CHAPTER 5: OBJECTIVES, METHODOLOGY, WORK & COMPARATIVE STUDY

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1 CHAPTER 5: OBJECTIVES, METHODOLOGY, WORK & COMPARATIVE STUDY 202

2 5.1 THE OBJECTIVES OF THE STUDY The aim is to make the thesis provides an overview of Bluetooth, ZigBee and in fact all over the world but the wireless connection. I am, the performance, the comparative study of technologies and how to do this, the work has evolved and developed, and the technical description. The present investigation can be carried out the following objectives. 1. The study of communication ZigBee wireless and Bluetooth technology. 2. In history, the Bluetooth technology and ZigBee current status. 3. During the test, the latest technology, wireless communications, mobile and wireless connection to India, the growth and performance. 4. Analyze the two technologies. 5. Proposes measures possible improvements in the quality of service, the system improve transparency. 5.2 THE CHOICE OF THE METHOD The study will focus on 2 different technologies. The proposed study and research. Analysis of the content and the proposals for the basis of its results are valid statistical tools, for example, the study, the rates, the rates of arithmetic averages, etc., where only if necessary, apply. Tables and graphs support the student to the study. The data for the study collected mainly in secondary sources including books, periodicals, newspapers, magazines, etc. 5.3 WORK PLAN In this research, the two technologies Bluetooth and ZigBee, this allows wireless communication. This is to discuss the details of wireless communication. 203

3 ZigBee, Bluetooth different parameters: 1. The researcher should know the Bluetooth and ZigBee. 2. We would like the Bluetooth technology and competing technologies the advantage or disadvantage of Bluetooth. 3. What distinguishes the two Bluetooth technology for the ZigBee and what are the effects of a performance 4. This research is also Bluetooth-enabled a large wireless network in a team. 5. This study, the way in which the Bluetooth and ZigBee, is much more secure if it is the other. 6. In the research work carried out it would be safer for the home network wireless ZigBee. 5.4 COMPARATIVE EXAMINATION OF PERFORMANCE PARAMETERS Bluetooth and ZigBee similar in many ways. These technologies and IEEE , WPAN standard wireless personal area networks. Are not the frequency of 2.4 GHz with low power consumption and low profile. Mr. BhupenderVirk, president and CEO of WPAN CompXs declared elements classification and technical differences are the Bluetooth (IEEE ) and ZigBee (IEEE ) wireless communications alliance in December February reinforced Silicon Valley. THE ZigBee protocols ensure that the type of sensor network and business applications, such as air conditioning, heating, lighting and control. IEEE , which shows that the physical and MAC layer protocol security, 204

4 Network and application layer, the ZigBee Alliance, the company technology companies. I think that now, in a world where there is a wireless electrical to escape from the walls. Bluetooth the principle of operation. This is the result of the electronic equipment and accessories such as and mobile phones, computers and printers. Bluetooth devices for users of the mobile phone or a laptop computer and the files are transferred, calendar entries, contacts, etc., the mobile user more short-term and the wiring is the main objective and great ZigBee automation and remote control. The first ZigBee products Virk during operation. He also believes that alliance with certified equipment in the third quarter, the necessary CompXs protocol analyzer. Finally, ZigBee industry reports show that in the mobile phones would be there at all that has accumulated in the remote control feature dual Bee-Bluetooth chip practically nothing we can do and to think that the purchase of the machine commercial or economic. 5.5 ZIGBEE DEVELOPMENT TOOLS AND BLUETOOTH The Zigzag Bee, Bluetooth ZigBee similar, but simpler, if a l - and, in most snoozes. ZigBee m to 10 m (Bluetooth power amp). Data transmission speed, ZigBee from 250 kb/s at 40kb/s 2.4 GHz 915 MHz and 20 kb/s 868 MHz while Bluetooth 1Mbit/s. ZigBee development tools base structure master-slave of a star network many used occasionally, even in small packets. This assigns 254. Bluetooth also rules of conduct more heterogeneous, with sounds, images and specifications of the file transmission networks. Bluetooth Accessories can disperse the network does not have syn c with the smaller networks (piconet). The slave station only 8 basic master -slave allowed Bluetooth piconet. In this case, the Bluetooth device wake up between 3 mp and response whereas ZigBee wake and package about 15 msec. 205

5 5.5.1 By a Comparison Test Table I summarizes the most important changes between the 2. Each protocol is connected to IEEE standard. Of course, Bluetooth and ZigBee. The Bluetooth and ZigBee was presumably the WPAN (about 10m). However, the ZigBee also has reached the 100m individual applications. Rated power is equal to zero dbm all Bluetooth and ZigBee, twenty km wifi. CriteriaforComparison Bluetooth ZigBee The IEEE standard The IEEE The IEEE Compliant Modulation GFSK/PSK. COMMUNICATION using BPSK w/ (868/915 MHz),OQPSK (2.4 GHZ) Number of RF channels 79 1/10.16 Standard Deviation FHSS DSSS Performance Hours Year Main window Piconet Star Simpler Medium Low Density. 255 Plus 7 Authentication Secret CBC-MAC Data protection 16-Bit CRC 16-Bit CRC Simple to use Medium Simple Delay Time >3 Sec One can see 15. Interference Large Low Encryption EO river encoders The AES block cipher The basic window Scatternet Net Frequency Band 2.4 GHz 2.4 GHz, 868MHz, 915MHz Antenna/HW Shared Independent Performance 100 MW 30 MW Power Consumption 40 Ma TX, standby 0.2 ma 30 Ma standby TX, 3 # & 956 as 206

6 ;The Aim is the life of the battery A few days most of the A few months at the minimum Range 10 M M Speed of data Frames 1-3 Mbps (Fast KB/s (slower & time - transmission growing) consuming) Cost. $3 $2 Network topology. The ad hoc, point-to-point, star Net, ad-hoc, star Security Uses 128-bit encryption Uses 128-bit encryption Max. The devices ,000 Added complexity and cost of setting up Complex and costly Simple and economical Primary focus Allows the user to the More than one case, the large-scale mobility & by eliminating remote control and the large-scale the need for cables and automation purposes wires The Ad-hoc contact In particular suitable for the Completely unsuitable for the ad-hoc, large files and data low-speed and network topology. Protocol stack size ~ 100+KB 4-32 KB Strength INTEROPERABILITY, cable replacement Long battery life, low-cost Application Wireless USB headset, Remote Control, battery-powered handset product, the sensors TABLE 5.1: BLUETOOTH AND ZIGBEE: A COMPARISON 207

7 The Procedure, the Bluetooth and ZigBee In Bluetooth and ZigBee 2.4 GHz band, so it should be. In essence, the Bluetooth frequency hopping offers the channel conflicts in order to avoid conflict. The IEEE the absence of interference the disadvantage and Bluetooth. In addition, if Sikora and Emilia Groza quantitative measurements of the shows and the ZigBee, Bluetooth, WI-FI, and ovens to microonde.akashuaib et al., Quantifying the risk of interference with the ZigBee and IEEE g for the detection of the effects of the IEEE g and the coexistent ZigBee devices selected. In fact, Neelakanta dams associated with performance analysis of a Bluetooth and ZigBee placement restrictions, if any, on equipment suitable for industrial flooring plant strong wireless communication RF Channels Bluetooth and wifi and ZigBee protocols spread spectrum technique in 2.4GHz band, which in most countries is not permitted and is the industrial, scientific, and medical (ISM) band. Use the Bluetooth frequency hopping FHSS (79 channels) and 1 MHz bandwidth, ZigBee uses direct sequence spread spectrum (DSSS) 16 channels and 2 MHz bandwidth. Wifi uses direct sequence spread spectrum ( ), an additional code to be entered (CCK, b), OFDM modulation (802.11a/g) to 14 RF channels (11.13, and 1 in Japan and 22 MHz bandwidth. THE UWB and x GHz, and locked to a standard methods, of which two bandits, the DS-UWB and MB-OFDM, are available When You Have Lived With Structure In Bluetooth and ZigBee 2.4GHz band, the existence must be treated. In essence, the Bluetooth Adaptive Frequency hopping) to avoid channel conflict, while ZigBee dynamic frequency selection and performance management.the IEEE the interference problem with the Bluetooth. 208

8 In addition, if Emilia GrozaSikora and quantitative measurement of exposures ZigBee, Bluetooth coexistence aka Shuaib et al., Quantify the potential for interference of ZigBee and g of the scope of the g and ZigBee devices CO-existing a given environment. In fact, Neelakanta Dams presented and evaluating the performance of the Bluetooth and ZigBee placement restrictions, if any, equipment suitable for industrial flooring robust wireless communication with the factory Length of Network The greatest happiness for the tools to build a network of eight (7 main secondary and a Bluetooth piconet, more than 65,000 the ZigBee, and in 2007 is structured lan. The protocol is a more complex network structures individual cells base scatternet: Bluetooth is the cluster tree or mesh network in ZigBee Security The two protocols, encryption and authentication mechanisms. Use the Bluetooth technology E0 stream cipher secret and 16-bit cyclic redundancy check (CRC), ZigBee adopt coding advanced daily (AES) encryption and the counter mode (CTR) and cipher block chaining message authentication code (CBC -MAC), and also of the CBC-MAC- CTR name (CC), the 32 and 16 bit The communication application in time The co-ordinated universal time depends on the speed, the distance between the size of the message, and then the nodes 2. According to the following formula universal coordinated time (μs) a wide range are separated. Ttx (= cost \N \N for printer + (cost \N \N for printer / NmaxPld Novhd)) X Tb +Tprop (1), 209

9 If n is that the knowledge more useful NmaxPldNovhd dimensions, and that his head is that the Tb Tprop a little, and the propagation time for 2. For the sake of simplicity, the propagation time is insignificant on paper. The normal parameters of 2 wireless protocols, the universal time coordinated measurement analysis listed in the table. And the universal time coordinated for ZigBee more than others because of lower than the data rate (250 Kbit/s), while UWB requires less universal time coordinated with respect to the other. Of course, the result is also shown to coordinated universal time is not inversely proportional to the length and disproportionately useful information. Figure 5.1: Comparison of the Transmission Time With Respect To the Size of the Data. 210

10 The Efficiency of the Coding Of the Data The paper, the secret writing power is also the quantitative data related to the size of the message (i.e., the size of the and the full range of bytes which transmits the data). The formula is a secret writing efficiency (%) in the colors of his Shere Khan, the delineating PcodEff = cost \N \N for printer / (accounting \N \N for printer + (cost \N \N for printer / NmaxPld Novhd)) 2. Table parameter is the secret writing efficacy judgment. The figure shows the data. The three secret writing 2 of wireless networks, and the size.the small information smaller size (339 bytes), Bluetooth, the best solution. One of the spectacles of ZigBee honest the size must be less than 102 bytes. The giant size information, Bluetooth is also much better for over ninety four, in contrast with the seventy six.52 % ZigBee (where the data of the 10 k bytes listed in table 5.2). The figure to eliminate the impedance discontinuity can be avoided through a variety of two and three caused by information, i.e. the most useful information, 339 and 102 bytes of Bluetooth and ZigBee are jointly and severally liable. YOU lan infrastructure mode, almost all of the access points to the connection with the LAN networks, and in this way, the size of the more useful LAN 1,500 bytes. If, however, a general comparison, the amount and ad-hoc mode and also the 2312 bytes, which during the writing. Networks of wireless sensors for automation of the mill, while most of the information for the shopping area and management are generally small in size (e.g., the temperature data for the associated degrees respect for the environment, but perhaps four bytes), Bluetooth and ZigBee protocols are honest (the secret knowledge of writing efficiency objective) despite the fact that slow. 211

11 The Protocol The paper, as regards the complexness protocol that supports all the primitives and the number of events. The MAC/PHY, however, the Bluetooth kit Consumer service access (SAP), HCL SAP, synchronous connection oriented (SCO) and SAP, and logical adaptation protocol (L2CAP) primitives. IT IS shown in the figure. Since, Bluetooth 5.2, the more complex protocol primitives and 188 events. The second is that the simple and only forty eight primitives for the ZigBee This variety of complete set of only a quarter and the events primitives and Bluetooth.Compared to Bluetooth, ZigBee for convenience and very appropriate sensor network applications because of memory limitations and performance of the machine. Figure 5.2: Comparison of the Complexity of Each Protocol. 212

12 Supply Uses Bluetooth and ZigBee and displacement, short and limited. It is very little influence the consumption, and in some cases not specifically affect the life of the battery. UWB designed short and high ratio. In this way, the consumption of many compare in four wireless products, that complicated characteristics in the public area available in short conferred on the associate unit for example, the chipset2 together in Cambridge, solid-state Radio (CSR), XS110 the scale, the CC2430 : Former Chipcon Texas Instruments (TI), and of the Conexant CX53111 (formerly Intersil Prism sales). The current consumption of transmit (TX) and receiver (RX) conditions in the area for each protocol shown in table 5.2. The information Area showed an explicit, territorial unit representative samples, as the same type of case. Figure 5.3 indicates that the structure and mw consumption all protocols. Observable, the Bluetooth and ZigBee protocols consume less power. Standard Bluetooth ZigBee Transfer Speed 0.72 Mb/s From 0.25 Mb/s Chipset Blue Base2 CC2430 size TX Today 57 Today fraction equal to 24.7 RX Today 47 Today, 27 VDD 1.8 V 3.0 V Table 5.2: Present Uses Chipset for Each Protocol 213

13 Figure 5.3: Comparison of the Normalized Energy Consumption for Each Protocol. The protocols at the network layer, however, is strongly influenced by common sense that the various factors, such as network reliability, performance, the chipset, recovery mechanism, and the installation should be to think about the future. 214

14 Figure 5.4: Comparison of the Data Coding Efficiency With Respect To the Size of the Data. 215

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