP Reno results Fgure 3: TCP Fast results
7 References [1] W. Stallngs, Hgh speed Networks and Internets: Performance and Qualty of Servce, Prentce Hall, [2] C Jn, DX We, SH Low, FAST TCP: motvaton, archtecture, algorthms, performance, Proceedngs of IEEE INFOCOM, 2004 [3] Wkpeda, TCP Congeston Avodance Algorthm January 30, 2006 [4] OMNET++ Dscrete Event Smulaton System, March 20, 2006 [5] FAST TCP Homepage, March 20, 2006 [6] L. S. Brakmo, L. L. Peterson, TCP Vegas: End to End Congeston Avodance on Global Internet, IEEE Journal of Selected Areas n Communcatons Vol 13, October [7] X. We, Congeston Control Algorthms for Hgh Speed Long Dstance TCP Connectons, MS. Thess, Caltech, Pasadena, CA, June 2004 [8] L. Andrew, FAST TCP smulator module for ns 2, URL: 5 March, 2006.
Real-Time Guarantees. Traffic Characteristics. Flow Control
Real-Tme Guarantees Requrements on RT communcaton protocols: delay (response s) small jtter small throughput hgh error detecton at recever (and sender) small error detecton latency no thrashng under peak
More informationWhy Congestion Control. Congestion Control and Active Queue Management. TCP Congestion Control Behavior. Generic TCP CC Behavior: Additive Increase
Congeston Control and Actve Queue Management Congeston Control, Effcency and Farness Analyss of TCP Congeston Control A smple TCP throughput formula RED and Actve Queue Management How RED works Flud model
More informationInternet Traffic Managers
Internet Traffc Managers Ibrahm Matta matta@cs.bu.edu www.cs.bu.edu/faculty/matta Computer Scence Department Boston Unversty Boston, MA 225 Jont work wth members of the WING group: Azer Bestavros, John
More informationCS 268: Lecture 8 Router Support for Congestion Control
CS 268: Lecture 8 Router Support for Congeston Control Ion Stoca Computer Scence Dvson Department of Electrcal Engneerng and Computer Scences Unversty of Calforna, Berkeley Berkeley, CA 9472-1776 Router
More informationThe Impact of Delayed Acknowledgement on E-TCP Performance In Wireless networks
The mpact of Delayed Acknoledgement on E-TCP Performance n Wreless netorks Deddy Chandra and Rchard J. Harrs School of Electrcal and Computer System Engneerng Royal Melbourne nsttute of Technology Melbourne,
More informationFAST TCP: Motivation, Architecture, Algorithms, Performance
FAST TCP: Motvaton, Archtecture, Algorthms, Performance Cheng Jn Davd X. We Steven H. Low Engneerng & Appled Scence, Caltech http://netlab.caltech.edu Abstract We descrbe FAST TCP, a new TCP congeston
More informationEfficient Distributed File System (EDFS)
Effcent Dstrbuted Fle System (EDFS) (Sem-Centralzed) Debessay(Debsh) Fesehaye, Rahul Malk & Klara Naherstedt Unversty of Illnos-Urbana Champagn Contents Problem Statement, Related Work, EDFS Desgn Rate
More informationComparisons of Packet Scheduling Algorithms for Fair Service among Connections on the Internet
Comparsons of Packet Schedulng Algorthms for Far Servce among Connectons on the Internet Go Hasegawa, Takahro Matsuo, Masayuk Murata and Hdeo Myahara Department of Infomatcs and Mathematcal Scence Graduate
More informationA New Token Allocation Algorithm for TCP Traffic in Diffserv Network
A New Token Allocaton Algorthm for TCP Traffc n Dffserv Network A New Token Allocaton Algorthm for TCP Traffc n Dffserv Network S. Sudha and N. Ammasagounden Natonal Insttute of Technology, Truchrappall,
More informationReal-time interactive applications
Real-tme nteractve applcatons PC-2-PC phone PC-2-phone Dalpad Net2phone vdeoconference Webcams Now we look at a PC-2-PC Internet phone example n detal Internet phone over best-effort (1) Best effort packet
More informationA STUDY ON THE PERFORMANCE OF TRANSPORT PROTOCOLS COMBINING EXPLICIT ROUTER FEEDBACK WITH WINDOW CONTROL ALGORITHMS AARTHI HARNA TRIVESALOOR NARAYANAN
A STUDY ON THE PERFORMANCE OF TRANSPORT PROTOCOLS COMBINING EXPLICIT ROUTER FEEDBACK WITH WINDOW CONTROL ALGORITHMS By AARTHI HARNA TRIVESALOOR NARAYANAN Master of Scence n Computer Scence Oklahoma State
More informationAvoiding congestion through dynamic load control
Avodng congeston through dynamc load control Vasl Hnatyshn, Adarshpal S. Seth Department of Computer and Informaton Scences, Unversty of Delaware, Newark, DE 976 ABSTRACT The current best effort approach
More informationRAP. Speed/RAP/CODA. Real-time Systems. Modeling the sensor networks. Real-time Systems. Modeling the sensor networks. Real-time systems:
Speed/RAP/CODA Presented by Octav Chpara Real-tme Systems Many wreless sensor network applcatons requre real-tme support Survellance and trackng Border patrol Fre fghtng Real-tme systems: Hard real-tme:
More informationLoad-Balanced Anycast Routing
Load-Balanced Anycast Routng Chng-Yu Ln, Jung-Hua Lo, and Sy-Yen Kuo Department of Electrcal Engneerng atonal Tawan Unversty, Tape, Tawan sykuo@cc.ee.ntu.edu.tw Abstract For fault-tolerance and load-balance
More informationNeural Network Control for TCP Network Congestion
5 Amercan Control Conference June 8-, 5. Portland, OR, USA FrA3. Neural Network Control for TCP Network Congeston Hyun C. Cho, M. Sam Fadal, Hyunjeong Lee Electrcal Engneerng/6, Unversty of Nevada, Reno,
More informationA Model Based on Multi-agent for Dynamic Bandwidth Allocation in Networks Guang LU, Jian-Wen QI
216 Jont Internatonal Conference on Artfcal Intellgence and Computer Engneerng (AICE 216) and Internatonal Conference on etwork and Communcaton Securty (CS 216) ISB: 978-1-6595-362-5 A Model Based on Mult-agent
More informationA Binarization Algorithm specialized on Document Images and Photos
A Bnarzaton Algorthm specalzed on Document mages and Photos Ergna Kavalleratou Dept. of nformaton and Communcaton Systems Engneerng Unversty of the Aegean kavalleratou@aegean.gr Abstract n ths paper, a
More informationGateway Algorithm for Fair Bandwidth Sharing
Algorm for Far Bandwd Sharng We Y, Rupnder Makkar, Ioanns Lambadars Department of System and Computer Engneerng Carleton Unversty 5 Colonel By Dr., Ottawa, ON KS 5B6, Canada {wy, rup, oanns}@sce.carleton.ca
More informationTECHNICAL REPORT AN OPTIMAL DISTRIBUTED PROTOCOL FOR FAST CONVERGENCE TO MAXMIN RATE ALLOCATION. Jordi Ros and Wei K Tsai
TECHNICAL REPORT AN OPTIMAL DISTRIUTED PROTOCOL FOR FAST CONVERGENCE TO MAXMIN RATE ALLOCATION Jord Ros and We K Tsa Department of Electrcal and Computer Engneerng Unversty of Calforna, Irvne 1 AN OPTIMAL
More informationQoS Evaluation of HTTP over Satellites
2011 Internatonal Conference on Cyber-Enabled Dstrbuted Computng and Knowledge Dscovery QoS Evaluaton of HTTP over Satelltes Lukman Audah Faculty of Electrcal and Electronc Engneerng Unverst Tun Hussen
More informationA High-Performance Router: Using Fair-Dropping Policy
Internatonal Journal of Computer Scence and Telecommuncatons [Volume 5, Issue 4, Aprl 2014] A Hgh-Performance Router: Usng Far-Droppng Polcy ISSN 2047-3338 Seyyed Nasser Seyyed Hashem 1, Shahram Jamal
More informationState of the Art in Differentiated
Outlne Dfferentated Servces on the Internet Explct Allocaton of Best Effort Packet Delvery Servce, D. Clark and W. Fang A Two bt Dfferentated Servces Archtecture for the Internet, K. Nchols, V. Jacobson,
More informationBAIMD: A Responsive Rate Control for TCP over Optical Burst Switched (OBS) Networks
AIMD: A Responsve Rate Control for TCP over Optcal urst Swtched (OS) Networks asem Shhada 1, Pn-Han Ho 1,2, Fen Hou 2 School of Computer Scence 1, Electrcal & Computer Engneerng 2 U. of Waterloo, Waterloo,
More informationDesign of the Application-Level Protocol for Synchronized Multimedia Sessions
Desgn of the Applcaton-Level Protocol for Synchronzed Multmeda Sessons Chun-Chuan Yang Multmeda and Communcatons Laboratory Department of Computer Scence and Informaton Engneerng Natonal Ch Nan Unversty,
More informationModeling TCP Throughput: A Simple Model and its Empirical Validation
Modelng TCP Throughut: A Smle Model and ts mrcal Valdaton Jtendra Padhye, Vctor Frou, Don Towsley, Jm Kuros 0-09-9 Presenter: Ognjen Vukovc Modelng TCP Throughut: A Smle Model and ts mrcal Valdaton Motvaton
More informationModeling the Bandwidth Sharing Behavior of Congestion Controlled Flows
Modelng the Bandwdth Sharng Behavor of Congeston Controlled Flows Kang L A dssertaton presented to the faculty of the OGI School of Scence & Engneerng at Oregon Health & Scence Unversty n partal fulfllment
More informationHigh Performance DiffServ Mechanism for Routers and Switches: Packet Arrival Rate Based Queue Management for Class Based Scheduling
Hgh Performance DffServ Mechansm for Routers and Swtches: Packet Arrval Rate Based Queue Management for Class Based Schedulng Bartek Wydrowsk and Moshe Zukerman ARC Specal Research Centre for Ultra-Broadband
More informationEfficient Load-Balanced IP Routing Scheme Based on Shortest Paths in Hose Model. Eiji Oki May 28, 2009 The University of Electro-Communications
Effcent Loa-Balance IP Routng Scheme Base on Shortest Paths n Hose Moel E Ok May 28, 2009 The Unversty of Electro-Communcatons Ok Lab. Semnar, May 28, 2009 1 Outlne Backgroun on IP routng IP routng strategy
More informationScheduling and queue management. DigiComm II
Schedulng and queue management Tradtonal queung behavour n routers Data transfer: datagrams: ndvdual packets no recognton of flows connectonless: no sgnallng Forwardng: based on per-datagram forwardng
More informationDetermining the Optimal Bandwidth Based on Multi-criterion Fusion
Proceedngs of 01 4th Internatonal Conference on Machne Learnng and Computng IPCSIT vol. 5 (01) (01) IACSIT Press, Sngapore Determnng the Optmal Bandwdth Based on Mult-crteron Fuson Ha-L Lang 1+, Xan-Mn
More informationLoad Balancing for Hex-Cell Interconnection Network
Int. J. Communcatons, Network and System Scences,,, - Publshed Onlne Aprl n ScRes. http://www.scrp.org/journal/jcns http://dx.do.org/./jcns.. Load Balancng for Hex-Cell Interconnecton Network Saher Manaseer,
More informationGoals and Approach Type of Resources Allocation Models Shared Non-shared Not in this Lecture In this Lecture
Goals and Approach CS 194: Dstrbuted Systems Resource Allocaton Goal: acheve predcable performances Three steps: 1) Estmate applcaton s resource needs (not n ths lecture) 2) Admsson control 3) Resource
More informationSolutions for Real-Time Communication over Best-Effort Networks
Solutons for Real-Tme Communcaton over Best-Effort Networks Anca Hangan, Ramona Marfevc, Gheorghe Sebestyen Techncal Unversty of Cluj-Napoca, Computer Scence Department {Anca.Hangan, Ramona.Marfevc, Gheorghe.Sebestyen}@cs.utcluj.ro
More informationEFT: a high throughput routing metric for IEEE s wireless mesh networks
Ann. Telecommun. (2010) 65:247 262 DOI 10.1007/s12243-009-0130-1 EFT: a hgh throughput routng metrc for IEEE 802.11s wreless mesh networks Md. Sharful Islam Muhammad Mahbub Alam Md. Abdul Hamd Choong Seon
More informationDynamic Bandwidth Allocation Schemes in Hybrid TDM/WDM Passive Optical Networks
Dynamc Bandwdth Allocaton Schemes n Hybrd TDM/WDM Passve Optcal Networks Ahmad R. Dhan, Chad M. Ass, and Abdallah Sham Concorda Insttue for Informaton Systems Engneerng Concorda Unversty, Montreal, Quebec,
More informationFast Retransmission of Real-Time Traffic in HIPERLAN/2 Systems
Fast Retransmsson of Real-Tme Traffc n HIPERLAN/ Systems José A Afonso and Joaqum E Neves Department of Industral Electroncs Unversty of Mnho, Campus de Azurém 4800-058 Gumarães, Portugal {joseafonso,
More informationInter-protocol fairness between
Inter-protocol farness between TCP New Reno and TCP Westwood+ Nels Möller, Chad Barakat, Konstantn Avrachenkov, and Etan Altman KTH, School of Electrcal Engneerng SE- 44, Sweden Emal: nels@ee.kth.se INRIA
More informationFAHP and Modified GRA Based Network Selection in Heterogeneous Wireless Networks
2017 2nd Internatonal Semnar on Appled Physcs, Optoelectroncs and Photoncs (APOP 2017) ISBN: 978-1-60595-522-3 FAHP and Modfed GRA Based Network Selecton n Heterogeneous Wreless Networks Xaohan DU, Zhqng
More informationNetwork-Driven Layered Multicast with IPv6
Network-Drven Layered Multcast wth IPv6 Ho-pong Sze and Soung C. Lew Department of Informaton Engneerng, The Chnese Unversty of Hong Kong, Shatn, N.T., Hong Kong {hpsze8, soung}@e.cuhk.edu.hk Abstract.
More informationIntegrated Congestion-Control Mechanism in Optical Burst Switching Networks
Ths full text paper was peer revewed at the drecton of IEEE Communcatons Socety subect matter experts for publcaton n the IEEE GLOBECOM 2005 proceedngs Integrated Congeston-Control Mechansm n Optcal Burst
More informationAnalysis of Collaborative Distributed Admission Control in x Networks
1 Analyss of Collaboratve Dstrbuted Admsson Control n 82.11x Networks Thnh Nguyen, Member, IEEE, Ken Nguyen, Member, IEEE, Lnha He, Member, IEEE, Abstract Wth the recent surge of wreless home networks,
More informationExperimentations with TCP Selective Acknowledgment
Expermentatons wth TCP Selectve Acknowledgment Renaud Bruyeron, Bruno Hemon, Lxa Zhang UCLA Computer Scence Department {bruyeron, bruno, lxa}@cs.ucla.edu Abstract Ths paper reports our expermentaton results
More informationQoS Bandwidth Estimation Scheme for Delay Sensitive Applications in MANETs
Communcatons and Network, 2013, 5, 1-8 http://dx.do.org/10.4236/cn.2013.51001 Publshed Onlne February 2013 (http://www.scrp.org/journal/cn) QoS Bandwdth Estmaton Scheme for Delay Senstve Applcatons n MANETs
More informationJTCP: Congestion Distinction by the Jitter-based Scheme over Wireless Networks
JTCP: Congeston stncton by the Jtter-based Scheme over Wreless Networks Erc Hsao-Kuang Wu, Mng-I Hseh, Me-Zhen Chen and Shao-Y Hung ept. of Computer Scence and Informaton Engneerng, Natonal Central Unversty,
More informationOptimum Number of RLC Retransmissions for Best TCP Performance in UTRAN
Optmum Number of RLC Retransmssons for Best TCP Performance n UTRAN Olver De Mey, Laurent Schumacher, Xaver Dubos {ode,lsc,xdubos}@nfo.fundp.ac.be Computer Scence Insttute, The Unversty of Namur (FUNDP)
More informationRe-routing Instability in IEEE Multi-hop Ad-hoc Networks *
Re-routng Instablty n IEEE 802.11 Mult-hop Ad-hoc Networks * Png Chung Ng and Soung Chang Lew Department of Informaton Engneerng The Chnese Unversty of Hong Kong {pcng3, soung}@e.cuhk.edu.hk Abstract TCP
More informationExtending the Functionality of RTP/RTCP Implementation in Network Simulator (NS-2) to support TCP friendly congestion control
Extendng the Functonalty of RTP/RTCP Implementaton n Network Smulator (NS-2) to support TCP frendly congeston control Chrstos Bouras Research Academc Computer Technology Insttute and Unversty of Patras
More informationEvaluation of TCP Variants and Bandwidth on Demand over Next Generation Satellite Network
Evaluaton of TCP Varants and Bandwdth on Demand over Next Generaton Satellte Network Songrth Kttperachol, Zhl Sun and Hatham Cruckshank Centre for Communcaton Systems Research Unversty of Surrey Guldford,
More informationSimulation and Exploration of RCP in the networks
EE384Y Smulaton and Exploraton of P n the networks Sprng, 003 Smulaton and Exploraton of P n the networks hanghua He changhua@stanford.edu June 06, 003 Abstract P (ate ontrol Protocol) s a rate-based congeston
More informationResource and Virtual Function Status Monitoring in Network Function Virtualization Environment
Journal of Physcs: Conference Seres PAPER OPEN ACCESS Resource and Vrtual Functon Status Montorng n Network Functon Vrtualzaton Envronment To cte ths artcle: MS Ha et al 2018 J. Phys.: Conf. Ser. 1087
More informationRouting in Degree-constrained FSO Mesh Networks
Internatonal Journal of Hybrd Informaton Technology Vol., No., Aprl, 009 Routng n Degree-constraned FSO Mesh Networks Zpng Hu, Pramode Verma, and James Sluss Jr. School of Electrcal & Computer Engneerng
More informationDESIGNING TRANSMISSION SCHEDULES FOR WIRELESS AD HOC NETWORKS TO MAXIMIZE NETWORK THROUGHPUT
DESIGNING TRANSMISSION SCHEDULES FOR WIRELESS AD HOC NETWORKS TO MAXIMIZE NETWORK THROUGHPUT Bran J. Wolf, Joseph L. Hammond, and Harlan B. Russell Dept. of Electrcal and Computer Engneerng, Clemson Unversty,
More informationA Finite Queue Model Analysis of PMRC-based Wireless Sensor Networks
A Fnte Queue Model Analyss of PMRC-based Wreless Sensor Networks Qaoqn L, Me Yang, Hongyan Wang, Yngtao Jang, Jazh Zeng College of Computer Scence and Technology, Unversty of Electronc Scence and Technology,
More informationA Frame Packing Mechanism Using PDO Communication Service within CANopen
28 A Frame Packng Mechansm Usng PDO Communcaton Servce wthn CANopen Mnkoo Kang and Kejn Park Dvson of Industral & Informaton Systems Engneerng, Ajou Unversty, Suwon, Gyeongg-do, South Korea Summary The
More informationPERFORMANCE EVALUATION OF VOICE OVER IP USING MULTIPLE AUDIO CODEC SCHEMES
ISSN 1819-668 www.arpnjournals.com PERFORMANCE EVALUATION OF VOICE OVER IP USING MULTIPLE AUDIO CODEC SCHEMES L. Audah 1, A.A.M. Kamal 1, J. Abdullah 1, S.A. Hamzah 1 and M.A.A. Razak 2 1 Optcal Communcaton
More informationImproving Congestion Control for Concurrent Multipath Transfer through Bandwidth Estimation based Resource Pooling
Improvng Congeston Control for Concurrent Multpath Transfer through Bandwdth Estmaton based Resource Poolng Samar Shalendra, R. Bhattacharjee, Member IEEE, Sanjay K. Bose, Senor Member IEEE Department
More informationPriority-Based Scheduling Algorithm for Downlink Traffics in IEEE Networks
Prorty-Based Schedulng Algorthm for Downlnk Traffcs n IEEE 80.6 Networks Ja-Mng Lang, Jen-Jee Chen, You-Chun Wang, Yu-Chee Tseng, and Bao-Shuh P. Ln Department of Computer Scence Natonal Chao-Tung Unversty,
More informationChannel-Quality Dependent Earliest Deadline Due Fair Scheduling Schemes for Wireless Multimedia Networks
Channel-Qualty Dependent Earlest Deadlne Due Far Schedulng Schemes for Wreless Multmeda Networks Ahmed K. F. Khattab Khaled M. F. Elsayed ahmedkhattab@eng.cu.edu.eg khaled@eee.org Department of Electroncs
More informationBandwidth Allocation for Service Level Agreement Aware Ethernet Passive Optical Networks
Bandwdth Allocaton for Servce Level Agreement Aware Ethernet Passve Optcal Networks Dawd Nowak Performance Engneerng Laboratory School of Electronc Engneerng Dubln Cty Unversty Emal: nowakd@eengdcue Phlp
More informationPerformance Comparison of a QoS Aware Routing Protocol for Wireless Sensor Networks
Communcatons and Network, 2016, 8, 45-55 Publshed Onlne February 2016 n ScRes. http://www.scrp.org/journal/cn http://dx.do.org/10.4236/cn.2016.81006 Performance Comparson of a QoS Aware Routng Protocol
More informationImproving TCP Performance over an On-board Multi-homed Network
Improvng TCP Performance over an On-board Mult-homed Networ Kun-chan Lan Department of Computer Scence and Informaton Engneerng Natonal Cheng Kung Unversty Tanan, Tawan lan@cse.ncu.edu.tw Abstract Prevously,
More informationDerivation of Three Queue Nodes Discrete-Time Analytical Model Based on DRED Algorithm
Seventh Internatonal Conference on Informaton Technology Dervaton of Three Queue Nodes Dscrete-Tme Analytcal Model Based on DRED Algorthm Jafar Ababneh, Hussen Abdel-Jaber, 3 Fad Thabtah, 3 Wael Had, EmranBadarneh
More informationDesign and Experimental Evaluation of a Cross-Layer Deadline-Based Joint Routing and Spectrum Allocation Algorithm
Desgn and Expermental Evaluaton of a Cross-Layer Deadlne-Based Jont Routng and Spectrum Allocaton Algorthm Jthn Jagannath, Sean Furman, Tommaso Meloda, and Andrew Drozd Abstract The desgn and mplementaton
More informationFair and Scalable Load Distribution in the Internet
Proc. 3rd Internatonal Conerence on Internet Computng, Las Vegas, NV (June 2002), pp. 201-208. Far and Scalable Load Dstrbuton n the Internet Vasl Hnatyshn and Adarshpal S. Seth Department o Computer and
More informationARTICLE IN PRESS. Computer Networks xxx (2008) xxx xxx. Contents lists available at ScienceDirect. Computer Networks
Computer Networks xxx (28) xxx xxx Contents lsts avalable at ScenceDrect Computer Networks journal homepage: www.elsever.com/locate/comnet On applyng far queung dscplne to schedule requests at access gateway
More informationIJCTA Nov-Dec 2016 Available
Dr K Santh et al, Internatonal Journal of Computer Technology & Applcatons,Vol 7(6),773-779 Optmzed Route Technque for DSR Routng Protocol n MANET Dr.K.Santh, Assocate Professor, Dept. of Computer Scence,
More informationInterclass Collision Protection for IEEE e Wireless LANs
Interclass Collson Protecton for IEEE 82.e Wreless LANs Woon Sun Cho, Chae Y. Lee Dstrbuted Coordnaton Functon (DCF) n IEEE 82. and Enhanced Dstrbuted Channel Access (EDCA) n IEEE 82.e are contenton-based
More informationAdvanced Computer Networks
Char of Network Archtectures and Servces Department of Informatcs Techncal Unversty of Munch Note: Durng the attendance check a stcker contanng a unque QR code wll be put on ths exam. Ths QR code contans
More informationAggregated traffic flow weight controlled hierarchical MAC protocol for wireless sensor networks
Ann. Telecommun. (29) 64:75 721 DOI.7/s12243-9-95- Aggregated traffc flow weght controlled herarchcal MAC protocol for wreless sensor networks M. Abdur Razzaque M. Mamun-Or-Rashd Muhammad Mahbub Alam Choong
More informationMobility Based Routing Protocol with MAC Collision Improvement in Vehicular Ad Hoc Networks
Moblty Based Routng Protocol wth MAC Collson Improvement n Vehcular Ad Hoc Networks Zhhao Dng, Pny Ren, Qnghe Du Shaanx Smart Networks and Ubqutous Access Rearch Center School of Electronc and Informaton
More informationDEAR: A DEVICE AND ENERGY AWARE ROUTING PROTOCOL FOR MOBILE AD HOC NETWORKS
DEAR: A DEVICE AND ENERGY AWARE ROUTING PROTOCOL FOR MOBILE AD HOC NETWORKS Arun Avudanayagam Yuguang Fang Wenjng Lou Department of Electrcal and Computer Engneerng Unversty of Florda Ganesvlle, FL 3261
More informationA Performance Analysis Model of TCP over Multiple Heterogeneous Paths for 5G Mobile Services
A Performance Analyss Model of TCP over Multple Heterogeneous Paths for 5G Moble Servces Jayang Song 1, Png Dong 1, Huachun Zhou 1, Tao Zheng 1, Xaojang Du 2, Mohsen Guzan 3 1 School of Electronc Informaton
More informationVirtual Machine Migration based on Trust Measurement of Computer Node
Appled Mechancs and Materals Onlne: 2014-04-04 ISSN: 1662-7482, Vols. 536-537, pp 678-682 do:10.4028/www.scentfc.net/amm.536-537.678 2014 Trans Tech Publcatons, Swtzerland Vrtual Machne Mgraton based on
More informationEnhanced Signaling Scheme with Admission Control in the Hybrid Optical Wireless (HOW) Networks
Enhanced Sgnalng Scheme wth Admsson Control n the Hybrd Optcal Wreless (HOW) Networks Yng Yan, Hao Yu, Henrk Wessng, and Lars Dttmann Department of Photoncs Techncal Unversty of Denmark Lyngby, Denmark
More informationA Semi-Distributed Load Balancing Architecture and Algorithm for Heterogeneous Wireless Networks
A Sem-Dstrbuted oad Balancng Archtecture and Algorthm for Heterogeneous reless Networks Md. Golam Rabul Ala Choong Seon Hong * Kyung Hee Unversty, Korea rob@networkng.khu.ac.kr, cshong@khu.ac.kr Abstract
More informationPricing Network Resources for Adaptive Applications in a Differentiated Services Network
IEEE INFOCOM Prcng Network Resources for Adaptve Applcatons n a Dfferentated Servces Network Xn Wang and Hennng Schulzrnne Columba Unversty Emal: {xnwang, schulzrnne}@cs.columba.edu Abstract The Dfferentated
More informationIEEE E: QOS PROVISIONING AT THE MAC LAYER YANG XIAO, THE UNIVERSITY OF MEMPHIS
ACCEPTED FROM O PEN C ALL IEEE 802.11E: QOS PROVISIONING AT THE MAC LAYER YANG XIAO, THE UNIVERSITY OF MEMPHIS ess AIFS[j] AIFS[] PIFS SIFS AIFS[] Content 0 to CW Bac Slot Select s The emergng IEEE 802.11e
More informationTechnical Report. i-game: An Implicit GTS Allocation Mechanism in IEEE for Time- Sensitive Wireless Sensor Networks
www.hurray.sep.pp.pt Techncal Report -GAME: An Implct GTS Allocaton Mechansm n IEEE 802.15.4 for Tme- Senstve Wreless Sensor etworks Ans Koubaa Máro Alves Eduardo Tovar TR-060706 Verson: 1.0 Date: Jul
More informationQuantifying Performance Models
Quantfyng Performance Models Prof. Danel A. Menascé Department of Computer Scence George Mason Unversty www.cs.gmu.edu/faculty/menasce.html 1 Copyrght Notce Most of the fgures n ths set of sldes come from
More informationARTICLE IN PRESS. Signal Processing: Image Communication
Sgnal Processng: Image Communcaton 23 (2008) 754 768 Contents lsts avalable at ScenceDrect Sgnal Processng: Image Communcaton journal homepage: www.elsever.com/locate/mage Dstrbuted meda rate allocaton
More informationEvaluation of Parallel Processing Systems through Queuing Model
ISSN 2278-309 Vkas Shnde, Internatonal Journal of Advanced Volume Trends 4, n Computer No.2, March Scence - and Aprl Engneerng, 205 4(2), March - Aprl 205, 36-43 Internatonal Journal of Advanced Trends
More informationOPTIMAL CONFIGURATION FOR NODES IN MIXED CELLULAR AND MOBILE AD HOC NETWORK FOR INET
OPTIMAL CONFIGURATION FOR NODE IN MIED CELLULAR AND MOBILE AD HOC NETWORK FOR INET Olusola Babalola D.E. Department of Electrcal and Computer Engneerng Morgan tate Unversty Dr. Rchard Dean Faculty Advsor
More informationA fair buffer allocation scheme
A far buffer allocaton scheme Juha Henanen and Kalev Klkk Telecom Fnland P.O. Box 228, SF-330 Tampere, Fnland E-mal: juha.henanen@tele.f Abstract An approprate servce for data traffc n ATM networks requres
More information3. CR parameters and Multi-Objective Fitness Function
3 CR parameters and Mult-objectve Ftness Functon 41 3. CR parameters and Mult-Objectve Ftness Functon 3.1. Introducton Cogntve rados dynamcally confgure the wreless communcaton system, whch takes beneft
More informationWIRELESS communication technology has gained widespread
616 IEEE TRANSACTIONS ON MOBILE COMPUTING, VOL. 4, NO. 6, NOVEMBER/DECEMBER 2005 Dstrbuted Far Schedulng n a Wreless LAN Ntn Vadya, Senor Member, IEEE, Anurag Dugar, Seema Gupta, and Paramvr Bahl, Senor
More informationA Fair Access Mechanism Based on TXOP in IEEE e Wireless Networks
11 Internatonal Journal of Communcaton Networks and Informaton Securty (IJCNIS) Vol. 8, No. 1, Aprl 16 A Far Access Mechansm Based on TXOP n IEEE 8.11e Wreless Networks Marjan Yazdan 1, Maryam Kamal, Neda
More informationBuffering High-Speed Packets with Tri-Stage Memory Array and Its Performance Analysis
000-9825/2005/6(2)28 2005 Journal of Software Vol6, No2,2+, 2,, (,00084) 2 (, 450002) Bufferng Hgh-Speed Packets wth Tr-Stage Memory Array and Its Performance Analyss WANG Peng,2+, YI Peng 2, JIN De-Peng,
More informationPerformance Improvement of Direct Diffusion Algorithm in Sensor Networks
Mddle-East Journal of Scentfc Research 2 (): 566-574, 202 ISSN 990-9233 IDOSI Publcatons, 202 DOI: 0.5829/dos.mejsr.202.2..43 Performance Improvement of Drect Dffuson Algorthm n Sensor Networks Akbar Bemana
More informationA Fair MAC Algorithm with Dynamic Priority for e WLANs
29 Internatonal Conference on Communcaton Software and Networks A Far MAC Algorthm wth Dynamc Prorty for 82.e WLANs Rong He, Xumng Fang Provncal Key Lab of Informaton Codng & Transmsson, Southwest Jaotong
More informationHIERARCHICAL SCHEDULING WITH ADAPTIVE WEIGHTS FOR W-ATM *
Copyrght Notce c 1999 IEEE. Personal use of ths materal s permtted. However, permsson to reprnt/republsh ths materal for advertsng or promotonal purposes or for creatng new collectve wors for resale or
More informationABRC: An End-to-End Rate Adaptation Scheme for Multimedia Streaming over Wireless LAN*
ARC: An End-to-End Rate Adaptaton Scheme for Multmeda Streamng over Wreless LAN We Wang Soung C Lew Jack Y Lee Department of Informaton Engneerng he Chnese Unversty of Hong Kong Shatn N Hong Kong {wwang2
More informationPerformance analysis of distributed cluster-based MAC protocol for multiuser MIMO wireless networks
RESEARCH Open Access Performance analyss of dstrbuted cluster-based MAC protocol for multuser MIMO wreless networks Azadeh Ettefagh *, Marc Kuhn, Celal Eşl and Armn Wttneben Abstract It s known that multuser
More informationWishing you all a Total Quality New Year!
Total Qualty Management and Sx Sgma Post Graduate Program 214-15 Sesson 4 Vnay Kumar Kalakband Assstant Professor Operatons & Systems Area 1 Wshng you all a Total Qualty New Year! Hope you acheve Sx sgma
More informationBurst Round Robin as a Proportional-Share Scheduling Algorithm
Burst Round Robn as a Proportonal-Share Schedulng Algorthm Tarek Helmy * Abdelkader Dekdouk ** * College of Computer Scence & Engneerng, Kng Fahd Unversty of Petroleum and Mnerals, Dhahran 31261, Saud
More informationParallelism for Nested Loops with Non-uniform and Flow Dependences
Parallelsm for Nested Loops wth Non-unform and Flow Dependences Sam-Jn Jeong Dept. of Informaton & Communcaton Engneerng, Cheonan Unversty, 5, Anseo-dong, Cheonan, Chungnam, 330-80, Korea. seong@cheonan.ac.kr
More informationCluster Analysis of Electrical Behavior
Journal of Computer and Communcatons, 205, 3, 88-93 Publshed Onlne May 205 n ScRes. http://www.scrp.org/ournal/cc http://dx.do.org/0.4236/cc.205.350 Cluster Analyss of Electrcal Behavor Ln Lu Ln Lu, School
More informationInstantaneous Fairness of TCP in Heterogeneous Traffic Wireless LAN Environments
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS VOL. 10, NO. 8, Aug. 2016 3753 Copyrght c2016 KSII Instantaneous Farness of TCP n Heterogeneous Traffc Wreless LAN Envronments Young-Jn Jung 1 and
More informationPerformance Evaluation of Information Retrieval Systems
Why System Evaluaton? Performance Evaluaton of Informaton Retreval Systems Many sldes n ths secton are adapted from Prof. Joydeep Ghosh (UT ECE) who n turn adapted them from Prof. Dk Lee (Unv. of Scence
More informationVideo Proxy System for a Large-scale VOD System (DINA)
Vdeo Proxy System for a Large-scale VOD System (DINA) KWUN-CHUNG CHAN #, KWOK-WAI CHEUNG *# #Department of Informaton Engneerng *Centre of Innovaton and Technology The Chnese Unversty of Hong Kong SHATIN,
More informationQuantifying Responsiveness of TCP Aggregates by Using Direct Sequence Spread Spectrum CDMA and Its Application in Congestion Control
Quantfyng Responsveness of TCP Aggregates by Usng Drect Sequence Spread Spectrum CDMA and Its Applcaton n Congeston Control Mehd Kalantar Department of Electrcal and Computer Engneerng Unversty of Maryland,
More information