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Network coding and cooperative communication have received considerable attention from the research community recently in order to mitigate the adverse effects of fading in wireless transmissions and at the same time to achieve high…

信息论 · 计算机科学 2010-03-29 Hakan Topakkaya , Zhengdao Wang

Limitation of the cost of coordination and contention among a large number of nodes calls for grant-free approaches, exploiting physical layer techniques to solve collisions. Successive Interference Cancellation (SIC) is becoming a key…

信号处理 · 电气工程与系统科学 2024-06-28 Andrea Baiocchi , Asmad Razzaque

We consider the problem of shared randomness-assisted multiple access channel (MAC) simulation for product inputs and characterize the one-shot communication cost region via almost-matching inner and outer bounds in terms of the smooth…

信息论 · 计算机科学 2026-03-26 Aditya Nema , Sreejith Sreekumar , Mario Berta

Network function computation is an active topic in network coding, with much recent progress for linear (over a finite field) computations over broadcast (LCBC) and multiple access (LCMAC) channels. Over a quantum multiple access channel…

信息论 · 计算机科学 2025-10-22 Yuhang Yao , Syed A. Jafar

An interactive function computation problem in a collocated network is studied in a distributed block source coding framework. With the goal of computing a desired function at the sink, the source nodes exchange messages through a sequence…

信息论 · 计算机科学 2016-11-17 Nan Ma , Prakash Ishwar

In this paper, we obtain the scaling laws of the sum-rate capacity of a MIMO X-channel, a 2 independent sender, 2 independent receiver channel with messages from each transmitter to each receiver, at high signal to noise ratios (SNR). The…

信息论 · 计算机科学 2007-07-13 Natasha Devroye , Masoud Sharif

Rate-Splitting Multiple Access (RSMA) has emerged as a flexible and powerful framework for wireless networks. In this paper, we investigate the user fairness of downlink multi-antenna RSMA in short-packet communications with/without…

信息论 · 计算机科学 2022-12-15 Yunnuo Xu , Yijie Mao , Onur Dizdar , Bruno Clerckx

We consider the problem of evaluating the cumulative distribution function (CDF) of the sum of order statistics, which serves to compute outage probability (OP) values at the output of generalized selection combining receivers. Generally,…

统计计算 · 统计学 2017-11-15 Nadhir Ben Rached , Zdravko Botev , Abla Kammoun , Mohamed-Slim Alouini , Raul Tempone

Point-to-point permutation channels are useful models of communication networks and biological storage mechanisms and have received theoretical attention in recent years. Propelled by relevant advances in this area, we analyze the…

信息论 · 计算机科学 2024-07-25 William Lu , Anuran Makur

Selection combining (SC) at the destination for differential amplify-and-forward (AF) relaying is attractive as it does not require channel state information as compared to the semi maximum-ratio-combining (semi-MRC) while delivering close…

信息论 · 计算机科学 2014-04-01 M. R. Avendi , Ha H. Nguyen

Interference is a fundamental feature of the wireless channel. To better understand the role of cooperation in interference management, the two-user Gaussian interference channel where the destination nodes can cooperate by virtue of being…

信息论 · 计算机科学 2011-01-28 Vinod M. Prabhakaran , Pramod Viswanath

This paper explores the multi-access distributed computing (MADC) model, a novel distributed computing framework where mapper and reducer nodes are distinct entities. Unlike traditional MapReduce frameworks, MADC leverages coding-theoretic…

信息论 · 计算机科学 2025-08-08 Shanuja Sasi , Onur Günlü

This paper analyzes the effective capacity of delay constrained machine type communication (MTC) networks operating in the finite blocklength regime. First, we derive a closed-form mathematical approximation for the effective capacity in…

信息论 · 计算机科学 2018-08-23 Mohammad Shehab , Endrit Dosti , Hirley Alves , Matti Latva-aho

In the Number On the Forehead (NOF) multiparty communication model, $k$ players want to evaluate a function $F : X_1 \times\cdots\times X_k\rightarrow Y$ on some input $(x_1,\dots,x_k)$ by broadcasting bits according to a predetermined…

计算复杂性 · 计算机科学 2018-09-19 Yassine Hamoudi

This paper presents an approximate wireless communication scheme for federated learning (FL) model aggregation in the uplink transmission. We consider a realistic channel that reveals bit errors during FL model exchange in wireless…

分布式、并行与集群计算 · 计算机科学 2023-04-10 Xiang Ma , Haijian Sun , Rose Qingyang Hu , Yi Qian

Multicell joint processing can mitigate inter-cell interference and thereby increase the spectral efficiency of cellular systems. Most previous work has assumed phase-aligned (coherent) transmissions from different base transceiver stations…

信息论 · 计算机科学 2016-11-17 Mingguang Xu , Dongning Guo , Michael L. Honig

We study upper bounds on the sum-rate of multiple-unicasts. We approximate the Generalized Network Sharing Bound (GNS cut) of the multiple-unicasts network coding problem with $k$ independent sources. Our approximation algorithm runs in…

信息论 · 计算机科学 2015-11-17 Karthikeyan Shanmugam , Megasthenis Asteris , Alexandros G. Dimakis

In this letter, we investigate the performance of Max Minimum Fairness (MMF) for uplink Rate-Splitting Multiple Access (RSMA) in short-packet communications. Specifically, considering a Single-Input Single-Output (SISO) Multiple Access…

信息论 · 计算机科学 2024-02-20 Jiawei Xu , Yijie Mao

In this paper, a backscatter cooperation (BC) scheme is proposed for non-orthogonal multiple access (NOMA) downlink transmission. The key idea is to enable one user to split and then backscatter part of its received signals to improve the…

This paper proposes a new cooperative protocol which involves cooperation between primary and secondary users. We consider a cognitive setting with one primary user and multiple secondary users. The time resource is partitioned into…

网络与互联网体系结构 · 计算机科学 2014-07-03 Ahmed El Shafie , Tamer Khattab