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Compute-forward multiple access (CFMA) is a transmission strategy which allows the receiver in a multiple access channel (MAC) to first decode linear combinations of the transmitted signals and then solve for individual messages. Compared…

Information Theory · Computer Science 2024-05-10 Lanwei Zhang , Jamie Evans , Jingge Zhu

This paper considers a full-duplex (FD) multiuser multiple-input single-output system where a base station simultaneously serves both uplink (UL) and downlink (DL) users on the same time-frequency resource. The crucial barriers in…

Signal Processing · Electrical Eng. & Systems 2019-03-18 Hieu V. Nguyen , Van-Dinh Nguyen , Octavia A. Dobre , Yongpeng Wu , Oh-Soon Shin

In Cognitive Radio (CR) ad hoc networks, secondary users (SU) attempt to utilize valuable spectral resources without causing significant interference to licensed primary users (PU). While there is a large body of research on spectrum…

Networking and Internet Architecture · Computer Science 2012-10-31 Yuan Lu , Alexandra Duel-Hallen

Multi-static integrated sensing and communication (ISAC) technology, which can achieve a wider coverage range and avoid self-interference, is an important trend for the future development of ISAC. Existing multi-static ISAC designs are…

Systems and Control · Electrical Eng. & Systems 2024-06-14 Fan Zeng , Ruoyun Liu , Xiaoyu Sun , Jingxuan Yu , Jiamin Li , Pengchen Zhu , Dongming Wang , Xiaohu You

We investigate a cognitive radio scenario involving a single cognitive transmitter equipped with $\mathcal{K}$ antennas sharing the spectrum with $\mathcal{M}$ primary users (PUs) transmitting over orthogonal bands. Each terminal has a…

Information Theory · Computer Science 2014-06-10 Ahmed El Shafie , Tamer Khattab

The following paper models a secure full duplex (FD) integrated sensing and communication (ISAC) scenario, where malicious eavesdroppers aim at intercepting the downlink (DL) as well as the uplink (UL) information exchanged between the dual…

Signal Processing · Electrical Eng. & Systems 2023-12-19 Ahmad Bazzi , Marwa Chafii

This paper investigates the throughput for wireless network with full-duplex radios using stochastic geometry. Full-duplex (FD) radios can exchange data simultaneously with each other. On the other hand, the downside of FD transmission is…

Information Theory · Computer Science 2014-09-29 Zhen Tong , Martin Haenggi

In this paper, we study Full Duplex (FD) Multiple-Input Multiple-Output (MIMO) radios for simultaneous data communication and control information exchange. Capitalizing on a recently proposed FD MIMO architecture combining digital transmit…

Information Theory · Computer Science 2020-03-17 Md Atiqul Islam , George C. Alexandropoulos , Besma Smida

5G New Radio paves the way for introducing novel multi-service radio resource management solutions tailored for enhanced Mobile Broadband and Ultra-Reliable Low Latency Communication service classes. Multi-Channel Access is a family of such…

Networking and Internet Architecture · Computer Science 2019-03-14 Nurul Huda Mahmood , Daniela Laselva , David Palacios , Mustafa Emara , Miltiades C. Filippou , Dong Min Kim , Isabel de-la-Bandera

In this paper, we investigate the power efficient resource allocation algorithm design for secure multiuser wireless communication systems employing a full-duplex (FD) base station (BS) for serving multiple half-duplex (HD) downlink (DL)…

Information Theory · Computer Science 2015-09-07 Yan Sun , Derrick Wing Kwan Ng , Jun Zhu , Robert Schober

In cognitive radio (CR) networks, there are scenarios where the secondary (lower priority) users intend to communicate with each other by opportunistically utilizing the transmit spectrum originally allocated to the existing primary (higher…

Information Theory · Computer Science 2009-11-13 Rui Zhang , Ying Chang Liang

This work explores a multiple transmit antenna setting in a multi-access coded caching (MACC) network where each user accesses more than one cache. A MACC network has $K$ users and $K$ caches, and each user has access to $r < K$ consecutive…

Information Theory · Computer Science 2025-01-23 Elizabath Peter , K. K. Krishnan Namboodiri , B. Sundar Rajan

This paper investigates optimal scheduling for a cognitive multi-hop underwater acoustic network with a primary user interference constraint. The network consists of primary and secondary users, with multi-hop transmission adopted for both…

Systems and Control · Electrical Eng. & Systems 2023-12-05 Chen Peng , Urbashi Mitra

Designing decentralized policies for wireless communication networks is a crucial problem, which has only been partially solved in the literature so far. In this paper, we propose the Decentralized Markov Decision Process (Dec-MDP)…

Information Theory · Computer Science 2017-01-10 Alessandro Biason , Subhrakanti Dey , Michele Zorzi

Cognitive radio methodologies have the potential to dramatically increase the throughput of wireless systems. Herein, control strategies which enable the superposition in time and frequency of primary and secondary user transmissions are…

Information Theory · Computer Science 2015-03-14 Marco Levorato , Urbashi Mitra , Michele Zorzi

Recent studies indicate the feasibility of full-duplex (FD) bidirectional wireless communications. Due to its potential to increase the capacity, analyzing the performance of a cellular network that contains full-duplex devices is crucial.…

Networking and Internet Architecture · Computer Science 2018-02-12 Peyman Tehrani , Farshad Lahouti , Michele Zorzi

In this paper, we investigate the resource allocation design for intelligent reflecting surface (IRS)-assisted full-duplex (FD) cognitive radio systems. In particular, a secondary network employs an FD base station (BS) for serving multiple…

Information Theory · Computer Science 2020-03-18 Dongfang Xu , Xianghao Yu , Yan Sun , Derrick Wing Kwan Ng , Robert Schober

Distributed multichannel active noise control (DMCANC), which utilizes multiple individual processors to achieve a global noise reduction performance comparable to conventional centralized multichannel active noise control (MCANC), has…

Systems and Control · Electrical Eng. & Systems 2025-03-25 Junwei Ji , Dongyuan Shi , Woon-Seng Gan

We present an unsourced multiple access (UMAC) scheme tailored to high-mobility wireless channels. The proposed construction is based on orthogonal time frequency space (OTFS) modulation and sparse interleaver division multiple access…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Davide Bergamasco , Federico Clazzer , Paolo Casari

We show that for the multi-antenna Gaussian multi-access channel (MAC) and broadcast channel (BC) with perfect feedback, the rate regions achieved by linear-feedback coding schemes (called linear-feedback capacity regions) coincide when the…

Information Theory · Computer Science 2014-04-10 Selma Belhadj Amor , Yossef Steinberg , Michèle Wigger