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This paper considers an amplify-and-forward relay network with fading states. Amplify-and-forward scheme (along with its variations) is the core mechanism for enabling cooperative communication in wireless networks, and hence understanding…

Information Theory · Computer Science 2009-08-06 Jubin Jose , Lei Ying , Sriram Vishwanath

In this letter, we present an end-to-end performance analysis of dual-hop project-and-forward relaying in a realistic scenario, where the source-relay and the relay-destination links are experiencing MIMO-pinhole and Rayleigh channel…

Information Theory · Computer Science 2016-03-10 Hatim Chergui , Mustapha Benjillali , Samir Saoudi

The end-to-end throughput of multi-hop communication in wireless ad hoc networks is affected by the conflict between forwarding nodes. It has been shown that sending more packets than maximum achievable end-to-end throughput not only fails…

Networking and Internet Architecture · Computer Science 2019-05-15 Shahbaz Rezaei , Mohammed Gharib , Ali Movaghar

Traditional end-to-end congestion control mechanisms assume data transferring happens between each pair user. In contrast, in a P2P network, many peers may locally keep a copy of a specific data object. If the path between a pair of peers…

Networking and Internet Architecture · Computer Science 2010-03-30 Yong-Xiang Zhao , Chang-Jia Chen

We design a cross-layer approach to optimize the joint use of multi-packet reception and network coding, in order to relieve congestion. We construct a model for the behavior of the 802.11 MAC and apply it to several key canonical topology…

Networking and Internet Architecture · Computer Science 2011-02-01 Jason Cloud , Linda Zeger , Muriel Médard

This paper investigates the benefits of Amplify-and-Forward (AF) relaying in the setup of multi-antenna wireless networks. The concept of Random Sequential (RS) relaying is previously introduced in the literature and showed that it achieves…

Information Theory · Computer Science 2009-12-22 Shahab Oveis Gharan , Alireza Bayesteh , Amir K. Khandani

Based on a stochastic geometry framework, we establish an analysis of the multi-hop spatial reuse aloha protocol (MSR-Aloha) in ad hoc networks. We compare MSR-Aloha to a simple routing strategy, where a node selects the next relay of the…

Information Theory · Computer Science 2010-01-20 Olfa Ben Sik Ali , Christian Cardinal , Francois Gagnon

A key feature in the design of any MAC protocol is the throughput it can provide. In wireless networks, the channel of a user is not fixed but varies randomly. Thus, in order to maximize the throughput of the MAC protocol at any given time,…

Information Theory · Computer Science 2009-09-17 Syed T. Qaseem , Tareq Y. Al-Naffouri

We consider a half-duplex wireless relay network with hybrid-automatic retransmission request (HARQ) and Rayleigh fading channels. In this paper, we analyze the outage probability of the multi-relay delay-limited HARQ system with…

Information Theory · Computer Science 2012-02-14 Behrouz Maham , Aydin Behnad , Merouane Debbah

We consider a multipoint-to-point network in which sensors periodically send measurements to a gateway. The system uses Long Range (LoRa) communications in a frequency band with duty-cycle limits. Our aim is to enhance the reliability of…

Networking and Internet Architecture · Computer Science 2019-04-15 Siddhartha Borkotoky , Christian Bettstetter , Udo Schilcher , Christian Raffelsberger

In this work, we analyze the probabilistic cooperation of a full-duplex relay in a multiuser random-access network. The relay is equipped with on/off modes for the receiver and the transmitter independently. These modes are modeled as…

Networking and Internet Architecture · Computer Science 2016-07-11 Ioannis Avgouleas , Nikolaos Pappas , Di Yuan , Vangelis Angelakis

Widespread deployment of relays can yield a significant boost in the throughput of forthcoming wireless networks. However, the optimal operation of large relay networks is still infeasible. This paper presents two approaches for the…

Signal Processing · Electrical Eng. & Systems 2023-08-25 Itsik Bergel

This paper presents a novel stochastic geometry approach to the connectivity of milimeter wave (mmWave) networks with multi-hop relaying. The random positions and shapes of obstacles in the radio environment are modeled as a Boolean model,…

Information Theory · Computer Science 2014-12-23 Xingqin Lin , Jeffrey G. Andrews

We present a novel access protocol for crowd scenarios in massive MIMO (Multiple-input multiple-output) systems. Crowd scenarios are characterized by a large number of users with intermittent access behavior, whereby orthogonal scheduling…

Information Theory · Computer Science 2016-05-20 Jesper H. Sørensen , Elisabeth de Carvalho , Čedomir Stefanović , Petar Popovski

Mixture-of-Experts (MoE) inference requires large-scale token exchange across devices, making dispatch and combine major bottlenecks in both prefill and decode. Beyond network transfer, routing-driven layout transformation, temporary relay,…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-11 Tianlun Hu , Tiancheng Hu , Shengsheng Litang , Sheng Wang , Xiaoming Bao , Yuxing Li , Wei Wang , Zhongzhe Hu , Lijun Li , Hongwei Sun , Jingbin Zhou

Random access protocols relying on the transmission of packet replicas in multiple slots and exploiting interference cancellation at the receiver have been shown to achieve per- formance competitive with that of orthogonal schemes. So far…

Information Theory · Computer Science 2017-07-03 Federico Clazzer , Enrico Paolini , Iacopo Mambelli , Cedomir Stefanovic

We investigate large wireless networks subject to security constraints. In contrast to point-to-point, interference-limited communications considered in prior works, we propose active cooperative relaying based schemes. We consider a…

Information Theory · Computer Science 2015-03-03 Mahtab Mirmohseni , Panagiotis Papadimitratos

Consider the communication of a single-user aided by a nearby relay involved in a large wireless network where the nodes form an homogeneous Poisson point process. Since this network is interference-limited the asymptotic error probability…

Information Theory · Computer Science 2011-03-14 Andres Altieri , Leonardo Rey Vega , Cecilia G. Galarza , Pablo Piantanida

In order to understand the key merits of multiuser diversity techniques in relay-assisted cellular multihop networks, this paper analyzes the spectral efficiency of opportunistic (i.e., channel-aware) scheduling algorithms over a fading…

Information Theory · Computer Science 2016-11-15 Ozgur Oyman

This paper studies a hierarchical over-the-air computation (AirComp) network over a large area, in which multiple relays are exploited to facilitate data aggregation from massive WDs. We present a two-phase amplify-and-forward (AF) relaying…

Information Theory · Computer Science 2022-01-25 Feng Wang , Jie Xu , Vincent K. N. Lau , Shuguang Cui
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