Wireless Powered Communication Networks From Security Challenges to IoT Applications

This textbook introduces Wireless Powered Communication Networks (WPCNs) as a promising paradigm to overcome the energy bottleneck suffered by traditional wireless communication networks, as well as emerging Internet-of-Things networks.  It selectively spans a coherent spectrum of fundamental aspects in WPCNs, such as wireless energy transfer (WEH) techniques, radio frequency (RF) energy harvesting receiver model, simultaneous wireless information and power transfer (SWIPT), as well as the rate-energy tradeoff arising from the joint transmission of information and energy using the same waveform. It covers network models for WPCNs, including the baseline and dual-hop WPCN models and a variety of related extensions. This book further examines the key factors including throughput, fairness, and security that must be taken into account for impeccable operation of WPCNs. The new IoT applications are targeted as a key element in those factors. It will also include exercises and examples throughout the book, as well as their PLS solutions.

This is the first textbook examining the current research to provide a unified view of wireless power transfer (WPT) and information transmission in WPCNs from a physical layer security (PLS) perspective. Focused on designing efficient secure transmission schemes, analyzing energy evolvement process, and evaluating secrecy outage performance under different channel state information (CSI), the results presented in this book shed light on how to best balance security and throughput with prudent use of harvested energy in WCNs.  It also provides an overview of  the WPCNs by introducing the background of WPT, followed by a summary of the research conducted in the field.  The authors describe the physical-layer security (PLS) problem in WPCNs, including the causes and the impacts of the problem on the performance of WPCNs. The authors extend the discussions by introducing the applications of  WPCNs in the IoT.

From the Internet of Things (IoT) point of view, this textbook reviews the opportunities and challenges for the lately-emerged WPCN to seamlessly integrate into the IoT ecosystem. It specifically addresses the maximization problem of uplink and downlink sum-throughout in a dual-hop WPCN, while taking fairness among WPCN users as a constraint. The results provided in this book reveal valuable insights into improving the design and deployment of future WPCNs in the upcoming IoT environment.

This textbook targets advanced-level students studying wireless communications and research engineers working in this field. Industry engineers in mobile device and network development business with an interest in WPCNs and IoT, as well as their PLS solutions, will also find this book useful.

1.       Introduction to Wireless Powered Communication Networks

1.1.    Overview

1.1.1. Wireless Energy Transfer

1.2.    Simultaneous Wireless Information and Power Transfer

1.2.1. Rate-Energy Tradeoff

1.2.2. Receiver Architecture Design in SWIPT

1.3.    Wireless Powered Communication Networks

1.3.1. Baseline WPCN Model

1.3.2. Dual-Hop WPCN Model

1.4.    IoT Applications

1.4.1. The Internet of Things

1.4.2. Application Requirements of the IoT

1.4.3. Wireless Powered Communications for IoT

1.5.    Summary

References

2.       Enhancing Physical Layer Security in Wireless Powered Communication Networks

2.1.    Introduction to Physical Layer Security

2.2.    The State of The Art of PLS Schemes in WPCNs: A Signal Processing Perspective

2.3.    Accumulate-then-Transmit: Secure WPCN in the Presence of Multiple Eavesdroppers

2.3.1. System Model and Protocol Design

2.3.2. Battery State Analysis

2.3.3. Performance Evaluation

2.4.    Accumulate-and-Jam: Secure WPCN via A Wireless-Powered Full-Duplex Jammer

2.4.1. System Model and Protocol Design

2.4.2. Hybrid Energy Storage State Analysis

2.4.3. Performance Evaluation

2.4.4. Numerical Results

2.5.    Summary

References

3.       Extending Wireless Powered Communication Networks for Future Internet of Things

3.1.    Introduction to Internet of Things

3.2.    Throughput Maximization in DH-WPCN

3.2.1. Related Work

3.2.2. System Model

3.2.3. Throughput Maximization in Uplink and Downlink

3.3.    Fairness Enhancement in DH-WPCN

3.3.1. Related Work

3.3.2. System Model

3.3.3. Minimum Throughput Maximization

3.3.4. Numerical Results

3.4.    Summary

References

4.       Future Directions for Wireless Powered Communications

4.1.    New Application  Trends in IoT and Telecommunications Networks

4.2.    Future Research Directions

References

Abbas Jamalipour is the Professor of Ubiquitous Mobile Networking at the University of Sydney, Australia, and holds a PhD in Electrical Engineering from Nagoya University, Japan. He is a Fellow of the Institute of Electrical and Electronics Engineers (IEEE), the Institute of Electrical, Information, and Communication Engineers (IEICE), and the Institution of Engineers Australia; also an ACM Professional Member and an IEEE Distinguished Lecturer. He has authored nine technical books, eleven book chapters, over 450 technical papers, and five patents, all in the area of wireless and mobile communications. Dr. Jamalipour is an elected member of the Board of Governors, Executive Vice-President, Chair of Fellow Evaluation Committee, and the Editor-in-Chief of the Mobile World, of IEEE Vehicular Technology Society. He was the Editor-in-Chief IEEE Wireless Communications, Vice President-Conferences and a member of Board of Governors of the IEEE Communications Society, and has been an editor for several journals. He has been a General Chair or Technical Program Chair for a number of conferences, including IEEE ICC, GLOBECOM, WCNC and PIMRC. He is the recipient of a number of prestigious awards such as the 2016 IEEE ComSoc Distinguished Technical Achievement Award in Communications Switching and Routing, 2010 IEEE ComSoc Harold Sobol Award, the 2006 IEEE ComSoc Best Tutorial Paper Award, as well as 15 Best Paper Awards.

Ying Bi received the Ph.D. degree in Electrical Engineering from the University of Sydney, Australia. She is currently a Research Associate in the School of Electrical and Information Engineering at the University of Sydney. Her current research interests include wireless powered communications, physical layer security in wireless communications, cyber security in smart grid communication networks, and the applications of game theory and optimization theory in these areas. She was a recipient of Australian Postgraduate Award and Norman I Price Supplementary Scholarship.