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This paper presents a new cooperative wireless communication network strategy that incorporates energy cooperation and data cooperation. The model establishment, design goal formulations, and algorithms for throughput maximization of the…

Signal Processing · Electrical Eng. & Systems 2018-01-30 Jun Zhou , Xiaodai Dong , Wu-Sheng Lu

In this paper, we examine the maximization of energy efficiency (EE) in next-generation multi-user MIMO-OFDM networks that evolve dynamically over time - e.g. due to user mobility, fluctuations in the wireless medium, modulations in the…

Information Theory · Computer Science 2015-04-16 Panayotis Mertikopoulos , E. Veronica Belmega

Free Space Optics (FSO) communication provides attractive bandwidth enhancement with unlicensed bands worldwide spectrum. However, the link capacity and availability are the major concern in the different atmospheric conditions. The…

Signal Processing · Electrical Eng. & Systems 2023-10-23 Gebrehiwet Gebrekrstos Lema

In this paper, we study multibeam satellite secure communication through physical (PHY) layer security techniques, i.e., joint power control and beamforming. By first assuming that the Channel State Information (CSI) is available and the…

Information Theory · Computer Science 2015-03-19 Jiang Lei , Zhu Han , M. A. Vázquez-Castro , Are Hjørungnes

The robust beamforming problem in multiple-input single-output (MISO) downlink networks of simultaneous wireless information and power transfer (SWIPT) is studied in this paper. Adopting the time switching fashion to perform energy…

Signal Processing · Electrical Eng. & Systems 2018-03-22 Yinglei Teng , Wanxin Zhao , Mei Yan , Yong Zhang , Mei Song

Radio-frequency (RF) enabled wireless energy transfer (WET), as a promising solution to provide cost-effective and reliable power supplies for energy-constrained wireless networks, has drawn growing interests recently. To overcome the…

Information Theory · Computer Science 2014-12-19 Yong Zeng , Rui Zhang

In this paper, we consider simultaneous wireless information and power transfer (SWIPT) in orthogonal frequency division multiple access (OFDMA) systems with the coexistence of information receivers (IRs) and energy receivers (ERs). The IRs…

Information Theory · Computer Science 2015-09-04 Meng Zhang , Yuan Liu

While information securityis a fundamental requirement for wireless communications, conventional optimization based approaches often struggle with real-time implementation, and deep models, typically discriminative in nature, may lack the…

Signal Processing · Electrical Eng. & Systems 2026-03-13 Tong Hui , Xiao Tang , Yichen Wang , Qinghe Du , Dusit Niyato , Zhu Han

Future wireless systems are expected to deliver significantly higher quality-of-service (QoS) albeit with fewer energy resources for diverse, already existing and also novel wireless applications. The optimal resource allocation for a…

Signal Processing · Electrical Eng. & Systems 2024-10-16 Srivardhan Sivadevuni , Kevin Weinberger , Aydin Sezgin

Energy-efficient communication is an important requirement for mobile devices, as the battery technology has not kept up with the growing requirements stemming from ubiquitous multimedia applications. This paper considers energy-efficient…

Information Theory · Computer Science 2012-03-06 Wei Yang , Lihua Li , Ying Wang , Wanlu Sun

We study physical-layer security in wireless ad hoc networks and investigate two types of multi-antenna transmission schemes for providing secrecy enhancements. To establish secure transmission against malicious eavesdroppers, we consider…

Information Theory · Computer Science 2016-11-15 Xi Zhang , Xiangyun Zhou , Matthew R. McKay

This paper studies an intelligent reflecting surface (IRS)-assisted multiuser multiple-input single-output (MISO) simultaneous wireless information and power transfer (SWIPT) system. In this system, a multi-antenna access point (AP) uses…

Signal Processing · Electrical Eng. & Systems 2019-10-17 Yizheng Tang , Ganggang Ma , Hailiang Xie , Jie Xu , Xiao Han

Employing reconfigurable intelligent surfaces (RIS) is emerging as a game-changer candidate, thanks to their unique capabilities in improving the power efficiency and supporting the ubiquity of future wireless communication systems.…

Information Theory · Computer Science 2020-10-14 Abdullateef Almohamad , Ayman Al-Kababji , Anas Tahir , Tamer Khattab , Mazen Hasna

Intelligent reflecting surfaces (IRSs) are regarded as key enablers of next-generation wireless communications, due to their capability of customizing the wireless propagation environment. In this paper, we investigate power-efficient…

Information Theory · Computer Science 2020-05-15 Xianghao Yu , Dongfang Xu , Derrick Wing Kwan Ng , Robert Schober

This article proposes a novel strategy for enhancing secure wireless communication through the use of a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) in a multiple-input single-output system. In…

Systems and Control · Electrical Eng. & Systems 2024-10-02 Zahra Rostamikafaki , Francois Chan , Claude D'Amours

In this paper, downlink secure transmission in simultaneous information and power transfer (SWIPT) system enabled with massive multiple-input multiple-output (MIMO) is studied. A base station (BS) with a large number of antennas transmits…

Information Theory · Computer Science 2020-08-12 Zahra Goli , S. Mohammad Razavizadeh , Hamed Farhadi , Tommy Svensson

This paper studies a multi-user multiple-input single-output (MISO) downlink system for simultaneous wireless information and power transfer (SWIPT), in which a set of single-antenna mobile stations (MSs) receive information and energy…

Information Theory · Computer Science 2016-11-17 Qingjiang Shi , Liang Liu , Weiqiang Xu , Rui Zhang

Massive MIMO systems promise high data rates by employing large number of antennas, which also increases the power usage of the system as a consequence. This creates an optimization problem which specifies how many antennas the system…

Information Theory · Computer Science 2017-06-15 Masoud Arash , Ehsan Yazdian , Mohammad sadegh Fazel , Glauber Brante , Muhammad Imran

This paper investigates a multiuser multiple-input single-output (MISO) full-duplex (FD) system for simultaneous wireless information and power transfer (SWIPT), in which a multi-antenna base station (BS) simultaneously sends wirelessly…

Information Theory · Computer Science 2017-03-17 Alexander A. Okandeji , Muhammad R. A. Khandaker , Kai-Kit Wong , Gan Zheng , Yangyang Zhang , Zhongbin Zheng

Non-orthogonal multiple access (NOMA) has been recognized as a promising technique for providing high data rates in 5G systems. This letter is to study physical layer security in a single-input single-output (SISO) NOMA system consisting of…

Information Theory · Computer Science 2016-03-15 Yi Zhang , Hui-Ming Wang , Qian Yang , Zhiguo Ding