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Simultaneous wireless information and power transfer (SWIPT) provides a promising solution for enabling perpetual wireless networks. As energy efficiency (EE) is an im- portant evaluation of system performance, this thesis studies…

信息论 · 计算机科学 2015-04-10 Shiyang Leng

Wireless power transfer (WPT) is a viable source of energy for wirelessly powered communication networks (WPCNs). In this paper, we first consider WPT from an energy access point (E-AP) to multiple energy receivers (E-Rs) to obtain the…

In this paper, we study resource allocation algorithm design for power efficient secure communication with simultaneous wireless information and power transfer (WIPT) in multiuser communication systems. In particular, we focus on power…

信息论 · 计算机科学 2014-02-25 Shiyang Leng , Derrick Wing Kwan Ng , Robert Schober

Fluid antenna multiple access (FAMA) is capable of exploiting the high spatial diversity of wireless channels to mitigate multi-user interference via flexible port switching, which achieves a better performance than traditional…

信息论 · 计算机科学 2024-02-08 Xiao Lin , Halvin Yang , Yizhe Zhao , Jie Hu , Kai-Kit Wong

This work investigates the energy-efficient resource allocation for layered-division multiplexing (LDM) based non-orthogonal multicast and unicast transmission in cell-free massive multiple-input multiple-output (MIMO) systems, where each…

信息论 · 计算机科学 2020-07-21 Fangqing Tan , Peiran Wu , Yik-Chung Wu , Minghua Xia

Radio frequency (RF) signals can be relied upon for conventional wireless information transfer (WIT) and for challenging wireless power transfer (WPT), which triggers the significant research interest in the topic of simultaneous wireless…

信号处理 · 电气工程与系统科学 2020-02-21 Yizhe Zhao , Jie Hu , Zhiguo Ding , Kun Yang

A Unmanned aerial vehicle (UAV)-assisted mobile edge computing (MEC) scheme with simultaneous wireless information and power transfer (SWIPT) is proposed in this paper. Unlike existing MEC-WPT schemes that disregard the downlink period for…

信号处理 · 电气工程与系统科学 2024-03-07 Xiaoyan Hu , Pengle Wen , Han Xiao , Wenjie Wang , Kai-Kit Wong

We consider a point-to-point multiple-input-single-output (MISO) system where a receiver harvests energy from a wireless power transmitter to power itself for various applications. The transmitter performs energy beamforming by using an…

信息论 · 计算机科学 2016-11-17 Gang Yang , Chin Keong Ho , Yong Liang Guan

This paper studies a new unmanned aerial vehicle (UAV)-enabled wireless power transfer (WPT) system, where a UAV-mounted mobile energy transmitter (ET) is dispatched to deliver wireless energy to a set of on-ground energy receivers (ERs).…

信息论 · 计算机科学 2017-09-25 Jie Xu , Yong Zeng , Rui Zhang

This paper considers max-min fairness for wireless energy transfer in a downlink multiuser communication system. Our resource allocation design maximizes the minimum harvested energy among multiple multiple-antenna energy harvesting…

信息论 · 计算机科学 2014-04-08 Derrick Wing Kwan Ng , Robert Schober

In this paper, throughput and energy efficiency of cognitive multiple-input multiple-output (MIMO) systems operating under quality-of-service (QoS) constraints, interference limitations, and imperfect channel sensing, are studied. It is…

信息论 · 计算机科学 2013-08-22 Sami Akin , Mustafa Cenk Gursoy

In this paper, we consider a wireless powered multi-relay network in which a multi-antenna hybrid access point underlaying a cellular system transmits information to distant receivers. Multiple relays capable of energy harvesting are…

信息论 · 计算机科学 2018-10-23 Jing Xu , Yuze Zou , Shimin Gong , Lin Gao , Dusit Niyato , Wenqing Cheng

Non-orthogonal multiple access (NOMA) has been recently considered in millimeter-wave (mmWave) massive MIMO systems to further enhance the spectrum efficiency. In addition, simultaneous wireless information and power transfer (SWIPT) is a…

信息论 · 计算机科学 2018-09-21 Linglong Dai , Bichai Wang , Mugen Peng , Shanzhi Chen

Wireless charging is a promising way to power wireless nodes' transmissions. This paper considers new dual-function access points (APs) which are able to support the energy/information transmission to/from wireless nodes. We focus on a…

信息论 · 计算机科学 2016-11-18 Yue Ling Che , Lingjie Duan , Rui Zhang

The problems of energy harvesting in wireless com- munication systems have recently drawn much attention. In this paper, we focus on the investigation of energy harvesting maximization (EHM) in the important secrecy multi-input multi-…

信息论 · 计算机科学 2016-01-15 Wei Wu , Xueqi Zhang , Baoyun Wang

This letter studies a multi-antenna wireless powered communication (WPC) system with co-channel energy and information transfer, where a wireless device (WD), powered up by wireless energy transfer (WET) from an energy transmitter (ET),…

信息论 · 计算机科学 2015-10-23 Yueling Che , Jie Xu , Lingjie Duan , Rui Zhang

In this paper, we provide an overview of the recent advances in microwave-enabled wireless energy transfer (WET) technologies and their applications in wireless communications. Specifically, we divide our discussions into three parts.…

网络与互联网体系结构 · 计算机科学 2014-07-03 Suzhi Bi , Chin Keong Ho , Rui Zhang

In this paper, we study a massive multiple-input multiple-output (mMIMO) relay network where multiple source-destination pairs exchange information through a common relay equipped with a massive antenna array. The source users perform…

信号处理 · 电气工程与系统科学 2020-02-17 Samira Rahimian , Yindi Jing , Masoud Ardakani

Energy in today's short-range wireless communication is mostly spent on the analog- and digital hardware rather than on radiated power. Hence, purely information-theoretic considerations fail to achieve the lowest energy per information bit…

网络与互联网体系结构 · 计算机科学 2015-04-02 Christian Senning , Georgios Karakonstantis , Andreas Burg

The combination of mobile edge computing (MEC) and radio frequency-based wireless power transfer (WPT) presents a promising technique for providing sustainable energy supply and computing services at the network edge. This study considers a…

信息论 · 计算机科学 2024-02-28 Yang Li , Xing Zhang , Bo Lei , Qianying Zhao , Min Wei , Zheyan Qu , Wenbo Wang