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This letter studies bi-directional secure information exchange in a simultaneous wireless information and power transfer (SWIPT) system enabled by a full-duplex (FD) multiple-input multiple-output (MIMO) amplify-and-forward (AF) relay. The…

Information Theory · Computer Science 2017-09-26 Alexander A. Okandeji , Muhammad R. A. Khandaker , Kai-Kit Wong , Gan Zheng , Yangyang Zhang , Zhongbin Zheng

Integrating the wireless power transfer (WPT) technology into the wireless communication system has been important for operational cost saving and power-hungry problem solving of electronic devices. In this paper, we propose a resonant beam…

Systems and Control · Electrical Eng. & Systems 2021-07-28 Wen Fang , Hao Deng , Qingwen Liu , Mingqing Liu , Mengyuan Xu , Liuqing Yang , Georgios B. Giannakis

Energy beamforming (EB) is a key technique for achieving efficient radio-frequency (RF) transmission enabled wireless energy transfer (WET). By optimally designing the waveforms from multiple energy transmitters (ETs) over the wireless…

Information Theory · Computer Science 2015-11-25 Seunghyun Lee , Rui Zhang

This paper studies a secrecy integrated sensing and communication (ISAC) system, in which a multi-antenna base station (BS) aims to send confidential messages to a single-antenna communication user (CU), and at the same time sense several…

Information Theory · Computer Science 2021-10-26 Zixiang Ren , Ling Qiu , Jie Xu

We consider the problem of Simultaneous Wireless Information and Power Transfer (SWIPT) over a fading multiple access channel with additive Gaussian noise. The transmitters as well as the receiver harvest energy from ambient sources. We…

Information Theory · Computer Science 2016-12-14 P K Deekshith , Trupthi Chougule , Shreya Turmari , Ramya Raju , Rakshitha Ram , Vinod Sharma

This paper considers intelligent reflecting surface (IRS)-aided simultaneous wireless information and power transfer (SWIPT) in a multi-user multiple-input single-output (MISO) interference channel (IFC), where multiple transmitters (Txs)…

Information Theory · Computer Science 2024-01-31 Ying Gao , Qingqing Wu , Wen Chen , Celimuge Wu , Derrick Wing Kwan Ng , Naofal Al-Dhahir

This paper studies the capacity of the multi-antenna or multiple-input multiple-output (MIMO) secrecy channels with multiple eavesdroppers having single/multiple antennas. It is known that the MIMO secrecy capacity is achievable with the…

Information Theory · Computer Science 2009-02-02 Lan Zhang , Rui Zhang , Ying-Chang Liang , Yan Xin , Shuguang Cui

In this paper, a joint beamforming design for max-min fair simultaneous wireless information and power transfer (SWIPT) is investigated in a green cloud radio access network (Cloud-RAN) with millimeter wave (mmWave) wireless fronthaul. To…

Information Theory · Computer Science 2018-05-08 Zhao Chen , Haisheng Xu , Lin X. Cai , Yu Cheng

In this letter, we consider optimal hybrid beamforming design to minimize the transmission power under individual signal-to-interference-plus-noise ratio (SINR) constraints in a multiuser massive multiple-input-multiple-output (MIMO)…

Signal Processing · Electrical Eng. & Systems 2018-11-27 Guangda Zang , Ying Cui , Hei Victor Cheng , Feng Yang , Lianghui Ding , Hui Liu

We investigate the integration of stacked intelligent metasurfaces (SIMs) into cell-free massive multiple input multiple output (CF-mMIMO) system to enhance the simultaneous wireless information and power transfer (SWIPT) performance.…

Signal Processing · Electrical Eng. & Systems 2025-03-19 Thien Duc Hua , Mohammadali Mohammadi , Hien Quoc Ngo , Michail Matthaiou

To satisfy the long-range and energy self-sustaining communication needs of electronic devices in the Internet of Things (IoT), we introduce a simultaneous wireless information and power transfer (SWIPT) system using the resonant beam that…

Systems and Control · Electrical Eng. & Systems 2022-09-30 Wen Fang , Yunfeng Bai , Qingwen Liu , Shengli Zhou

Powering mobiles using microwave \emph{power transfer} (PT) avoids the inconvenience of battery recharging by cables and ensures uninterrupted mobile operation. The integration of PT and \emph{information transfer} (IT) allows wireless PT…

Information Theory · Computer Science 2014-10-07 Rahul Vaze , Jainam Doshi , Kaibin Huang

This paper considers a secure multigroup multicast multiple-input single-output (MISO) communication system aided by an intelligent reflecting surface (IRS). Specifically, we aim to minimize the transmit power at the Alice via jointly…

Signal Processing · Electrical Eng. & Systems 2020-08-18 Weiping Shi , Jiayu Li , Guiyang Xia , Yuntian Wang , Xiaobo Zhou , Yonghui Zhang , Feng Shu

In this paper, we study the optimal waveform design for wireless power transfer (WPT) from a multi-antenna energy transmitter (ET) to multiple single-antenna energy receivers (ERs) simultaneously in multi-path frequency-selective channels.…

Information Theory · Computer Science 2021-01-01 Samith Abeywickrama , Rui Zhang , Chau Yuen

The newly emerging wireless powered communication networks (WPCNs) have recently drawn significant attention, where radio signals are used to power wireless terminals for information transmission. In this paper, we study a WPCN where one…

Information Theory · Computer Science 2014-04-16 Liang Liu , Rui Zhang , Kee-Chaing Chua

This paper studies the beamforming design problem of a multi-user downlink network, assuming imperfect channel state information known to the base station. In this scenario, the base station is equipped with multiple antennas, and each user…

Signal Processing · Electrical Eng. & Systems 2020-03-25 Pu Zhao , Meng Zhang , Hui Yu , Hanwen Luo , Wen Chen

This paper investigates the passive beamforming and information transfer (PBIT) technique for the multiuser multiple-input multiple-output (MIMO) systems with the aid of a reconfigurable intelligent surface (RIS), where the RIS enhances the…

Information Theory · Computer Science 2020-01-01 Wenjing Yan , Xiaojun Yuan , Zhen-Qing He , Xiaoyan Kuai

This letter considers spectrum sharing between a primary multiuser multiple-input multiple-output (MIMO) wireless energy transfer (WET) system and a coexisting secondary point-to-point MIMO wireless information transmission (WIT) system,…

Information Theory · Computer Science 2015-01-12 Jie Xu , Suzhi Bi , Rui Zhang

This paper presents an optimal power splitting and beamforming design for co-located simultaneous wireless information and power transfer (SWIPT) users in Dynamic Metasurface Antenna (DMA)-aided multiuser multiple-input single-output (MISO)…

Signal Processing · Electrical Eng. & Systems 2026-05-06 Askin Altinoklu , Leila Musavian

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-…

Information Theory · Computer Science 2016-01-15 Wei Wu , Xueqi Zhang , Baoyun Wang
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