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This paper investigates the energy-efficient hybrid beamforming design for a multi-functional integrated sensing, communications, and powering (ISCAP) system. In this system, a base station (BS) with a hybrid analog-digital (HAD)…

Information Theory · Computer Science 2024-03-26 Zeyu Hao , Yuan Fang , Xianghao Yu , Jie Xu , Ling Qiu , Lexi Xu , Shuguang Cui

Reconfigurable-antenna systems have received increasing attention for their ability to adapt wireless channels. However, existing architectures exhibit scenario-dependent limitations: fluid antennas provide strong diversity gains in…

Signal Processing · Electrical Eng. & Systems 2026-05-12 Xiao Lin , Yizhe Zhao , Xiangyang Wang , Halvin Yang , Bingxin Zhang

The reconfigurability of fluid antenna systems (FASs) and reconfigurable intelligent surfaces (RISs) provides significant flexibility in optimizing channel conditions by jointly adjusting the positions of fluid antennas and the phase shifts…

Information Theory · Computer Science 2025-09-29 Xin Zhang , Dongfang Xu , Jingjing Wang , Shenghui Song , Derrick Wing Kwan Ng , Mérouane Debbah

This paper explores an integrated sensing and communication (ISAC) network empowered by multiple active simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs). A base station (BS) furnishes downlink…

Signal Processing · Electrical Eng. & Systems 2025-07-25 Hyeonho Noh , Hyeonsu Lyu , Hyun Jong Yang

Fluid antenna is a promising wireless communication technology that enhances communication rate by changing the antenna positions. This article proposes a new communication system that combines multiple-input single-output (MISO) fluid…

Information Theory · Computer Science 2025-10-24 Feilong Zhang , Jianxin Dai , Zhaohui Yang , Kai-Kit Wong , Lingyuxiu Li , Jianglin Ye

Backscatter-based integrated sensing and communication (B-ISAC) elevates passive tags into information-bearing scatterers, offering an ultra-low-power path toward dual-function wireless systems. However, this promise is fundamentally…

Information Theory · Computer Science 2026-01-28 Haohao Zhang , Bowen Gu , Xianhua Yu , Hao Xie , Liejun Wang , Yongjun Xu , Xiaoming Tao , Haijun Zhang

This paper investigates the integration of a fluid reconfigurable intelligent surface (FRIS) into ambient backscatter communication (AmBC) systems. Unlike conventional reconfigurable intelligent surfaces (RISs) with fixed position elements,…

Signal Processing · Electrical Eng. & Systems 2025-10-30 Masoud Kaveh , Farshad Rostami Ghadi , Riku Jantti , Kai-Kit Wong , F. Javier Lopez-Martinez

An emerging fluid antenna system (FAS) brings a new dimension, i.e., the antenna positions, to deal with the deep fading, but simultaneously introduces challenges related to the transmit design. This paper proposes an ``unsupervised…

Signal Processing · Electrical Eng. & Systems 2025-02-07 Changpeng He , Yang Lu , Wei Chen , Bo Ai , Kai-Kit Wong , Dusit Niyato

Different from conventional radar, the cellular network in the integrated sensing and communication (ISAC) system enables collaborative sensing by multiple sensing nodes, e.g., base stations (BSs). However, existing works normally assume…

Signal Processing · Electrical Eng. & Systems 2023-05-10 Yiming Xu , Dongfang Xu , Lei Xie , Shenghui Song

The integration of backscatter communication (BackCom) technology with integrated sensing and communication (ISAC) technology not only enhances the system sensing performance, but also enables low-power information transmission. This is…

Signal Processing · Electrical Eng. & Systems 2024-11-04 Zongyao Zhao , Yuhan Dong , Tiankuo Wei , Xinke Tang , Xiao-Ping Zhang , Zhenyu Liu

This paper characterizes integration and coordination gains in dense millimeter-wave ISAC networks through a dual-mode framework that combines monostatic and multistatic sensing. A comprehensive system-level analysis is conducted,…

Information Theory · Computer Science 2025-12-05 Yasser Nabil , Hesham ElSawy , Hossam S. Hassanein

In this paper, we propose an energy efficient wireless communication system based on fluid antenna relay (FAR) to solve the problem of non-line-of-sight (NLoS) links caused by blockages with considering the physical properties. Driven by…

Signal Processing · Electrical Eng. & Systems 2025-08-07 Ruopeng Xu , Zhaohui Yang , Zhaoyang Zhang , Mohammad Shikh-Bahaei , Kaibin Huang , Dusit Niyato

Movable antennas (MAs) enhance flexibility in beamforming gain and interference suppression by adjusting position within certain areas of the transceivers. In this paper, we propose an MA-assisted integrated sensing and communication…

Signal Processing · Electrical Eng. & Systems 2025-01-03 Chengjun Jiang , Chensi Zhang , Chongwen Huang , Jianhua Ge , Dusit Niyato , Chau Yuen

Multiple-antenna backscatter is emerging as a promising approach to offer high communication performance for the data-intensive applications of ambient backscatter communications (AmBC). Although much has been understood about…

Signal Processing · Electrical Eng. & Systems 2019-12-24 Zhiang Niu , Wei Wang , Tao Jiang

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

Exploring the mutual benefit and reciprocity of sensing and communication (S\&C) functions is fundamental to realizing deeper integration for integrated sensing and communication (ISAC) systems. This paper investigates a novel…

Signal Processing · Electrical Eng. & Systems 2024-08-29 Fuwang Dong , Fan Liu , Shihang Lu , Yifeng Xiong , Qixun Zhang , Zhiyong Feng , Feifei Gao

In this paper, we consider an integrated sensing and communication (ISAC) system with wireless power transfer (WPT) where multiple unmanned aerial vehicle (UAV)-based radars serve multiple clusters of energy-limited communication users in…

Signal Processing · Electrical Eng. & Systems 2025-06-02 Omid Rezaei , Mohammad Mahdi Naghsh , Seyed Mohammad Karbasi , Mohammad Mahdi Nayebi

Non-fixed flexible antenna architectures, such as fluid antenna system (FAS), movable antenna (MA), and pinching antenna, have garnered significant interest in recent years. In this paper, we propose a new rotatable antenna (RA) model to…

Information Theory · Computer Science 2026-03-31 Beixiong Zheng , Qingjie Wu , Tiantian Ma , Rui Zhang

Integrated data and energy transfer (IDET) has been of fundamental importance for providing both wireless data transfer (WDT) and wireless energy transfer (WET) services towards low-power devices. Fluid antenna (FA) is capable of exploiting…

Information Theory · Computer Science 2024-03-15 Long Zhang , Halvin Yang , Yizhe Zhao , Jie Hu

Optimal beamforming designs under imperfect successive interference cancellation (SIC) decoding for a symbiotic network of non-orthogonal multiple access (NOMA) primary users and a secondary ambient tag have been lacking. We address that…

Signal Processing · Electrical Eng. & Systems 2023-11-29 Fatemeh Rezaei , Diluka Galappaththige , Chintha Tellambura , Sanjeewa Herath
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