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In this paper, we investigate the potential of employing reconfigurable intelligent surface (RIS) in integrated sensing and communication (ISAC) systems. In particular, we consider an RIS-assisted ISAC system in which a multi-antenna base…

Signal Processing · Electrical Eng. & Systems 2023-01-27 Rang Liu , Ming Li , A. Lee Swindlehurst

Intelligent reflecting surface (IRS) enhanced multi-unmanned aerial vehicle (UAV) non-orthogonal multiple access (NOMA) networks are investigated. A new transmission framework is proposed, where multiple UAV-mounted base stations employ…

Information Theory · Computer Science 2021-10-07 Xidong Mu , Yuanwei Liu , Li Guo , Jiaru Lin , H. Vincent Poor

Reconfigurable intelligent surfaces (RISs) become promising for enhancing non-orthogonal multiple access (NOMA) systems, i.e., enhancing the channel quality and altering the SIC orders. Invoked by stochastic geometry methods, we investigate…

Information Theory · Computer Science 2021-03-04 Chao Zhang , Wenqiang Yi , Yuanwei Liu , Qiang Wang

Non-orthogonal multiple access (NOMA) is a promising technology for next-generation wireless communication systems due to its enhanced spectral efficiency. In this paper, we consider an uplink NOMA system operating together with a…

Information Theory · Computer Science 2025-09-18 Azadeh Tabeshnezhad , Yuqing Zhu , Artem Vilenskiy , Van Ly Nguyen , A. Lee Swindlehurst , Tommy Svensson

Backscatter communications (BC) has emerged as a promising technology for providing low-powered transmissions in nextG (i.e., beyond 5G) wireless networks. The fundamental idea of BC is the possibility of communications among wireless…

Signal Processing · Electrical Eng. & Systems 2022-02-04 Wali Ullah Khan , Muhammad Ali Jamshed , Asad Mahmood , Eva Lagunas , Symeon Chatzinotas , Bjorn Ottersten

Recently, the pinching antenna system (PASS) has attracted considerable attention due to their advantages in flexible deployment and reduction of signal propagation loss. In this work, a multiple waveguide PASS assisted integrated sensing…

Signal Processing · Electrical Eng. & Systems 2026-01-01 Haochen Li , Ruikang Zhong , Jiayi Lei , Yuanwei Liu

Network capacity calls for significant increase for 5G cellular systems. A promising multi-user access scheme, non-orthogonal multiple access (NOMA) with successive interference cancellation (SIC), is currently under consideration. In NOMA,…

Information Theory · Computer Science 2016-11-18 Lei Lei , Di Yuan , Chin Keong Ho , Sumei Sun

By activating blocked users and altering successive interference cancellation (SIC) sequences, reconfigurable intelligent surfaces (RISs) become promising for enhancing non-orthogonal multiple access (NOMA) systems. The downlink RIS-aided…

Information Theory · Computer Science 2020-08-20 Chao Zhang , Wenqiang Yi , Yuanwei Liu

Integrated sensing and communications (ISAC) is a disruptive technology enabling future sixth-generation (6G) networks. This paper investigates target detection in a bistatic ISAC system, in which the base station (BS) transmits…

Signal Processing · Electrical Eng. & Systems 2025-11-17 Xianxin Song , Xianghao Yu , Jie Xu , Derrick Wing Kwan Ng

Integrated sensing and communication (ISAC) is a key technology for future 6G networks. Most existing studies focus on monostatic and/or bistatic setups with limited coverage and capabilities. Networked ISAC systems with distributed base…

Signal Processing · Electrical Eng. & Systems 2025-10-14 Yuan Guo , Wen Chen , Qingqing Wu , Yang Liu , Qiong Wu , Kunlun Wang , Jun Li , Lexi Xu

In this work, we consider end-to-end calibration of an integrated sensing and communication (ISAC) base station (BS) under gain-phase and antenna displacement impairments without collecting signals from predefined positions (labeled data).…

Signal Processing · Electrical Eng. & Systems 2026-04-02 José Miguel Mateos-Ramos , Baptiste Chatelier , Luc Le Magoarou , Nir Shlezinger , Henk Wymeersch , Christian Häger

This paper investigates a fluid antenna (FA) enhanced integrated sensing and communication (ISAC) system consisting of a base station (BS), multiple single-antenna communication users, and one point target, where the BS is equipped with FAs…

Signal Processing · Electrical Eng. & Systems 2024-07-09 Tian Hao , Changxin Shi , Yinghong Guo , Bin Xia , Feng Yang

This paper investigates the downlink transmission of reconfigurable intelligent surface (RIS)-aided cooperative non-orthogonal-multiple-access (C-NOMA), where both half-duplex (HD) and full-duplex (FD) relaying modes are considered. The…

Signal Processing · Electrical Eng. & Systems 2021-01-06 Mohamed Elhattab , Mohamed Amine Arfaoui , Chadi Assi , Ali Ghrayeb

Integrated sensing and communication (ISAC) is expected to be offered as a fundamental service in the upcoming sixth-generation (6G) communications standard. However, due to the exposure of information-bearing signals to the sensing…

Signal Processing · Electrical Eng. & Systems 2023-05-09 Vaibhav Kumar , Marwa Chafii , A. Lee Swindlehurst , Le-Nam Tran , Mark F. Flanagan

In this paper, a novel transmissive reconfigurable intelligent surface (TRIS) transceiver empowered integrated sensing and communications (ISAC) system is proposed for future multi-demand terminals. To address interference management, we…

Information Theory · Computer Science 2024-02-20 Ziwei Liu , Wen Chen , Qingqing Wu , Jinhong Yuan , Shanshan Zhang , Zhendong Li , Jun Li

Integrated sensing and communication (ISAC) is a promising candidate technology for 6G due to its improvement in spectral efficiency and energy efficiency. Orthogonal frequency division multiplexing (OFDM) signal is a mainstream candidate…

Signal Processing · Electrical Eng. & Systems 2025-08-19 Lin Wang , Zhiqing Wei , Xu Chen , Zhiyong Feng

We investigate a coded uplink non-orthogonal multiple access (NOMA) configuration in which groups of co-channel users are modulated in accordance with orthogonal time frequency space (OTFS). We take advantage of OTFS characteristics to…

Information Theory · Computer Science 2021-02-10 Yao Ge , Qinwen Deng , P. C. Ching , Zhi Ding

Airborne mobile Integrated Sensing and Communication (ISAC) base stations have garnered significant attention recently, with ISAC technology being a crucial application for 6G networks. Since ISAC can sense potential mobile communication…

Performance · Computer Science 2025-08-05 Shengcai Zhou , Luping Xiang , Kun Yang , Kai Kit Wong , Dapeng Oliver Wu , Chan-Byoung Chae

Conventional power-domain non-orthogonal multiple access (NOMA) relies on precise power control, which requires real-time channel state information at transmitters. This requirement severely limits its application to future wireless…

Information Theory · Computer Science 2020-03-13 Zhaoji Zhang , Ying Li , Guanghui Song , Chau Yuen , Yong Liang Guan

To design an efficient interference management and multiple access scheme for visible light communication (VLC) network, this letter leverages the non-orthogonal multiple access (NOMA), which has received significant attention in the…

Information Theory · Computer Science 2016-10-25 Xiaoke Zhang , Qian Gao , Chen Gong , Zhengyuan Xu