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Unicast communication over a network of $M$-parallel relays in the presence of an eavesdropper is considered. The relay nodes, operating under individual power constraints, amplify and forward the signals received at their inputs. The…

Information Theory · Computer Science 2015-04-21 Siddhartha Sarma , Samar Agnihotri , Joy Kuri

This letter considers a multi-access mobile edge computing (MEC) network consisting of multiple users, multiple base stations, and a malicious eavesdropper. Specifically, the users adopt the partial offloading strategy by partitioning the…

Information Theory · Computer Science 2021-09-22 Mingxiong Zhao , Huiqi Bao , Li Yin , Jianping Yao , Tony Q. S. Quek

In this article, physical layer security (PLS) in an intelligent reflecting surface (IRS) assisted multiple-input multiple-output multiple antenna eavesdropper (MIMOME) system is studied. In particular, we consider a practical scenario…

Information Theory · Computer Science 2023-04-05 Chi Zhang , Yiliang Liu , Hsiao-Hwa Chen

This paper examines the secrecy performance of millimeter-wave (mm-Wave) communications with imperfect hardware and uncertain eavesdropper location. We consider a multiple-antenna source communicating with a single-antenna destination using…

Information Theory · Computer Science 2021-01-07 Saeed Mashdour , Majid Moradikia , Phee Lep Yeoh

This paper studies transmit beamforming design in an integrated sensing and communication (ISAC) system, where a base station sends symbols to perform downlink multi-user communication and sense an extended target simultaneously. We first…

Information Theory · Computer Science 2023-12-19 Yiqiu Wang , Meixia Tao , Shu Sun

A Gaussian multiple-input multiple-output wiretap channel in which the eavesdropper and legitimate receiver are equipped with arbitrary numbers of antennas and the transmitter has two antennas is studied in this paper. Under an average…

Information Theory · Computer Science 2017-07-21 Mojtaba Vaezi , Wonjae Shin , H. Vincent Poor

This work studies the beamforming design in the joint proactive eavesdropping (PE) and target sensing (TS) systems. The base station (BS) wiretaps the information transmitted by the illegal transmitter and sends the waveform for TS. The…

Information Theory · Computer Science 2025-12-30 Qian Dan , Hongjiang Lei , Ki-Hong Park , Gaofeng Pan , Mohamed-Slim Alouini

In this paper, we consider the problem of power allocation in MIMO wiretap channel for secrecy in the presence of multiple eavesdroppers. Perfect knowledge of the destination channel state information (CSI) and only the statistical…

Information Theory · Computer Science 2014-01-16 Sanjay Vishwakarma , A. Chockalingam

This work investigates the physical layer security of rate-splitting multiple access (RSMA)-aided integrated communication and sensing (ISAC) systems. The ISAC base station (BS) transmits signals to communicate with users in an eavesdropped…

Information Theory · Computer Science 2025-06-05 Qian Dan , Hongjiang Lei , Ki-Hong Park , Gaofeng Pan

We consider the problem of finding secrecy rate of a multiple-input multiple-output (MIMO) wire-tap channel. A transmitter, a legitimate receiver, and an eavesdropper are all equipped with multiple antennas. The channel states from the…

Information Theory · Computer Science 2014-11-04 Arash Khabbazibasmenj , Maksym A. Girnyk , Sergiy A. Vorobyov , Mikko Vehkaperä , Lars K. Rasmussen

In unmanned aerial vehicle (UAV) networks, directional modulation (DM) is adopted to improve the secrecy rate (SR) performance. Alice, a ground base station, behaves as a control center, and Bob is a UAV of flying along a linear flight…

Information Theory · Computer Science 2018-08-15 Feng Shu , Zaoyu Lu , Jinyong Lin , Linlin Sun , Xiaobo Zhou , Tingting Liu , Shuo Zhang , Wenlong Cai , Jinhui Lu , Jin Wang

This paper considers artificial noise (AN)-aided transmit designs for multi-user MISO systems in the eyes of service integration. Specifically, we combine two sorts of services, and serve them simultaneously: one multicast message intended…

Information Theory · Computer Science 2017-02-28 Weidong Mei , Zhi Chen , Lingxiang Li , Jun Fang , Shaoqian Li

Cognitive radio networks (CRNs) and millimeter wave (mmWave) communications are two major technologies to enhance the spectrum efficiency (SE). Considering that the SE improvement in the CRNs is limited due to the interference temperature…

Information Theory · Computer Science 2022-05-03 Xuewen Wu , Jingxiao Ma , Chenwei Gu , Xiaoping Xue , Xin Zeng

This paper tackles the problem of joint active and passive beamforming optimization for an intelligent reflective surface (IRS)-assisted multi-user downlink multiple-input multiple-output (MIMO) communication system. We aim to maximize…

Information Theory · Computer Science 2021-06-17 Haseeb Ur Rehman , Faouzi Bellili , Amine Mezghani , and Ekram Hossain

The important problem of weighted sum rate maximization (WSRM) in a multicellular environment is intrinsically sensitive to channel estimation errors. In this paper, we study ways to maximize the weighted sum rate in a linearly precoded…

Information Theory · Computer Science 2013-10-21 Muhammad Fainan Hanif , Le-Nam Tran , Antti Tölli , Markku Juntti , Savo Glisic

This paper tackles the fundamental passive eavesdropping problem in modern wireless communications in which the location and the channel state information (CSI) of the attackers are unknown. In this regard, we propose deploying an unmanned…

Information Theory · Computer Science 2023-06-16 Aly Sabri Abdalla , Ali Behfarnia , Vuk Marojevic

In this paper, we study robust beamforming design for near-field physical-layer-security (PLS) systems, where a base station (BS) equipped with an extremely large-scale array (XL-array) serves multiple near-field legitimate users (Bobs) in…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Chao Zhou , Changsheng You , Cong Zhou , Chengwen Xing , Jianhua Zhang

In this paper, we study the secrecy throughput of a full-duplex wireless powered communication network (WPCN) for internet of things (IoT). The WPCN consists of a full-duplex multi-antenna base station (BS) and a number of sensor nodes. The…

Information Theory · Computer Science 2023-04-06 Roohollah Rezaei , Sumei Sun , Xin Kang , Yong Liang Guan , Mohammad Reza Pakravan

A wireless network of multiple transmitter-user pairs overheard by an eavesdropper, where the transmitters are equipped with multiple antennas while the users and eavesdropper are equipped with a single antenna, is considered. At different…

Information Theory · Computer Science 2018-08-01 Zhichao Sheng , Hoang Duong Tuan , Trung Q. Duong , H. Vincent Poor

Extensive research on Reconfigurable Intelligent Surfaces (RIS) has primarily focused on optimizing reflective coefficients for passive beamforming in specific target directions. This optimization typically assumes prior knowledge of the…

Signal Processing · Electrical Eng. & Systems 2025-12-05 Xiao Cai , Hei Victor Cheng , Daniel E. Lucani
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