Performance Analysis of Low-power MAC Protocols for Wireless Body Area Network

Title
Performance Analysis of Low-power MAC Protocols for Wireless Body Area Network
Authors
사나울라
Keywords
performanceanalysisoflowpowermacprotocolsforwirelessbodyareanetwork
Issue Date
2011
Publisher
인하대학교
Abstract
The seamless integration of low-power, miniaturised, and lightweight sensor nodes in or around a human body has contributed to the development of a proactive Wireless Body Area Network (WBAN). WBAN promises ambulatory health monitoring of a patient for a long period of time with real-time updates to the physician. It can be widely used for ubiquitous healthcare, entertainment, and military applications. In this dissertation, we first review the key aspects of WBAN for numerous applications including the fundamental architecture. Then we present a comprehensive survey of existing low-power MAC protocols for WBAN with emphasis on their strengths and weaknesses. In addition, a useful case study of low-power MAC protocols is presented for WBAN using Network Simulator 2 (NS-2). The case study identifies the shortcomings of existing MAC protocols and thereby recommends the development of a novel low-power MAC protocol for WBAN. We therefore introduce a Traffic-adaptive MAC (TaMAC) protocol for WBAN that accommodates normal, emergency, and on-demand traffic in a reliable manner. The TaMAC protocol uses a traffic-based wakeup mechanism for normal traffic and a wakeup radio mechanism for emergency and on-demand traffic. Analytical approximations are presented for each mechanism. The protocol is simulated in NS-2 for normal, emergency, and on-demand traffic. We compare the performance of TaMAC protocol with beacon-enabled IEEE 802.15.4 MAC protocol in terms of power consumption, delay, and throughput. It is concluded that the TaMAC protocol outperforms beacon-enabled IEEE 802.15.4 MAC protocol in all scenarios, and is proved to be a suitable protocol for WBAN. We further studied the throughput and delay performance of the new IEEE 802.15.6 standard on WBAN. We present numerical formulas to determine the maximum throughput and minimum delay limits of IEEE 802.15.6 for an ideal channel with no transmission errors. These limits are derived for different frequency bands and
Description
1 Introduction 2 1.1 Background 2 1.2 Motivation 3 1.3 Contribution 4 1.4 Organization 6 2 An Overview of Wireless Body Area Network 7 2.1 Introduction 7 2.2 WSN vs. WBAN 9 2.3 WBAN architecture 11 2.4 Hardware Devices 13 2.5 WBAN Applications 15 2.5.1 Cardiovascular Diseases 16 2.5.2 Cancer Detection 16 2.5.3 Asthma 17 2.5.4 Diabetes . 17 2.5.5 Telemedicine Systems 17 2.5.6 Artificial Retina 17 2.5.7 Battlefield 18 2.6 Current Projects 18 2.6.1 CodeBlue 19 2.6.2 MobiHealth 19 2.6.3 HipGuard System 19 2.6.4 UbiMon 20 2.6.5 LifeShirt 21 2.6.6 IEEE 802.15.6 21 2.7 Summary 21 3 Medium Access Control Protocols for WBAN 22 3.1 Introduction 22 3.2 WBAN MAC Requirements 24 3.3 Existing/Proposed MAC Protocols for WBAN 27 3.3.1 IEEE 802.15.4 27 3.3.2 Heartbeat Driven MAC (H-MAC) Protocol 30 3.3.3 Reservation-based Dynamic TDMA (DTDMA) Protocol 31 3.3.4 Battery-aware TDMA Protocol 33 3.3.5 Energy-efficient TDMA-based MAC Protocol 34 3.4 Low-power Mechanisms in WBAN 36 3.4.1 Low Power Listening 36 3.4.2 Contention and Scheduled-contention 37 3.4.3 TDMA 38 3.4.4 Comparison of Low-power Mechanisms for WBAN 38 3.5 Acase Study of IEEE 802.15.4, PB-TDMA, andSMAC Protocols 40 3.5.1 Preamble-based TDMA Protocol 40 3.5.2 Simulation Setup 41 3.5.3 Simulation Results 44 3.6 Summary 46 4 A Traffic-adaptive MAC Protocol for WBAN 48 4.1 Introduction 48 4.2 Traffic Classification 49 4.2.1 Normal Traffic 50 4.2.2 Emergency Traffic 50 4.2.3 On-demand Traffic 51 4.3 Protocol Description 51 4.3.1 Superframe Structure 52 4.3.2 Channel Access Mechanisms 53 4.3.3 TaMAC Frame Format 63 4.4 Performance Analysis of TaMAC Protocol 64 4.4.1 Performance Analysis for Normal Traffic 64 4.4.2 Performance Analysis for Emergency Traffic 66 4.4.3 Performance Analysis for On-demand Traffic 72 4.5 Simulation Environment and Results 72 4.5.1 Network Simulator 2 (NS-2
URI
http://dspace.inha.ac.kr/handle/10505/22322
Appears in Collections:
College of Engineering(공과대학) > Graduate School of IT & Telecommunications (정보통신대학원) > Theses(정보통신대학원 석박사 학위논문)
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