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Indexed modulation (IM) is an evolving technique that has become popular due to its ability of parallel data communication over distinct combinations of transmission entities. In this article, we first provide a comprehensive survey of…

Information Theory · Computer Science 2023-02-16 Rohit Singh , Aryan Kaushik , Wonjae Shin , George C. Alexandropoulos , Mesut Toka , Marco Di Renzo

Index modulation schemes for reconfigurable intelligent surfaces (RIS)-assisted systems are envisioned as promising technologies for fifth-generation-advanced and sixth-generation (6G) wireless communication systems to enhance various…

Information Theory · Computer Science 2023-07-19 Aritra Basu , Soumya P. Dash , Aryan Kaushik , Debasish Ghose , Marco Di Renzo , Yonina C. Eldar

This letter describes an incremental multimodal surface mapping methodology, which represents the environment as a continuous probabilistic model. This model enables high-resolution reconstruction while simultaneously compressing spatial…

Robotics · Computer Science 2024-04-18 Kshitij Goel , Wennie Tabib

Cell-free massive MIMO is a promising technology for beyond-5G networks. Through the deployment of many cooperating access points (AP), the technology can significantly enhance user coverage and spectral efficiency compared to traditional…

Information Theory · Computer Science 2023-01-12 Ly V. Nguyen , Hien Quoc Ngo , Le-Nam Tran , A. Lee Swindlehurst , Duy H. N. Nguyen

In this paper, the spectral efficiency of permutation modulation-based multiple input multiple output (MIMO) visible light communication is improved using systematically designed, multiweight codeword matrices. Soft-decision, low-complexity…

Signal Processing · Electrical Eng. & Systems 2020-07-01 Oluwafemi Kolade , Ling Cheng

This paper investigates a cell-free massive MIMO (multiple-input multiple-output) system where distributed access points (APs) perform integrated sensing and communications (ISAC) tasks, enabling simultaneous user communication and target…

Information Theory · Computer Science 2025-03-11 Sergi Liesegang , Stefano Buzzi , Carmen D'Andrea

Probabilistic constellation shaping has been used in long-haul optically amplified coherent systems for its capability to approach the Shannon limit and realize fine rate granularity. The availability of high-bandwidth optical-electronic…

Signal Processing · Electrical Eng. & Systems 2023-03-31 Md Sabbir-Bin Hossain , Georg Bocherer , Talha Rahman , Tom Wettlin , Nebojsa Stojanovic , Stefano Calabro , Stephan Pachnicke

The problem of modulation classification for a multiple-antenna (MIMO) system employing orthogonal frequency division multiplexing (OFDM) is investigated under the assumption of unknown frequency-selective fading channels and…

Information Theory · Computer Science 2016-04-11 Yu Liu , Osvaldo Simeone , Alexander M. Haimovich , Wei Su

Gaussian belief propagation (GaBP) is an iterative message-passing algorithm for inference in Gaussian graphical models. It is known that when GaBP converges it converges to the correct MAP estimate of the Gaussian random vector and simple…

Information Theory · Computer Science 2010-03-23 Jason K. Johnson , Danny Bickson , Danny Dolev

Integrated sensing and communication (ISAC) can reduce beam-training overhead in mmWave vehicle-to-infrastructure (V2I) links by enabling in-band sensing-based beam prediction, while exteroceptive sensors can further enhance the prediction…

Signal Processing · Electrical Eng. & Systems 2026-01-06 Abidemi Orimogunje , Hyunwoo Park , Igbafe Orikumhi , Sunwoo Kim , Dejan Vukobratovic

In diffusion-based molecular communication, information is transferred from a transmitter to a receiver using molecular carriers. The low achievable data rate is the main disadvantage of diffusion-based molecular over radio-based…

Emerging Technologies · Computer Science 2018-09-18 Tayyebeh Jahani-Nezhad , Foroogh S. Tabataba

Integrated sensing and communication (ISAC) has emerged as a pivotal technology for next-generation wireless networks, enabling simultaneous data transmission and environmental sensing. However, existing ISAC systems face fundamental…

Signal Processing · Electrical Eng. & Systems 2026-02-18 Amirhossein Taherpour , Abbas Taherpour , Tamer Khattab

In this paper, we propose a transmission mechanism for a reconfigurable intelligent surface (RIS)-assisted millimeter wave (mmWave) system based on cluster index modulation (CIM), named best-gain optimized cluster selection CIM (BGCS-CIM).…

Signal Processing · Electrical Eng. & Systems 2023-07-11 Mahmoud Raeisi , Asil Koc , Ibrahim Yildirim , Ertugrul Basar , Tho Le-Ngoc

Distributed integrated sensing and communication (DISAC) systems are key enablers for 6G networks, offering the capability to jointly track multiple targets using spatially distributed base stations (BSs). A fundamental challenge in DISAC…

Signal Processing · Electrical Eng. & Systems 2025-07-01 Liping Bai , Yu Ge , Henk Wymeersch

A neighborhood restricted Mixed Gibbs Sampling (MGS) based approach is proposed for low-complexity high-order modulation large-scale Multiple-Input Multiple-Output (LS-MIMO) detection. The proposed LS-MIMO detector applies a neighborhood…

Information Theory · Computer Science 2021-04-20 Alex Mussi , Taufik Abrão

Integrated sensing and communications (ISAC) promises new use cases for mobile communication systems by reusing the communication signal for radar-like sensing. However, sensing and communications (S&C) impose conflicting requirements on…

Signal Processing · Electrical Eng. & Systems 2026-02-23 Benedikt Geiger , Fan Liu , Shihang Lu , Andrej Rode , Daniel Gil Gaviria , Charlotte Muth , Laurent Schmalen

Energy efficiency (EE) optimization of millimeter wave (mm-Wave) massive multiple-input multiple-output (MIMO) systems is emerging as an important challenge for the fifth generation (5G) mobile communication systems. However, the power of…

Signal Processing · Electrical Eng. & Systems 2019-01-03 Kai Chen , Jing Yang , Xiaohu Ge , Yonghui Li , Lin Tian , Jinglin Shi

In this work, the behaviour of bit error rates for both conventional and massive MIMO systems with high order constellations, which are essential to achieve spectral efficiency for 5G standard communications, has been evaluated. We have…

Signal Processing · Electrical Eng. & Systems 2018-08-08 Vishnupraneeth Reddy , Pravir Singh Gupta , Gwan Seong Choi

This work initiates the efforts to design an intelligent/cognitive nano receiver operating in Terahertz (THz) band. Specifically, we investigate two essential ingredients of an intelligent nano receiver---modulation mode detection (to…

Information Theory · Computer Science 2018-07-31 M. Ozair Iqbal , M. Mahboob Ur Rahman , M. Ali Imran , Akram Alomainy , Qammer H. Abbasi

A new message-passing (MP) method is considered for the matrix completion problem associated with recommender systems. We attack the problem using a (generative) factor graph model that is related to a probabilistic low-rank matrix…

Information Theory · Computer Science 2010-07-06 Byung-Hak Kim , Arvind Yedla , Henry D. Pfister