Amplify-and-Forward Relaying in Wireless Communications (eBook)

Leonardo Jiménez Rodríguez, Nghi Tran, Tho Le-Ngoc (Autoren)

eBook Download: PDF

2015 | 2015
XIV, 122 Seiten
Springer International Publishing (Verlag)
978-3-319-17981-0 (ISBN)

Infos

This SpringerBrief explores the advantage of relaying techniques in addressing the increasing demand for high data rates and reliable services over the air. It demonstrates how to design cost-effective relay systems that provide high spectral efficiency and fully exploit the diversity of the relay channel. The brief covers advances in achievable rates, power allocation schemes, and error performance for half-duplex (HD) and full-duplex (FD) amplify-and-forward (AF) single-relay systems. The authors discuss the capacity and respective optimal power allocation for a wide range of HD protocols over static and fading channels. Then, optimal amplification coefficients in terms of achievable rate are presented. Chapters also examine performance with finite constellations, including the error and diversity performance. The brief concludes with a capacity and error performance analysis of the FD relay mode of operation, where the residual self-interference due to FD transmission is explicitly taken into account. Amplify-and-Forward Relaying in Wireless Communications reveals the benefits and challenges of relaying techniques. It is designed for researchers and professionals in wireless communication. This material is also appropriate for advanced-level students in electrical engineering and computer science.

Inhalt

Preface 8
Contents 10
Acronyms 14
1 Relaying: An Overview 16
1.1 Half-Duplex Relaying 16
1.2 Full-Duplex Relaying 18
1.3 Relay Functions 19
1.4 Organization of this Brief 20
1.5 Notation 21
References 22
2 Relay Protocols 25
2.1 General System Model 25
2.2 HD Protocols 26
2.2.1 NAF Protocol 26
2.2.2 DT Protocol 28
2.2.3 OAF Protocol 28
2.2.4 DHAF Protocol 29
2.2.5 TWAF Protocol 29
2.3 FD Protocols 30
2.3.1 LR Protocol 30
2.3.2 DHAF Protocol 32
2.4 Concluding Remarks 33
References 33
3 Half-Duplex AF Relaying: Capacity and Power Allocation Over Static Channels 35
3.1 Problem Formulation 36
3.2 Capacity Under Individual Power Constraints 37
3.3 Capacity Under Joint Power Constraints 42
3.4 High and Low Power Regions 45
3.4.1 Per-Node Power Constraints 45
3.4.1.1 High Source Power, Fixed Relay Power 45
3.4.1.2 High Relay Power, Fixed Source Power 45
3.4.1.3 High Source and Relay Power 46
3.4.1.4 Low Source and Relay Power 46
3.4.2 Global Power Constraint 46
3.4.2.1 High Global Power 47
3.4.2.2 Low Global Power 47
3.5 Illustrative Examples 47
3.5.1 Symmetric Network Model 48
3.5.2 Linear Network Model 49
3.6 Concluding Remarks 52
References 52
4 Half-Duplex AF Relaying: Achievable Rate and Power Allocation Over Fading Channels 54
4.1 Problem Formulation 55
4.2 Achievable Rates and Closed-Form Approximations 57
4.2.1 OW DHAF Systems 58
4.2.2 OW Cooperative Systems 60
4.2.3 TW Systems 62
4.2.4 Remarks 63
4.3 Optimal Power Allocation 64
4.3.1 DHAF Systems 65
4.3.2 Cooperative Systems 65
4.3.3 TW Systems 66
4.4 Closed-Form Solution for DHAF System with CI Coefficient 67
4.5 Illustrative Examples 68
4.5.1 Tightness of the Proposed Approximations 69
4.5.2 Optimal Power Allocation 70
4.6 Concluding Remarks 74
References 74
5 Half-Duplex AF Relaying: Adaptation Policies 76
5.1 Problem Formulation 77
5.2 Optimal Power Adaptation Schemes 78
5.2.1 OAF System 79
5.2.2 NAF System 80
5.2.3 TW System 83
5.3 Illustrative Examples 84
5.4 Concluding Remarks 86
References 86
6 Half-Duplex AF Relaying: Error Performance and Precoding 88
6.1 System Model 89
6.2 Performance Analysis 91
6.3 Diversity Benefits in Error-Floor Regions 94
6.3.1 Diversity and Coding Gain Functions 94
6.3.2 Optimal Class of Precoders 96
6.3.3 Design of Superposition Angles for IndependentMappings 98
6.4 Near-Capacity Design in Turbo Pinch-Off Areas 99
6.4.1 Multi-D Mapping in Precoded Multiple Cooperative Frames 100
6.4.2 EXIT Chart Analysis 101
6.5 Illustrative Examples 103
6.6 Concluding Remarks 105
References 106
7 Full-Duplex AF Relaying: Capacity Under ResidualSelf-Interference 107
7.1 Problem Formulation 108
7.2 Capacity and Optimal Power Allocation 109
7.3 Asymptotic Analysis 110
7.3.1 Large Source Power, Fixed Relay Power 110
7.3.2 Large Relay Power, Fixed Source Power 111
7.3.3 Large Source and Relay Power 111
7.3.4 Large Global Power 111
7.4 Illustrative Examples and Comparisons to HD Schemes 112
7.5 Concluding Remarks 114
References 114
8 Full-Duplex AF Relaying: Error Performance Under Residual Self-Interference 116
8.1 System Model 117
8.2 PEP Analysis and Tight BER Bounds 118
8.2.1 PEP for the LR System 119
8.2.2 PEP for the DH System 121
8.2.3 Tight BER Bounds of BICM-ID Systems 122
8.3 Diversity and Coding Gain Analysis 123
8.3.1 LR Analysis 123
8.3.1.1 Uncoded System 123
8.3.1.2 Coded System 125
8.3.2 DH Analysis 126
8.3.2.1 Uncoded System 127
8.3.2.2 Coded System 128
8.4 Illustrative Examples 128
8.4.1 LR Examples 128
8.4.2 DH Examples 130
8.5 Concluding Remarks 131
References 132

Produkt-Details

• Erscheint lt. Verlag: 22.5.2015
• Reihe/Serie: SpringerBriefs in Computer Science
• Reihe/Serie: SpringerBriefs in Computer Science
• Zusatzinfo: XIV, 122 p. 37 illus., 31 illus. in color.
• Verlagsort: Cham
• Sprache: englisch
• Themenwelt: Mathematik / Informatik ► Informatik ► Netzwerke
• Themenwelt: Mathematik / Informatik ► Informatik ► Web / Internet
• Themenwelt: Technik ► Nachrichtentechnik
• Schlagworte: Amplify-and-Forward • Capacity • Error performance • Full-Duplex • power allocation • Relay protocols • wireless communications
• ISBN-10: 3-319-17981-0 / 3319179810
• ISBN-13: 978-3-319-17981-0 / 9783319179810