Resource Allocation in OFDM Based Wireless Relay Networks ...

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List of Figures 1.1 Two hop relay transmission . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 The OFDM symbol with cyclic prefix. . . . . . . . . . . . . . . . . . 4 1.3 OFDM transceiver: block diagram . . . . . . . . . . . . . . . . . . . . 5 1.4 Organization of the thesis. . . . . . . . . . . . . . . . . . . . . . . . . 13 2.1 Multi-user single relay uplink system model with M = 4 and K = 8. (Dashed lines show the pairing over two-hops) . . . . . . . . . . . . . 19 2.2 Multi-user multi-relay uplink system model. . . . . . . . . . . . . . . 32 2.3 Rate versus SNR for M = 10 and N = 1. . . . . . . . . . . . . . . . . 37 2.4 Throughput versus the number of users for N = 1. . . . . . . . . . . 38 2.5 Throughput versus SNR for M = 10 and N = 5. . . . . . . . . . . . . 39 2.6 Throughput versus the number of users for N = 5. . . . . . . . . . . . 40 2.7 Throughput versus the number of relays for M = 6. . . . . . . . . . . 41 2.8 Throughput versus the number of users and the number of relays for JntSol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.1 Bidirectional communication with OWRN. . . . . . . . . . . . . . . . 44 3.2 Bidirectional communication with TWRN. . . . . . . . . . . . . . . . 45 3.3 System model for an OFMDA aided multi-user TWRN. . . . . . . . . 48 3.4 Throughput versus SNR for M = 10. . . . . . . . . . . . . . . . . . . 58 3.5 Throughput versus the number of users at SNR= 10 dB. . . . . . . . 59 3.6 Throughput versus SNR under anti-symmetric channels for M = 2 and M = 10, respectively. . . . . . . . . . . . . . . . . . . . . . . . . 60 ix
List of Figures 4.1 System model for dual hop parallel relay network. . . . . . . . . . . . 64 4.2 Throughput versus SNR for N = 10. . . . . . . . . . . . . . . . . . . 77 4.3 Convergence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 4.4 Rate versus SNR with orthogonal transmission. . . . . . . . . . . . . 80 4.5 Rate versus SNR with relay selection scheme. . . . . . . . . . . . . . 81 5.1 A typical sensor network . . . . . . . . . . . . . . . . . . . . . . . . . 83 5.2 Linear multi-hop network . . . . . . . . . . . . . . . . . . . . . . . . 84 5.3 System model of AF-DF alternating relay network . . . . . . . . . . . 85 5.4 Lifetime convergence . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 5.5 Lifetime vs R-Req . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 5.6 Lifetime vs SNR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 x
Page 1 and 2: Resource Allocation in OFDM Based W
Page 3 and 4: Dedications: To my family
Page 5 and 6: Acknowledgment I am greatly thankfu
Page 7 and 8: Contents 2.3.3 Proposed Low-Complex
Page 9 and 10: Abstract The combination of relay t
Page 11: List of Tables 3.1 Complexity compa
Page 15 and 16: List of Acronyms IEEE MU RS AWGN OW
Page 17 and 18: 1.1 Overview of Relay Networks wire
Page 19 and 20: 1.2 Overview of OFDM Figure 1.2: Th
Page 21 and 22: 1.3 Basics of the Optimization Theo
Page 23 and 24: 1.3 Basics of the Optimization Theo
Page 25 and 26: 1.4 Resource Allocation Problem is
Page 27 and 28: 1.5 Contribution and Organization o
Page 29 and 30: 1.5 Contribution and Organization o
Page 31 and 32: 2.1 Introduction allocated to a nod
Page 33 and 34: 2.1 Introduction The main contribut
Page 35 and 36: 2.2 System Model where h m,k denote
Page 37 and 38: 2.3 Resource Allocation Schemes opt
Page 39 and 40: 2.3 Resource Allocation Schemes ( )
Page 41 and 42: 2.3 Resource Allocation Schemes and
Page 43 and 44: 2.3 Resource Allocation Schemes tha
Page 45 and 46: 2.3 Resource Allocation Schemes 2.3
Page 47 and 48: 2.4 Generalization to Multiple Rela
Page 49 and 50: 2.4 Generalization to Multiple Rela
Page 51 and 52: 2.5 Simulation Results • OptSol/J
Page 53 and 54: 2.5 Simulation Results 0.9 0.85 0.8
Page 55 and 56: 2.6 Summary 2.6 2.4 2.2 2 Rate (bit
Page 57 and 58: 2.6 Summary 2.4 2.2 2 1.8 N=4 N=3 N
Page 59 and 60: 3.1 Introduction A new technology c
Page 61 and 62: 3.1 Introduction • Broadcast Phas
Page 63 and 64:
3.2 System Model MU MU 3 8 A 1 2 7
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3.4 Joint Resource Allocation Schem
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3.4 Joint Resource Allocation Schem
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3.5 Step-Wise Low-Complexity Resour
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3.6 Simulation Results and SNR B m,
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3.6 Simulation Results 3 2.5 2 Uppe
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3.7 Summary 1.8 1.6 1.4 JntOpt SubO
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4.1 Introduction • Non-orthogonal
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4.3 Cooperative Non-Orthogonal Tran
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Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
4.4 Optimization under Orthogonal T
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4.4 Optimization under Orthogonal T
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4.5 Simulations Then, the over all
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4.5 Simulations 40 30 20 Sum−ρ S
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4.6 Summary 0.9 0.8 0.7 JPSC Pow EP
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Chapter 5 Lifetime Maximization in
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5.1 Introduction Figure 5.2: Linear
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5.2 System Model antenna that canno
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5.4 Lifetime Maximization Scheme 5.
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5.4 Lifetime Maximization Scheme wh
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5.5 Simulation Results 150 OPT−SO
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5.6 Summary Lifetime (S) 150 100 50
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Chapter 6 Resource Allocation in Co
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7. Conclusions were considered for
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Bibliography [12] A. Peled, and A.
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Bibliography [36] Z. Luo and S. Zha
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Bibliography [61] D. H. N. Nguyen,
Page 121 and 122:
Bibliography [84] A. Goldsmith, S.
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Bibliography [105] Y. Li, W. Wang,
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Appendix A Derivations of Closed-Fo
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B. Derivations of the Optimal Power
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