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In this paper, we consider the problem of information-theoretic waveform design for active sensing systems such as radar for extended targets. Contrary to the popular formulation of the problem in the estimation-theoretic context, we are…

Information Theory · Computer Science 2014-02-24 Mir H. Mahmood , Mark R. Bell

Next-generation cellular networks will witness the creation of smart radio environments (SREs), where walls and objects can be coated with reconfigurable intelligent surfaces (RISs) to strengthen the communication and localization coverage…

Information Theory · Computer Science 2020-09-08 Ahmed Elzanaty , Anna Guerra , Francesco Guidi , Mohamed-Slim Alouini

In this study, we consider the physical layer security in the downlink of a Massive MIMO system employing one-bit quantization at the base station (BS). We assume an active eavesdropper that attempts to spoiling the channel estimation…

Information Theory · Computer Science 2020-03-03 M. A. Teeti

This paper investigates the secure transmission in a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted uplink non-orthogonal multiple access system, where the legitimate users send…

Information Theory · Computer Science 2021-11-05 Zheng Zhang , Jian Chen , Yuanwei Liu , Qingqing Wu , Bingtao He , Long Yang

A reconfigurable intelligent surface (RIS) allows a reflection transmission path between a base station (BS) and user equipment (UE). In wireless localization, this reflection path aids in positioning accuracy, especially when the…

Signal Processing · Electrical Eng. & Systems 2023-06-14 Wei Zhang , Zhenni Wang , Wee Peng Tay

The technological innovation towards 6G cellular networks introduces unprecedented capabilities for user equipment (UE) localization, but it also raises serious concerns about physical layer location privacy. This paper introduces…

Signal Processing · Electrical Eng. & Systems 2025-09-30 Lorenzo Italiano , Alireza Pourafzal , Hui Chen , Mattia Brambilla , Gonzalo Seco-Granados , Monica Nicoli , Henk Wymeersch

Regenerating codes based on the approach of interference alignment for wireless interference channel achieve the cut-set bound for distributed storage systems. These codes provide data reliability, and perform efficient exact node repair…

Information Theory · Computer Science 2018-01-08 Natasa Paunkoska , Ninoslav Marina , Venceslav Kafedziski

Accurate parameter estimation such as angle of arrival (AOA) is essential to enhance the performance of integrated sensing and communication (ISAC) in mmWave multiple-input multiple-output (MIMO) systems. This work presents a sensing-aided…

Information Theory · Computer Science 2025-03-05 Ngoc-Son Duong , Khac-Hoang Ngo , Thai-Mai Dinh , Van-Linh Nguyen

Communication in Millimeter wave (mmWave) band relies on narrow beams due to directionality, high path loss, and shadowing. One can use beam alignment (BA) techniques to find and adjust the direction of these narrow beams. In this paper, BA…

Information Theory · Computer Science 2022-01-19 Abbas Khalili , Shahram Shahsavari , Mohammad A. Amir Khojastepour , Elza Erkip

The degrees of freedom (DoF) of the two-user Gaussian multiple-input and multiple-output (MIMO) broadcast channel with confidential message (BCC) is studied under the assumption that delayed channel state information (CSI) is available at…

Information Theory · Computer Science 2011-12-13 Sheng Yang , Mari Kobayashi , Pablo Piantanida , Shlomo Shamai

In this paper, interference alignment (IA) is designed for secure multiuser multiple-input multiple-output systems in the presence of an eavesdropper. The proposed IA technique designs the transmit precoding and receiving subspace matrices…

Information Theory · Computer Science 2015-08-05 Tung T. Vu , Ha Hoang Kha , Trung Q. Duong , Nguyen-Son Vo

This paper proposes a novel multiple intelligent reflecting surfaces (IRSs) collaborative hybrid localization system, which involves deploying multiple IRSs near the target area and achieving target localization through joint time delay and…

Signal Processing · Electrical Eng. & Systems 2025-11-06 Ziheng Zhang , Wen Chen , Qingqing Wu , Haoran Qin , Zhendong Li , Qiong Wu

With the explosive advancement of unmanned aerial vehicles (UAVs), the security of efficient UAV networks has become increasingly critical. Owing to the open nature of its communication environment, illegitimate malicious UAVs (MUs) can…

Systems and Control · Electrical Eng. & Systems 2025-11-13 Ziqi Chen , Jun Du , Chunxiao Jiang , Tony Q. S. Quek , Zhu Han

In this paper, we propose a robust secrecy transmission scheme for intelligent reflecting surface (IRS) aided communication systems. Different from all the existing works where IRS has already been deployed at a fixed location, we take the…

Information Theory · Computer Science 2022-08-01 Jiale Bai , Hui-Ming Wang , Peng Liu

We consider the problem of localizing two sensors using signals of opportunity from beacons with known positions. Beacons and sensors have asynchronous local clocks or oscillators with unknown clock skews and offsets. We model clock skews…

Information Theory · Computer Science 2013-09-09 Mei Leng , Wee Peng Tay , Chong Meng Samson See , Sirajudeen Gulam Razul , Moe Z. Win

Reconfigurable intelligent surfaces (RISs) have been extensively applied in integrated sensing and communication (ISAC) systems due to the capability of enhancing physical layer security (PLS). However, conventional static RIS architectures…

Signal Processing · Electrical Eng. & Systems 2025-12-24 Ling Zhuang , Ximing Xie , Fang Fang , Ali Attaran , Zhizhong Zhang

In this correspondence, we study the secure multiantenna transmission with artificial noise (AN) under imperfect channel state information in the presence of spatially randomly distributed eavesdroppers. We derive the optimal solutions of…

Information Theory · Computer Science 2016-01-07 Tong-Xing Zheng , Hui-Ming Wang

This paper studies a multi-target multi-user integrated sensing and communication (ISAC) system where a multi-antenna base station (BS) communicates with multiple single-antenna users in the downlink and senses the unknown and random angle…

Information Theory · Computer Science 2025-07-01 Jiayi Yao , Shuowen Zhang

We derive fundamental accuracy limits for distributed localization when a fusion center has access only to independently rate-distortion (RD)-optimally compressed versions of multi-sensor observations, under a line-of-sight propagation…

Information Theory · Computer Science 2026-03-31 Amir Weiss

Six-dimensional movable antenna (6DMA) has been widely studied for capacity enhancement, but its potential for physical layer security (PLS) remains largely unexplored. By adjusting both three-dimensional (3D) positions and 3D rotations of…

Systems and Control · Electrical Eng. & Systems 2025-09-23 Yanzhi Qian , Jing Jiang , Jingze Ding , Xiaoshao Dan , Hongyun Chu