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Cell-free massive multiple input multiple output (MIMO) systems can provide reliable connectivity and increase user throughput and spectral efficiency of integrated sensing and communication (ISAC) systems. This can only be achieved through…

Signal Processing · Electrical Eng. & Systems 2024-12-25 Mohamed Elrashidy , Mudassir Masood , Ali Arshad Nasir

This letter investigates the robust beamforming design for a near-field secure integrated sensing and communication (ISAC) system with multiple communication users (CUs) and targets, as well as multiple eavesdroppers. Taking into account…

Information Theory · Computer Science 2025-07-18 Ziqiang CHen , Feng Wang , Guojun Han , Xin Wang , Vincent K. N. Lau

The precoding in cell-free massive multiple-input multiple-output (MIMO) technology relies on accurate knowledge of channel responses between users (UEs) and access points (APs). Obtaining high-quality channel estimates in turn requires the…

Information Theory · Computer Science 2021-01-27 Giovanni Interdonato , Pål Frenger , Erik G. Larsson

In this paper, two modulation schemes based on complementary sequences (CSs) are proposed for uplink control channels in unlicensed bands. These schemes address high peak-to-average-power ratio (PAPR) under non-contiguous resource…

Information Theory · Computer Science 2020-06-30 Alphan Sahin , Rui Yang

Learning-based downlink power control in cell-free massive multiple-input multiple-output (CFmMIMO) systems offers a promising alternative to conventional iterative optimization algorithms, which are computationally intensive due to online…

Machine Learning · Computer Science 2024-12-02 Atchutaram K. Kocharlakota , Sergiy A. Vorobyov , Robert W. Heath

Coding and testing schemes and the corresponding achievable type-II error exponents are presented for binary hypothesis testing over two-hop relay networks. The schemes are based on cascade source coding techniques and {unanimous…

Information Theory · Computer Science 2020-01-24 Sadaf Salehkalaibar , Michele Wigger , Ligong Wang

Integrated sensing and communication (ISAC) systems have emerged as a promising solution to improve spectrum efficiency and enable functional convergence. However, ensuring secure information transmission while maintaining high-quality…

Signal Processing · Electrical Eng. & Systems 2025-12-12 Yufei Wang , Qiang Li , Hongli Liu , Ying Zhang , Jingran Lin

We study model-based end-to-end learning in the context of integrated sensing and communication (ISAC) under hardware impairments. Hardware impairments are usually addressed by means of array calibration with a focus on communication…

Signal Processing · Electrical Eng. & Systems 2024-12-20 José Miguel Mateos-Ramos , Christian Häger , Musa Furkan Keskin , Luc Le Magoarou , Henk Wymeersch

This paper considers pilot design to mitigate pilot contamination and provide good service for everyone in multi-cell Massive multiple input multiple output (MIMO) systems. Instead of modeling the pilot design as a combinatorial assignment…

Information Theory · Computer Science 2018-01-23 Trinh Van Chien , Emil Björnson , Erik G. Larsson

In orthogonal frequency-division multiplexing (OFDM) systems operating over rapidly time-varying channels, the orthogonality between subcarriers is destroyed leading to inter-carrier interference (ICI) and resulting in an irreducible error…

Information Theory · Computer Science 2009-11-03 Erdal Panayirci , Hakan Dogan , H. Vincent Poor

This paper considers an integrated sensing and communication (ISAC) system with monostatic radar functionality using a zero-padding orthogonal frequency division multiplexing (ZP-OFDM) downlink transmission. We focus on ISAC's sensing…

Signal Processing · Electrical Eng. & Systems 2024-02-02 Roberto Bomfin , Marwa Chafii

Prior works have explored multi-armed bandit (MAB) algorithms for the selection of optimal beams for millimeter-wave (mmW) communications between base station and mobile users. However, when the number of beams is large, the existing MAB…

Signal Processing · Electrical Eng. & Systems 2026-02-10 Akanksha Sneh , Shobha Sundar Ram , Sumit J Darak , Aakanksha Tewari

A framework of continuous-aperture array (CAPA)-based integrated sensing and communications (ISAC) under a fading communication channel is proposed. A continuous operator-based signal model is developed, and the statistics of the…

Signal Processing · Electrical Eng. & Systems 2026-03-04 Boqun Zhao , Chongjun Ouyang , Xingqi Zhang , Yuanwei Liu

In this paper, we consider the problem of minimizing the completion delay for instantly decodable network coding (IDNC), in wireless multicast and broadcast scenarios. We are interested in this class of network coding due to its numerous…

Networking and Internet Architecture · Computer Science 2012-01-24 Sameh Sorour , Shahrokh Valaee

This paper optimizes the pilot assignment and pilot transmit powers to mitigate pilot contamination in Massive MIMO (multiple-input multiple-output) systems. While prior works have treated pilot assignment as a combinatorial problem, we…

Information Theory · Computer Science 2017-03-07 Trinh Van Chien , Emil Björnson , Erik G. Larsson

Modeling and control of nonlinear dynamics are critical in robotics, especially in scenarios with unpredictable external influences and complex dynamics. Traditional cascaded modular control pipelines often yield suboptimal performance due…

Robotics · Computer Science 2025-04-30 Haonan He , Yuheng Qiu , Junyi Geng

In this paper, we study the equalization design for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems with insufficient cyclic prefix (CP). In particular, the signal detection performance is…

Information Theory · Computer Science 2020-07-24 Yan Sun , Chao Wang , Huan Cai , Chunming Zhao , Yiqun Wu , Yan Chen

This letter investigates bit-interleaved coded multiple beamforming (BICMB) with perfect coding in millimeter-wave (mm-wave) massive multiple-input multiple-output (MIMO) systems to achieve both maximum diversity gain and multiplexing gain.…

Information Theory · Computer Science 2020-05-07 Sadjad Sedighi , Ender Ayanoglu

This paper investigates the performance of multi-user covert communications over a fixed bandwidth in a multi-cell scenario with both eavesdroppers and malicious jammers. We propose an intelligent spectrum control (ISC) scheme that combines…

Information Theory · Computer Science 2026-01-12 Yujie Ling , Zan Li , Lei Guan , Zheng Zhang , Dusit Niyato

In this paper, we present a signaling design for secure integrated sensing and communication (ISAC) systems comprising a dual-functional multi-input multi-output (MIMO) base station (BS) that simultaneously communicates with multiple users…

Information Theory · Computer Science 2024-01-31 Nanchi Su , Fan Liu , Christos Masouros , George C. Alexandropoulos , Yifeng Xiong , Qinyu Zhang