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In this work, we investigate a multi-source multi-cast network with the aid of an arbitrary number of relays, where it is assumed that no direct link is available at each S-D pair. The aim is to find the fundamental limit on the maximal…

Information Theory · Computer Science 2014-06-05 Z. Chen , P. Fan , K. B. Letaief

In this paper, the impacts of imperfect channel covariance matrix on the spectral efficiency (SE) of cell-free distributed massive multiple-input multiple-output (MIMO) systems are analyzed. We propose to estimate the channel covariance…

Information Theory · Computer Science 2022-12-21 Feng Ye , Jiamin Li , Pengcheng Zhu , Dongming Wang , Xiaohu You

Multicast transmission, wherein the same packet must be delivered to multiple receivers, is an important aspect of sensor and tactical networks and has several distinctive traits as opposed to more commonly studied unicast networks.…

Information Theory · Computer Science 2010-10-26 Chun-Hung Liu , Jeffrey G. Andrews

The popularity of concurrent transmissions (CT) has soared after recent studies have shown their feasibility on the four physical layers specified by BLE 5, hence providing an alternative to the use of IEEE 802.15.4 for the design of…

Networking and Internet Architecture · Computer Science 2020-05-29 Michael Baddeley , Carlo Alberto Boano , Antonio Escobar-Molero , Ye Liu , Xiaoyuan Ma , Usman Raza , Kay Römer , Markus Schuß , Aleksandar Stanoev

The impacts of channel estimation errors, inter-cell interference, phase adjustment cost, and computation cost on an intelligent reflecting surface (IRS)-assisted system are severe in practice but have been ignored for simplicity in most…

Information Theory · Computer Science 2021-09-22 Yuhang Jia , Ying Cui , Wuyang Jiang

Cell-free (CF) integrated sensing and communication (ISAC) combines CF architecture with ISAC. CF employs distributed access points, eliminates cell boundaries, and enhances coverage, spectral efficiency, and reliability. ISAC unifies radar…

Signal Processing · Electrical Eng. & Systems 2026-05-12 Diluka Galappaththige , Mohammadali Mohammadi , Gayan Aruma Baduge , Chintha Tellambura

The transmitter optimization (i.e., steering vectors and power allocation) for a MISO Broadcast Channel (MISO-BC) subject to general linear constraints is considered. Such constraints include, as special cases, the sum power, the…

Information Theory · Computer Science 2015-05-14 Hoon Huh , Haralabos C. Papadopoulos , Giuseppe Caire

Integrated sensing and communication (ISAC) is a promising technology for 6G, with the goal of providing end-to-end information processing and inherent perception capabilities for future communication systems. Within ISAC emerging…

Signal Processing · Electrical Eng. & Systems 2024-03-04 Zhengyu Zhang , Ruisi He , Bo Ai , Mi Yang , Xuejian Zhang , Ziyi Qi , Yuan Yuan

The throughput efficiency of a wireless mesh network with potentially malicious external or internal interference can be significantly improved by equipping routers with multi-radio access over multiple channels. For reliably mitigating the…

Networking and Internet Architecture · Computer Science 2023-01-24 Yung-Fu Chen , Anish Arora

Integrated sensing and communication (ISAC) is expected to be one of the major features of 6G wireless networks. In an ISAC system, communications and sensing functionalities are jointly performed using the same waveform, frequency band and…

Information Theory · Computer Science 2025-09-16 Homa Nikbakht , Husheng Li , Zhu Han , H. Vincent Poor

Massive parallelisation has lead to a dramatic increase in available computational power. However, data transfer speeds have failed to keep pace and are the major limiting factor in the development of exascale computing. New algorithms must…

Dynamical Systems · Mathematics 2015-04-09 J. E. Bunder , A. J. Roberts , I. G. Kevrekidis

Integrated sensing and communication (ISAC), as a technology enabled seamless connection between communication and sensing, is regarded a core enabling technology for these applications. However, the accuracy of single-node sensing in ISAC…

Signal Processing · Electrical Eng. & Systems 2025-07-01 Haotian Liu , Zhiqing Wei , Luyang Sun , Ruizhong Xu , Yixin Zhang , Zhiyong Feng

Future cellular networks are expected to support new communication paradigms such as machine-type communication (MTC) services along with conventional human-type communication (HTC) services. This requires base stations to serve a large…

Information Theory · Computer Science 2018-08-29 Kamil Senel , Emil Björnson , Erik G. Larsson

Measurement-based analysis of software timing behavior provides important insight and evidence for flight certification of modern avionics systems. For multicore systems, however, this analysis is challenging due to interference effects…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-01-08 Steven H. VanderLeest , Samuel R. Thompson

WCET (Worst-Case Execution Time) estimation on multicore architecture is particularly challenging mainly due to the complex accesses over cache shared by multiple cores. Existing analysis identifies possible contentions between parallel…

The state-dependent memoryless channel (SDMC) is employed to model the integrated sensing and communication (ISAC) system, where the transmitter conveys messages to the receiver while simultaneously estimating the state parameter of…

Information Theory · Computer Science 2026-01-14 Lugaoze Feng , Guocheng Lv , Xunan Li , Ye Jin

Unlike optical CCDs, near-infrared detectors, which are based on CMOS hybrid readout technology, typically suffer from electrical crosstalk between the pixels. The interpixel capacitance (IPC) responsible for the crosstalk affects the…

Instrumentation and Methods for Astrophysics · Physics 2016-07-06 Arun Kannawadi , Charles A. Shapiro , Rachel Mandelbaum , Christopher M. Hirata , Jeffrey W. Kruk , Jason D. Rhodes

Orthogonal frequency division multiplexing (OFDM) is one of the most widely adopted waveforms for integrated sensing and communication (ISAC) systems, owing to its high spectral efficiency and compatibility with modern communication…

Signal Processing · Electrical Eng. & Systems 2025-10-16 Kawon Han , Kaitao Meng , Alexandra Chatzicharistou , Christos Masouros

Integrated Sensing and Communication (ISAC) design is crucial for 6G and harmonizes environmental data sensing with communication, emphasizing the need to understand and model these elements. This paper delves into dual-channel models for…

Signal Processing · Electrical Eng. & Systems 2025-07-17 Alejandro Castilla , Saúl Fenollosa , Monika Drozdowska , Alejandro Lopez-Escudero , Sergio Micò-Rosa , Narcis Cardona

Integrating coded caching (CC) into multi-input multi-output (MIMO) setups significantly enhances the achievable degrees of freedom (DoF). We consider a cache-aided MIMO configuration with a CC gain $t$, where a server with $L$ Tx-antennas…

Information Theory · Computer Science 2023-11-27 Mohammad NaseriTehrani , MohammadJavad Salehi , Antti Tölli
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