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On the Impact of Carrier Sense Based Medium Access Control on Cooperative Schemes in Wireless Ad Hoc Networks

Munari, Andrea and Levorato, Marco and Zorzi, Michele (2012) On the Impact of Carrier Sense Based Medium Access Control on Cooperative Schemes in Wireless Ad Hoc Networks. IEEE Transactions on Communications. ISSN 0090-6778. (Submitted)

Full text not available from this repository.

Abstract

Cooperative techniques have been shown to significantly improve the performance of wireless networks. Despite being a mature technology in single communication link scenarios, their implementation in wider, and practical, networks poses several challenges which have not been fully identified and understood so far. In this paper, the implementation of cooperative communications in non-centralized ad hoc networks with sensing-based channel access is extensively discussed. Both analysis and simulation are employed to provide a clear understanding of the mutual influence between the link layer contention mechanism and relaying protocols. Results show that sensing-based channel access significantly hampers the effectiveness of cooperation by biasing the spatial distribution of available relays, and by inducing a level of spatial and temporal correlation of interference that diminishes the diversity improvement on which cooperative gains are founded. Moreover, the efficiency reduction entailed by several practical protocol issues related to carrier sense multiple access which are typically neglected in the literature is thoroughly investigated.

Document Type:Article
Title:On the Impact of Carrier Sense Based Medium Access Control on Cooperative Schemes in Wireless Ad Hoc Networks
Authors:
AuthorsInstitution or Email of Authors
Munari, Andreaandrea.munari@dlr.de
Levorato, Marcolevorato@stanford.edu
Zorzi, Michelezorzi@dei.unipd.it
Date:October 2012
Journal or Publication Title:IEEE Transactions on Communications
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
ISSN:0090-6778
Status:Submitted
Keywords:Cooperation, Wireless Ad Hoc Networks, Carrier sense
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Digital Networks
Deposited By: Andrea Munari
Deposited On:12 Jun 2012 10:48
Last Modified:29 Jun 2014 22:36

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