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One of the trends that is gaining more and more importance in the field of beyond-5G and 6G wireless communication systems is the investigation on systems that jointly perform communication and sensing of the environment. This paper…

Information Theory · Computer Science 2019-12-03 Stefano Buzzi , Carmen D'Andrea , Marco Lops

This paper considers transmit covariance matrix design for secrecy rate maximization problem in a multiple-input single-output (MISO) multicasting simultaneous wireless information and power transfer (SWIPT) system. In order to enhance the…

Information Theory · Computer Science 2016-05-09 Miao Zhang , Kanapathippillai Cumanan , Alister Burr

This paper considers the problem of secret communication over a two-receiver multiple-input multiple-output (MIMO) Gaussian broadcast channel. The transmitter has two independent messages, each of which is intended for one of the receivers…

Information Theory · Computer Science 2009-03-24 Ruoheng Liu , Tie Liu , H. Vincent Poor , Shlomo Shamai

This paper studies the secure beamforming design in a multiple-antenna three-node system where two source nodes exchange messages with the help of an untrusted relay node. The relay acts as both an essential signal forwarder and a potential…

Information Theory · Computer Science 2015-06-18 Jianhua Mo , Meixia Tao , Yuan Liu , Rui Wang

In this letter, we propose to exploit an intelligent reflecting surface (IRS) to secure multiuser two-way communications. Specifically, two end users simultaneously transmit their signals, where the signal of one user is exploited as…

Information Theory · Computer Science 2020-11-03 Lu Lv , Qingqing Wu , Zan Li , Naofal Al-Dhahir , Jian Chen

Secrecy transmission is investigated for a cooperative jamming scheme, where a multi-antenna jam-mer generates artificial noise (AN) to confuse eavesdroppers. Two kinds of eavesdroppers are considered: passive eavesdroppers who only…

Signal Processing · Electrical Eng. & Systems 2020-02-19 Jiangbo Si , Zihao Cheng , Zan Li , Julian Cheng , Hui-Ming Wang , Naofal Al-Dhahir

This paper considers a scenario in which a source-destination pair needs to establish a confidential connection against an external eavesdropper, aided by the interference generated by another source-destination pair that exchanges public…

Information Theory · Computer Science 2016-12-21 Lingxiang Li , Athina P. Petropulu , Zhi Chen , Jun Fang

This paper studies a symbiotic system in which a reconfigurable intelligent surface (RIS) assists a radar transmitter while conveying information to a reader via backscattering. The RIS is partitioned into subarrays that redirect the radar…

Signal Processing · Electrical Eng. & Systems 2026-05-05 Mehri Nikzad , Luca Venturino , Emanuele Grossi , Xiaodong Wang

We consider multiple-input multiple-output (MIMO) radar systems with widely-spaced antennas. Such antenna configuration facilitates capturing the inherent diversity gain due to independent signal dispersion by the target scatterers. We…

Information Theory · Computer Science 2015-10-28 Ali Tajer , Guido H. Jajamovich , Xiaodong Wang , George V. Moustakides

Radar detection and communication can be operated simultaneously in joint radar-communication (JRC) system. In this paper, we propose a bistatic JRC system which is applicable in multi-path environments. Basing on a novel joint waveform, a…

Signal Processing · Electrical Eng. & Systems 2020-07-01 Yuan Quan , Longfei Shi , Jialei Liu , Jiazhi Ma

In the paper, the physical-layer security for reconfigurable intelligent surface (RIS) aided integrated sensing and communication (ISAC) system is studied. There is an active eavesdropper (AE) as well as a passive eavesdropper (PE), and…

Information Theory · Computer Science 2026-05-11 Yueyi Dong , Tian Zhang

Spectrum sharing is a new approach to solve the congestion problem in the RF spectrum. A spatial approach for spectrum sharing between a radar and a communication system was proposed, which mitigates the radar interference to communication…

Information Theory · Computer Science 2016-11-17 Awais Khawar , Ahmed Abdelhadi , T. Charles Clancy

This paper considers multiple-input multiple-output (MIMO) relay communication in multi-cellular (interference) systems in which MIMO source-destination pairs communicate simultaneously. It is assumed that due to severe attenuation and/or…

Information Theory · Computer Science 2017-03-28 Muhammad R A Khandaker , Kai-Kit Wong

We present a practical and provably-secure multimode communication scheme in the presence of a passive eavesdropper. The scheme is based on a random scheduling approach that hides the identity of the transmitter from the eavesdropper. This…

Cryptography and Security · Computer Science 2016-11-15 Omar Ali , Mahmoud F. Ayoub , Moustafa Youssef

Large-scale deployment of connected vehicles with cooperative awareness technologies increases the demand for vehicle-to-everything (V2X) communication spectrum in 5.9 GHz that is mainly allocated for the exchange of safety messages. To…

Signal Processing · Electrical Eng. & Systems 2021-09-28 Ceyhun D. Ozkaptan , Eylem Ekici , Chang-Heng Wang , Onur Altintas

In this paper, we consider the design of a multiple-input multiple-output (MIMO) transmitter which simultaneously functions as a MIMO radar and a base station for downlink multiuser communications. In addition to a power constraint, we…

Signal Processing · Electrical Eng. & Systems 2021-09-07 Xiang Liu , Tianyao Huang , Yimin Liu

The classic MIMO wiretap channel comprises a passive eavesdropper that attempts to intercept communications between an authorized transmitter-receiver pair, each node being equipped with multiple antennas. In a dynamic network, it is…

Information Theory · Computer Science 2013-08-13 Amitav Mukherjee , A. Lee Swindlehurst

This paper considers transmit beamforming in dual-function radar-communication (DFRC) system, where a DFRC transmitter simultaneously communicates with a communication user and detects a malicious target with the same waveform. Since the…

Signal Processing · Electrical Eng. & Systems 2022-11-24 Rong Wen , Ying Zhang , Qiang Li , Youxi Tang

This work studies secure transmission in intelligent reflecting surfaces (IRS)-assisted MIMO systems when an active eavesdropper is available in the network. We consider a scenario in which the eavesdropper performs an active pilot attack…

Information Theory · Computer Science 2020-10-19 Ali Bereyhi , Saba Asaad , Ralf R. Müller , Rafael F. Schaefer , H. Vincent Poor

Reconfigurable intelligent surface (RIS) has entered the public consciousness as a promising technology for enhancing the performance of future wireless communication systems by dynamically constructing the wireless channels. In this…

Information Theory · Computer Science 2023-03-02 Pingping Zhang , Shiqi Gong , Shaodan Ma