Includes bibliographical references (p. [303]-309) and index.

-- About the Series Editors xi -- List of Figures xiii -- List of Tables xvii -- Preface xix -- Part I WPANS and 802.15.4 1 -- 1 Prologue: Wireless Personal Area Networks 3 -- 1.1 Wireless Ad Hoc Networks 3 -- 1.2 Design Goals for the MAC Protocol 4 -- 1.3 Classification of MAC Protocols for Ad Hoc Networks 6 -- 1.4 Contention-Based MAC Protocols 9 -- 1.5 New Kinds of Ad Hoc Networks 12 -- 1.6 Sensor Networks 12 -- 2 Operation of the IEEE 802.15.4 Network 17 -- 2.1 Physical Layer Characteristics 17 -- 2.2 Star Topology and Beacon Enabled Operation 20 -- 2.3 Slotted CSMA-CA Medium Access 22 -- 2.4 Acknowledging Successful Transmissions 24 -- 2.5 Downlink Communication in Beacon Enabled Mode 25 -- 2.6 Guaranteed Time Slots 28 -- 2.7 Peer-to-Peer Topology and Non-Beacon Enabled Operation 29 -- 2.8 Device Functionality and Cluster Formation 31 -- 2.9 Format of the PHY and MAC frames 35 -- Part II Single-Cluster Networks 39 -- 3 Cluster with Uplink Traffic 41 -- 3.1 The System Model / Preliminaries 41 -- 3.2 Superframe with an Active Period Only 44 -- 3.3 Superframe with Both Active and Inactive Periods 51 -- 3.4 Probability Distribution of the Packet Service Time 57 -- 3.5 Probability Distribution of the Queue Length 59 -- 3.6 Access Delay 61 -- 3.7 Performance Results 65 -- 4 Cluster with Uplink and Downlink Traffic 71 -- 4.1 The System Model 71 -- 4.2 Modeling the Behavior of the Medium 84 -- 4.3 Probability Distribution for the Packet Service Time 86 -- 4.4 Performance of the Cluster with Bidirectional Traffic 91 -- 5 MAC Layer Performance Limitations 95 -- 5.1 Congestion of Packets Deferred to the Next Superframe 95 -- 5.2 Congestion after the Inactive Period 98 -- 5.3 Congestion of Uplink Data Requests 99 -- 5.4 Blocking of Uplink Data and Data Requests 100 -- 5.5 Possible Remedies 102 -- 6 Activity Management through Bernoulli Scheduling 111 -- 6.1 The Need for Activity Management 111 -- 6.2 Analysis of Activity Management 112 -- 6.3 Analysis of the Impact of MAC and PHY Layers 116.

6.4 Controlling the Event Sensing Reliability 121 -- 6.5 Activity Management Policy 123 -- 7 Admission Control Issues 131 -- 7.1 The Need for Admission Control 131 -- 7.2 Performance under Asymmetric Packet Arrival Rates 133 -- 7.3 Calculating the Admission Condition 135 -- 7.4 Performance of Admission Control 139 -- Part II Summary and Further Reading 143 -- Part IIIMulti-cluster Networks 145 -- 8 Cluster Interconnection with Master-Slave Bridges 147 -- 8.1 Analysis of Bridge Operation 149 -- 8.2 Markov Chain Model for a Single Node 158 -- 8.3 Performance of the Network 165 -- 8.4 Network with a Single Source Cluster/Bridge 166 -- 8.5 Network with Two Source Clusters/Bridges 173 -- 8.6 Modeling the Transmission Medium and Packet Service Times 179 -- 9 Equalization of Cluster Lifetimes 187 -- 9.1 Modeling the Clusters 187 -- 9.2 Distributed Activity Management 190 -- 9.3 Energy Consumption in Interconnected Clusters 194 -- 9.4 Performance of Activity Management 198 -- 10 Cluster Interconnection with Slave-Slave Bridges 203 -- 10.1 Operation of the SS Bridge 205 -- 10.2 Markov Chain Model for the SS Bridge 217 -- 10.3 Markov Chain for Non-Bridge Nodes 224 -- 10.4 Performance Evaluation 230 -- 10.5 To Acknowledge or Not To Acknowledge: The CSMA-CA Bridge 231 -- 10.6 Thou Shalt Not Acknowledge: The GTS Bridge 234 -- 10.7 Modeling the Transmission Medium and Packet Service Times 240 -- Part III Summary and Further Reading 251 -- Part IV Security 253 -- 11 Security in 802.15.4 Specification 255 -- 11.1 Security Services 256 -- 11.2 Auxiliary Security Header 257 -- 11.3 Securing and Unsecuring Frames 258 -- 11.4 Attacks 260 -- 12 The Cost of Secure and Reliable Sensing 265 -- 12.1 Analytical Model of a Generic Key Update Algorithm 267 -- 12.2 Analysis of the Node Buffer 273 -- 12.3 Success Probabilities 276 -- 12.4 Key Update in a Multi-Cluster Network 278 -- 12.5 Cluster Lifetime 280 -- 12.6 Evaluation of Lifetimes and Populations 283 -- Part IV Summary and Further Reading 287.

Appendices 289 -- Appendix A An Overview of ZigBee 291 -- A.1 ZigBee Functionality 291 -- A.2 Device Roles 292 -- A.3 Network Topologies and Routing 293 -- A.4 Security 295 -- Appendix B Probability Generating Functions and Laplace Transforms 301 -- Bibliography 302 -- Index 311.

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Wireless Personal Area Networks provides an in-depth analysis of the recent IEEE 802.15.4 standard for low data rate wireless personal area networks (LR-WPANs), including suggestions to improve performance and comparisons with the related 802.15.1 (Bluetooth) standard. It assesses the suitability of the standard for the development and deployment of wireless sensor networks as well as providing guidance and insight into the relative advantages and disadvantages of various performance solutions. Wireless Personal Area Networks: . Provides a comprehensive, in-depth look at the issues surrounding WPAN network operation and performance.. Investigates multi-cluster networks and compares how they can be implemented.. Analyzes the performance of a single cluster under different traffic and power management regimes including uplink vs. downlink traffic, acknowledged vs. unacknowledged traffic, saturation vs. non-saturation, and the like.. Discusses security issues in WPANs such as different security threats, their impact on performance, standard security mechanisms, and security policies.. Compares the IEEE 802.15.4 standard with the related Bluetooth IEEE 802.15.1 standard in terms of suitability for implementing wireless sensor networks. This reference is a valuable tool for developers and researchers getting acquainted with various aspects of IEEE 802.15.4 technology. Graduate students studying courses such as Performance Evaluation, Wireless Sensor Networks and Queuing Theory will also find this book very insightful.

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