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This article analyzes the performance of sensing and communications (S\&C) achieved by a multiple-input multiple-output downlink integrated S\&C (ISAC) system. Three ISAC scenarios are analyzed, including the sensing-centric design,…

Information Theory · Computer Science 2023-01-10 Chongjun Ouyang , Yuanwei Liu , Hongwen Yang

This paper proposes a secure integrated sensing and communications (ISAC) framework for multi-user systems with multiple communication users (CUs) and adversarial targets, where the design problem is formulated to maximize secrecy rate…

This paper focuses on an integrated sensing and communication (ISAC) system in the presence of signal-dependent modulated jamming (SDMJ). Our goal is to suppress jamming while carrying out simultaneous communications and sensing. We…

Signal Processing · Electrical Eng. & Systems 2025-03-20 Yu Zhou , Qiao Shi , Zhengchun Zhou , Zilong Liu , Pingzhi Fan

This paper focuses on the asymptotic analysis of a class of nonlinear one-bit precoding schemes under Rayleigh fading channels. The considered scheme employs a convex-relaxation-then-quantization (CRQ) approach to the well-known minimum…

Information Theory · Computer Science 2026-01-21 Zheyu Wu , Junjie Ma , Ya-Feng Liu , Bruno Clerckx

This paper proposes symbol level precoding in the downlink of a MISO cognitive system. The new scheme tries to jointly utilize the data and channel information to design a precoding that minimizes the transmit power at a cognitive base…

Information Theory · Computer Science 2015-05-11 Maha Alodeh , Symeon Chatzinotas , Bjorn Ottersten

This study proposes a symbol-level precoding algorithm based on the minimum mean squared error design objective under a strict per antenna power constraint for PSK modulation. The proposed design is then formulated in the standard form of a…

Information Theory · Computer Science 2022-06-28 Erico S. P. Lopes , Lukas T. N. Landau

In this paper, we formulate the precoding problem of integrated sensing and communication (ISAC) waveform as a non-convex quadratically constrainted quadratic program (QCQP), in which the weighted sum of communication multi-user…

Signal Processing · Electrical Eng. & Systems 2024-02-13 Yating Chen , Cai Wen , Yan Huang , Le Liang , Jie Li , Hui Zhang , Wei Hong

Traditional single-modality sensing faces limitations in accuracy and capability, and its decoupled implementation with communication systems increases latency in bandwidth-constrained environments. Additionally, single-task-oriented…

Machine Learning · Computer Science 2025-03-13 Yubo Peng , Luping Xiang , Kun Yang , Feibo Jiang , Kezhi Wang , Dapeng Oliver Wu

We consider a semantic communication system for speech signals, named DeepSC-S. Motivated by the breakthroughs in deep learning (DL), we make an effort to recover the transmitted speech signals in the semantic communication systems, which…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-09 Zhenzi Weng , Zhijin Qin , Geoffrey Ye Li

In this paper, we investigate the detection problem of binary faster-than-Nyquist (FTN) signaling and propose a novel sequence estimation technique that exploits its special structure. In particular, the proposed sequence estimation…

Information Theory · Computer Science 2017-03-08 Ebrahim Bedeer , Halim Yanikomeroglu , Mohamed Hossam Ahmed

In this paper, we consider symbol-level precoding (SLP) in channel-coded multiuser multi-input single-output (MISO) systems. It is observed that the received SLP signals do not always follow Gaussian distribution, rendering the conventional…

Signal Processing · Electrical Eng. & Systems 2023-10-17 Yafei Wang , Hongwei Hou , Wenjin Wang , Xinping Yi , Shi Jin

Integrated sensing and communication (ISAC) is a promising paradigm for future wireless systems due to spectrum reuse, hardware sharing, and joint waveform design. In dynamic scenes, Doppler shifts degrade both sensing and communication,…

Signal Processing · Electrical Eng. & Systems 2025-12-04 Yuan Liu , Wen-Xuan Long , M. R. Bhavani Shankar , Marco Moretti , Rui Chen , Björn Ottersten

Future wireless networks are poised to transform into integrated sensing and communication (ISAC) networks, unlocking groundbreaking services such as digital twinning. To harness the full potential of ISAC networks, it is essential to…

Information Theory · Computer Science 2024-10-31 Jie Yang , Hang Que , Tao Du , Le Liang , Xiao Li , Chao-Kai Wen , Shi Jin

A deep learning assisted sum-product detection algorithm (DL-SPA) for faster-than-Nyquist (FTN) signaling is proposed in this paper. The proposed detection algorithm concatenates a neural network to the variable nodes of the conventional…

Information Theory · Computer Science 2019-07-23 Bryan Liu , Shuangyang Li , Yixuan Xie , Jinhong Yuan

Integrated sensing and communication (ISAC) is a key enabler for future radio networks. This paper presents a sub-band full-duplex (SBFD) ISAC system that assigns non-overlapping OFDM subbands to sensing and communication, enabling…

Signal Processing · Electrical Eng. & Systems 2026-02-03 Bixing Yan , Kwadwo Mensah Obeng Afrane , Achiel Colpaert , Andre Kokkeler , Sofie Pollin , Yang Miao

A key challenge for a common waveform for Integrated Sensing and Communications (ISAC) - widely seen as an attractive proposition to achieve high performance for both functionalities, while efficiently utilizing available resources -- lies…

Information Theory · Computer Science 2022-09-12 Sundar Aditya , Onur Dizdar , Bruno Clerckx , Xueru Li

This letter investigates a symbol-level precoder design for movable antenna (MA)-enhanced dual-functional radar-communication (DFRC) systems. To enhance radar sensing capabilities, we formulate an optimization problem aimed at maximizing…

Signal Processing · Electrical Eng. & Systems 2026-05-28 Ran Yang , Ning Wei , Zheng Dong , Chadi Assi , You Li , Fei Xu , Yue Xiu

Reconfigurable intelligent surface (RIS) is an emerging technology for future wireless communication systems. In this work, we consider downlink spatial multiplexing enabled by the RIS for weighted sum-rate (WSR) maximization. In the…

Signal Processing · Electrical Eng. & Systems 2022-09-22 Bile Peng , Jan-Aike Termöhlen , Cong Sun , Danping He , Ke Guan , Tim Fingscheidt , Eduard A. Jorswieck

Integrated sensing and communication (ISAC) networks leverage extremely large antenna arrays and high frequencies. This inevitably extends the Rayleigh distance, making near-field (NF) spherical wave propagation dominant. This unlocks…

Information Theory · Computer Science 2025-04-22 Jiasi Zhou , Chintha Tellambura , Geoffrey Ye Li

Integrated learning and communication (ILAC) unifies learned transceivers with radio resource management, where semantic feature multiple access (SFMA) enables paired users to superpose their learned representations over shared…

Signal Processing · Electrical Eng. & Systems 2026-04-13 Jiaxiang Wang , Zhouxiang Zhao , Yahao Ding , Zhijin Qin , Zhaohui Yang , Mingzhe Chen , Mohammad Shikh-Bahaei