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Autor: Carla-Fabiana Chiasserini
ISBN-13: 9781119307730
Einband: E-Book
Seiten: 150
Sprache: Englisch
eBook Typ: PDF
eBook Format: E-Book
Kopierschutz: Adobe DRM [Hard-DRM]
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Analytical Modeling of Wireless Communication Systems

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Wireless networks represent an inexpensive and convenient way to connect to the Internet. However, despite their applications across several technologies, one challenge still remains: to understand the behavior of wireless sensor networks and assess their performance in large-scale scenarios.
When a large number of network nodes need to interact, developing suitable analytical models is essential to ensure the appropriate coverage and throughput of these networks and to enhance user mobility. This is intrinsically difficult due to the size and number of different network nodes and users.

This book highlights some examples which show how this problem can be overcome with the use of different techniques. An intensive parameter analysis shows the reader how to the exploit analytical models for an effective development and management of different types of wireless networks.
Preface ix

Introduction xi

List of Acronyms xv

Part 1. Sensor Networks 1

Chapter 1. Fluid Models and Energy Issues 3

1.1. The fluid-based approach 4

1.1.1. Sensor density and traffic generation 5

1.1.2. Data routing 5

1.1.3. Local and relay traffic rates 6

1.1.4. Channel contention and data transmission 6

1.1.5. Mean packet delivery delay 7

1.1.6. Sensor active/sleep behavior 7

1.2. Network scenario 7

1.3. The sensor network model 11

1.3.1. A minimum energy routing strategy: computing u(r:r) 11

1.3.2. Channel contention and data transmission: computing s(r) and PR(r) 17

1.3.3. Mean packet delivery delay: computing q(r) 22

1.4. Results 24

1.4.1. Model validation 25

1.4.2. Model exploitation 28

1.4.3. Model solution complexity and accuracy 35

Chapter 2. Hybrid Automata for Transient Delay Analysis 37

2.1. Event detection in WSNs 37

2.1.1. The 802.15.4 MAC protocol 39

2.2. Model for single-hop network topologies 40

2.2.1. Single message transfer 40

2.2.2. Multiple message transfers 43

2.3. Solution technique 44

2.3.1. Time discretization 44

2.3.2. Transient solution 46

2.3.3. Performance metrics computation 49

2.4. Model for multi-hop network topologies 50

2.5. Model validation and exploitation results 52

2.6. Discussion 57

Part 2. Vehicular Networks 59

Chapter 3. Safety Message Broadcasting 61

3.1. System description 62

3.2. Dissemination of safety messages 63

3.2.1. The spatial differentiation approach 63

3.2.2. The safety application 64

3.3. Assumptions and notations 65

3.4. Model outline 66

3.5. Computation of the block probability 67

3.6. Computation of the probability of first reception 69

3.6.1. A Gaussian approximation to the transient system behavior 73

3.7. Performance evaluation 77

3.7.1. The impact of power capture 77

3.7.2. The case of occupation probability rho = 1 79

3.7.3. The case of homogeneous occupation probability rho < 1 80

3.7.4. The case of inhomogeneous occupation probability 83

3.7.5. The impact of the forwarding policy 85

Chapter 4. Modeling Information Sharing 89

4.1. System scenario 89

4.2. Modeling information exchange in IVN 90

4.2.1. Model description 91

4.3. Computation of the probability of successful information retrieval 93

4.4. Model validation and exploitation 98

Part 3. Cellular Networks 103

Chapter 5. Multi-RAT Algorithms 105

5.1. RAT network 106

5.1.1. Scenario 107

5.1.2. RAT selection strategy 108

5.2. Network model 109

5.2.1. Functional rates 110

5.3. Model solution 115

5.3.1. Analytical approach 115

5.3.2. Computation of performance metrics 117

5.4. Performance evaluation 118

5.4.1. Setting and results 119

Bibliography 123

Index 127

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Autor: Carla-Fabiana Chiasserini
ISBN-13 :: 9781119307730
ISBN: 1119307732
Verlag: John Wiley & Sons
Seiten: 150
Sprache: Englisch
Auflage 1. Auflage
Sonstiges: Ebook