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相关论文: Practical Non-linear Energy Harvesting Model and R…

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In this letter, we consider a wireless-powered backscatter communication (WP-BackCom) network, where the transmitter first harvests energy from a dedicated energy RF source in the sleep state, and then backscatters information and harvests…

信息论 · 计算机科学 2019-06-04 Yinghui Ye , Liqin Shi , Rose Hu , Guangyue Lu

We study wireless power transmission by an energy source to multiple energy harvesting nodes with the aim to maximize the energy efficiency. The source transmits energy to the nodes using one of the available power levels in each time slot…

信号处理 · 电气工程与系统科学 2021-01-01 Debamita Ghosh , Manjesh K. Hanawal , Nikola Zlatanov

This paper considers an intelligent reflecting surface(IRS)-aided wireless powered communication network (WPCN), where devices first harvest energy from a power station (PS) in the downlink (DL) and then transmit information using…

信息论 · 计算机科学 2021-09-03 Piao Zeng , Qingqing Wu , Deli Qiao

Simultaneous wireless information and power transfer (SWIPT) has attracted sustained interest. We propose a null-space-based transmission scheme for multiuser SWIPT serving both energy users (EUs) and information users (IUs). Under a…

信号处理 · 电气工程与系统科学 2025-09-15 Cheng Luo , Jie Hu , Luping Xiang , Kun Yang , Zhiqin Wang

In this paper, we investigate the problem of jointly selecting a predefined number of energy-harvesting (EH) sensors and computing the optimal power allocation. The ultimate goal is to minimize the reconstruction distortion at the fusion…

信息论 · 计算机科学 2016-08-15 Miguel Calvo-Fullana , Javier Matamoros , Carles Antón-Haro

Radio waves carry both energy and information simultaneously. Nevertheless, Radio-Frequency (RF) transmission of these quantities have traditionally been treated separately. Currently, we are experiencing a paradigm shift in wireless…

信息论 · 计算机科学 2018-03-21 Bruno Clerckx , Rui Zhang , Robert Schober , Derrick Wing Kwan Ng , Dong In Kim , H. Vincent Poor

Energy harvesting (EH) has recently emerged as a promising technique for green communications. To realize its potential, communication protocols need to be redesigned to combat the randomness of the harvested energy. In this paper, we…

信息论 · 计算机科学 2016-11-17 Yaming Luo , Jun Zhang , Khaled B. Letaief

In this paper, we design an optimal sensor collaboration strategy among neighboring nodes while tracking a time-varying parameter using wireless sensor networks in the presence of imperfect communication channels. The sensor network is…

信号处理 · 电气工程与系统科学 2018-07-04 Shan Zhang , Sijia Liu , Vinod Sharma , Pramod K. Varshney

We aim at maximizing the sum rate of secondary users (SUs) in OFDM-based Heterogeneous Cognitive Radio (CR) Networks using RF energy harvesting. Assuming SUs operate in a time switching fashion, each time slot is partitioned into three…

网络与互联网体系结构 · 计算机科学 2017-05-12 Ali Shahini , Nirwan Ansari

This work addresses the challenge of minimizing the energy consumption of a wireless communication network by joint optimization of the base station transmit power and the cell activity. A mixed-integer nonlinear optimization problem is…

信号处理 · 电气工程与系统科学 2024-10-30 Florian Bahlke , Marius Pesavento

Since radio signals carry both energy and information at the same time, a unified study on simultaneous wireless information and power transfer (SWIPT) has recently drawn a significant attention for achieving wireless powered communication…

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

In this paper, we propose a state-of-the-art downlink communication transceiver design for transmissive reconfigurable metasurface (RMS)-enabled simultaneous wireless information and power transfer (SWIPT) networks. Specifically, a feed…

信号处理 · 电气工程与系统科学 2022-12-13 Zhendong Li , Wen Chen , Ziheng Zhang , Qingqing Wu , Huanqing Cao , Jun Li

This letter analyzes the performance of simultaneous wireless information-and-power transfer (SWIPT) in an overlay cognitive radio network (CRN) under Nakagami-$m$ fading. A pair of secondary users (SUs) is considered in which one SU…

信号处理 · 电气工程与系统科学 2020-04-07 Devendra Singh Gurjar , Ha H. Nguyen , Prabina Pattanayak

We consider simultaneous wireless information and power transfer (SWIPT) in MIMO Broadcast networks where one energy harvesting (EH) user and one information decoding (ID) user share the same time and frequency resource. In contrast to…

信息论 · 计算机科学 2014-10-17 Changick Song , Cong Ling , Jaehyun Park , Bruno Clerckx

We consider a multi-carrier and densely deployed small cell network, where small cells are powered by renewable energy source and operate in a full-duplex mode. We formulate an energy and traffic aware resource allocation optimization…

信号处理 · 电气工程与系统科学 2018-03-28 Animesh Yadav , Octavia A. Dobre , Nirwan Ansari

A main challenge of 5G and beyond wireless systems is to efficiently utilize the available spectrum and simultaneously reduce the energy consumption. From the radio resource allocation perspective, the solution to this problem is to…

信息论 · 计算机科学 2021-02-08 Bho Matthiesen , Eduard A. Jorswieck , Petar Popovski

The joint design of spatial channel assignment and power allocation in Multiple Input Multiple Output (MIMO) systems capable of Simultaneous Wireless Information and Power Transfer (SWIPT) is studied. Assuming availability of channel state…

信息论 · 计算机科学 2017-10-25 Deepak Mishra , George C. Alexandropoulos

In this paper, we study the waveform design problem for a single-input single-output (SISO) radio-frequency (RF) wireless power transfer (WPT) system in frequency-selective channels. First, based on the actual non-linear current-voltage…

信息论 · 计算机科学 2017-03-28 Mohammad R. Vedady Moghadam , Yong Zeng , Rui Zhang

In this paper, we consider the energy-bandwidth allocation for a network with multiple broadcast channels, where the transmitters access the network orthogonally on the assigned frequency band and each transmitter communicates with multiple…

信息论 · 计算机科学 2014-10-13 Zhe Wang , Vaneet Aggarwal , Xiaodong Wang

We consider the wireless powered communications where users harvest energy from non-dedicated sources. The user follows a harvest-then-transmit protocol: in first phase of a slot time the source node harvests energy from a nearby…

网络与互联网体系结构 · 计算机科学 2017-01-26 Hongxing Xia , Yongzhao Li , Hailin Zhang