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Relay nodes are used to improve the throughput, delay and reliability performance of energy harvesting networks by assisting both energy and information transfer between information nodes and access point. Previous studies on radio…

网络与互联网体系结构 · 计算机科学 2020-02-04 Aysun Gurur Onalan , Elif Dilek Salik , Sinem Coleri

Energy harvesting (EH) from ambient radio-frequency (RF) electromagnetic waves is an efficient solution for fully autonomous and sustainable communication networks. Most of the related works presented in the literature are based on specific…

信息论 · 计算机科学 2016-11-18 Ioannis Krikidis

Energy harvesting (EH) combined with cooperative communications constitutes a promising solution for future wireless technologies. They enable additional efficiency and increased lifetime to wireless networks. This paper investigates a…

网络与互联网体系结构 · 计算机科学 2018-04-11 Ahmad Alsharoa , Hakim Ghazzai , Ahmed E Kamal , Abdullah Kadri

This paper considers a wireless powered communication network (WPCN) with group cooperation, where two communication groups cooperate with each other via wireless power transfer and time sharing to fulfill their expected information…

信息论 · 计算机科学 2017-03-28 Ke Xiong , Chen Chen , Gang Qu , Pingyi Fan , Khaled Ben Letaief

We consider wireless-powered amplify-and-forward and decode-and-forward relaying in cooperative communications, where an energy constrained relay node first harvests energy through the received radio-frequency signal from the source and…

信息论 · 计算机科学 2016-11-18 Ali Arshad Nasir , Xiangyun Zhou , Salman Durrani , Rodney A. Kennedy

We consider a multi-pair amplify-and-forward relay network where the energy-constrained relays adopting time-switching protocol harvest energy from the radio frequency signals transmitted by the users for assisting user data transmission.…

信息论 · 计算机科学 2018-10-16 Kien-Giang Nguyen , Quang-Doanh Vu , Le-Nam Tran , Markku Juntti

In this paper, a novel intelligent reflecting surface (IRS)-assisted wireless powered communication network (WPCN) architecture is proposed for power-constrained Internet-of-Things (IoT) smart devices, where IRS is exploited to improve the…

信息论 · 计算机科学 2021-12-07 Zhendong Li , Wen Chen , Qingqing Wu , Huanqing Cao , Kunlun Wang , Jun Li

This paper studies the newly emerging wireless powered communication network (WPCN) in which one hybrid access point (H-AP) with constant power supply coordinates the wireless energy/information transmissions to/from distributed users that…

信息论 · 计算机科学 2014-07-22 Hyunsgsik Ju , Rui Zhang

We consider a sensing application where the sensor nodes are wirelessly powered by an energy beacon. We focus on the problem of jointly optimizing the energy allocation of the energy beacon to different sensors and the data transmission…

信息论 · 计算机科学 2018-06-07 Ayca Ozcelikkale , Mehmet Koseoglu , Mani Srivastava

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

This letter considers a multi-pair decode-and-forward relay network where a power-splitting (PS) protocol is adopted at the energy-constrained relay to provide simultaneous wireless information and energy harvesting (EH). To achieve higher…

信号处理 · 电气工程与系统科学 2020-03-20 Van-Phuc Bui , Van-Dinh Nguyen , Hieu V. Nguyen , Octavia A. Dobre , Oh-Soon Shin

This paper investigates the energy efficiency (EE) optimization in downlink multi-cell massive multiple-input multiple-output (MIMO). In our research, the statistical channel state information (CSI) is exploited to reduce the signaling…

信息论 · 计算机科学 2021-09-06 Li You , Yufei Huang , Di Zhang , Zheng Chang , Wenjin Wang , Xiqi Gao

This paper considers a wireless powered multiuser mobile edge computing (MEC) system, in which a multi-antenna hybrid access point (AP) wirelessly charges multiple users, and each user relies on the harvested energy to execute computation…

信息论 · 计算机科学 2020-07-27 Feng Wang , Hong Xing , Jie Xu

This paper develops a novel approach to obtaining the optimal scheduling strategy in a multi-input multi-output (MIMO) multi-access channel (MAC), where each transmitter is powered by an individual energy harvesting process. Relying on the…

信息论 · 计算机科学 2017-09-28 Zheng Nan , Wenming Li

With the rapid growth of Internet of Things (IoT) devices, the next generation mobile networks demand for more operating frequency bands. By leveraging the underutilized radio spectrum, the cognitive radio (CR) technology is considered as a…

网络与互联网体系结构 · 计算机科学 2018-07-10 Ali Shahini , Abbas Kiani , Nirwan Ansari

User cooperation is an effective technique to tackle the severe near-far user unfairness problem in wireless powered communication networks (WPCNs). In this paper, we consider a WPCN where two collaborating wireless devices (WDs) first…

网络与互联网体系结构 · 计算机科学 2020-01-06 Yuan Zheng , Suzhi Bi , Xiaohui Lin , Hui Wang

In this paper, we study the resource allocation algorithm design for multiuser orthogonal frequency division multiplexing (OFDM) downlink systems with simultaneous wireless information and power transfer. The algorithm design is formulated…

信息论 · 计算机科学 2016-11-17 Derrick Wing Kwan Ng , Ernest S. Lo , Robert Schober

This paper studies a multiple-input single-output non-orthogonal multiple access cognitive radio network relying on simultaneous wireless information and power transfer. A realistic non-linear energy harvesting model is applied and a power…

信号处理 · 电气工程与系统科学 2018-07-12 Haijian Sun , Fuhui Zhou , Rose Qingyang Hu , Lajos Hanzo

We study the joint transmit (Tx) power allocation and receive (Rx) power splitting for simultaneous wireless information and power transfer (SWIPT). Considering the practical scenario of nonlinear energy harvesting (EH), we adopt the…

信息论 · 计算机科学 2018-04-03 Jae-Mo Kang , Il-Min Kim , Dong In Kim