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.
