PERFORMANCE EVALUATION OF MULTIPATH ROUTING WITH MULTICHANNEL AD HOC NETWORKS

PERFORMANCE EVALUATION OF MULTIPATH ROUTING WITH MULTICHANNEL AD HOC NETWORKS

Bibliographic Details
Main Author: TALWAR, SUMEET
Language:English
Published: University of Cincinnati / OhioLINK 2003
Subjects:
Computer Science
AD HOC networks
multichannel MAC
multipath
IEEE 802.11
route coupling
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=ucin1054312541
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-ucin10543125412021-08-03T06:09:17Z PERFORMANCE EVALUATION OF MULTIPATH ROUTING WITH MULTICHANNEL AD HOC NETWORKS TALWAR, SUMEET Computer Science AD HOC networks multichannel MAC multipath IEEE 802.11 route coupling A mobile ad hoc network is a collection of autonomous nodes connected to each other in a peer-to-peer fashion on a wireless medium. Such networks are used in emerging applications which require co-operative mobile data exchange in areas where there is little or no infrastructure available or where providing such infrastructure is not cost effective. Efficient dynamic routing is a major research challenge in such a network. Multipath routing provides a strong potential for efficient routing by maintaining multiple routes. This provides some form of fault-tolerance, as alternate paths can be used when one breaks. Also, data packets can be forwarded via multiple paths concurrently thus exploiting a larger network capacity. However, CSMA (carrier-sense multiple access) being a dominant form of channel access protocol in mobile ad hoc network, multipath forwarding is often unable to exploit its full potential. This is because multiple paths may form in each others’ radio neighborhood limiting spatial diversity. Data transmission in one path causes sufficient interference in another such that only one path can be used at a time. This phenomenon has been known as “route coupling.” We investigate the use of multichannel CSMA-based medium access protocols to reduce the impact of such route coupling. We use two such multichannel protocols to demonstrate that a significant throughput improvement is possible at high offered loads relative to the single channel CSMA for multipath data forwarding scenarios. One of the protocols chooses the channel based on interference power measurement at the sender. The other chooses a unique channel for each path. Our study shows that the multichannel protocols are able to limit the impact of interference between neighboring transmissions effectively. 2003-06-30 English text University of Cincinnati / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ucin1054312541 http://rave.ohiolink.edu/etdc/view?acc_num=ucin1054312541 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Computer Science
AD HOC networks
multichannel MAC
multipath
IEEE 802.11
route coupling
spellingShingle Computer Science
AD HOC networks
multichannel MAC
multipath
IEEE 802.11
route coupling
TALWAR, SUMEET
PERFORMANCE EVALUATION OF MULTIPATH ROUTING WITH MULTICHANNEL AD HOC NETWORKS
author TALWAR, SUMEET
author_facet TALWAR, SUMEET
author_sort TALWAR, SUMEET
title PERFORMANCE EVALUATION OF MULTIPATH ROUTING WITH MULTICHANNEL AD HOC NETWORKS
title_short PERFORMANCE EVALUATION OF MULTIPATH ROUTING WITH MULTICHANNEL AD HOC NETWORKS
title_full PERFORMANCE EVALUATION OF MULTIPATH ROUTING WITH MULTICHANNEL AD HOC NETWORKS
title_fullStr PERFORMANCE EVALUATION OF MULTIPATH ROUTING WITH MULTICHANNEL AD HOC NETWORKS
title_full_unstemmed PERFORMANCE EVALUATION OF MULTIPATH ROUTING WITH MULTICHANNEL AD HOC NETWORKS
title_sort performance evaluation of multipath routing with multichannel ad hoc networks
publisher University of Cincinnati / OhioLINK
publishDate 2003
url http://rave.ohiolink.edu/etdc/view?acc_num=ucin1054312541
work_keys_str_mv AT talwarsumeet performanceevaluationofmultipathroutingwithmultichanneladhocnetworks
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