Energy Harvesting Wireless Communications (Hardcover)

1 Introduction 1 1.1 Energy Harvesting Models and Constraints 1 1.2 Structure of the Book 3 Part I Energy Harvesting Wireless Transmission 5 2 Power Allocation for Point-to-Point Energy Harvesting Channels 7 2.1 A General Utility Optimization Framework for Point-to-Point EH Channels 8 2.2 Throughput Maximization for Gaussian Channel with EH Transmitter 9 2.2.1 The Case with Noncausal ESIT 10 2.2.1.1 Staircase Power Allocation to Problem (2.7) 10 2.2.1.2 Efficient Algorithm to Solve Problem (12.7) 11 2.2.2 The Case with Causal ESIT 15 2.2.2.1 Dynamic Programming 15 2.3 Throughput Maximization for Fading Channel with EH Transmitter 17 2.3.1 The Case with Noncausal CSIT and ESIT 18 2.3.1.1 Water-Filling Power Allocation 18 2.3.1.2 Staircase Water-Filling Power Allocation 19 2.3.1.3 Efficient Implementation of Staircase Water-Filling Algorithm 22 2.3.2 The Case with Causal CSIT and ESIT 23 2.3.2.1 Dynamic Programming 24 2.3.2.2 Heuristic Online Solutions 27 2.3.3 Other ESIT and CSIT Cases 27 2.4 Outage Probability Minimization with EH Transmitter 29 2.4.1 The Case with No CSIT and Noncausal ESIT 29 2.4.1.1 Properties of Outage Probability Function 30 2.4.1.2 Optimal Offline Power Allocation with M = 1 33 2.4.1.3 Suboptimal Power Allocation with M = 1 35 2.4.1.4 Optimal Power Allocation for the General Case of M 1 36 2.4.1.5 Suboptimal Offline Power Allocation with M 1 40 2.4.2 The Case with No CSIT and Causal ESIT 41 2.4.2.1 Optimal Online Power Allocation 42 2.4.2.2 Suboptimal Online Power Allocation 43 2.4.3 Numerical Results 44 2.4.3.1 The Case of M = 1 44 2.4.3.2 The Case of M 1 44 2.4.4 Other CSIT and ESIT Cases 47 2.5 Limited Battery Storage 48 2.5.1 Throughput Maximization over Gaussian Channel with Noncausal ESIT 48 2.5.2 Throughput Maximization over Fading Channels with Noncausal CSIT and ESIT 52 2.5.3 Other Cases 55 2.6 Imperfect Circuits 56 2.6.1 Practical Power Consumption for Wireless Transmitters 56 2.6.2 The Case with Noncausal ESIT 58 2.6.2.1 Problem Reformulation 59 2.6.2.2 Single-Block Case with M = 1 60 2.6.2.3 General Multi-Block Case with M = 1 61 2.6.3 The Case with Causal ESIT 64 2.7 Power Allocation with EH Receiver 66 2.7.1 Power Consumption Model for a Wireless Receiver 66 2.7.2 The Case with Only EH Receiver 68 2.7.3 The Case with Both EH Transmitter and EH Receiver 70 2.8 Summary 70 References 71 3 Power Allocation for Multi-node Energy Harvesting Channels 75 3.1 Multiple-Access Channels 75 3.1.1 System Model 75 3.1.2 Problem Formulation 76 3.1.3 The Optimal Offline Scheme 78 3.1.4 Optimal Sum Power Allocation 78 3.1.4.1 Optimal Rate Scheduling 80 3.1.5 The Online Scheme 84 3.1.5.1 Competitive Analysis 84 3.1.5.2 The Greedy Scheme 85 3.1.6 Numerical Results 87 3.2 Relay Channels 91 3.2.1 System Model 92 3.2.2 Problem Formulation 94 3.2.2.1 Delay-Constrained Case 94 3.2.2.2 No-Delay-Constrained Case 95 3.2.3 Optimal Solution for the Delay-Constrained Case 97 3.2.3.1 Monotonic Power Allocation 97 3.2.3.2 The Case with Direct Link 99 3.2.3.3 The Case Without Direct Link 104 3.2.4 Optimal Solution for the No-Delay-Constrained Case 106 3.2.4.1 Optimal Source Power Allocation 106 3.2.4.2 Optimal Relay Power Allocation 109 3.2.4.3 Optimal Rate Scheduling 111 3.2.4.4 Throughput Comparison: DC versus NDC 112 3.2.5 Numerical Results 113 3.3 Large Relay Networks 115 3.3.1 System Model and Assumptions 115 3.3.2 Average Throughput for Threshold-Based Transmissions 117 3.3.2.1 Threshold-Based Transmission 117 3.3.2.2 Markov Property of the Transmission Scheme 118 3.3.3 Transmission Threshold Optimization 120 3.3.3.1 Convexification via Randomization 120 3.3.3.2 State-DependentThreshold Optimization 122 3.3.3.3 State-Oblivious Transmission Threshold 123 3.3.4