Maximum flow-segment based channel assignment and routing in cognitive radio networks

Changliang Zheng*, Ren Ping Liu, Xun Yang, Iain B. Collings, Zheng Zhou, Eryk Dutkiewicz

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

5 Citations (Scopus)

Abstract

In multi-hop cognitive radio networks (CRNs), there can be dramatic increase in end-to-end delay when a traffic flow switches between a number of channels along its path. We propose a new Maximum Flow-Segment (MFS) based scheme to channel assignment in CRN by minimizing the number of times the channel is switched along a flow. Our MFS based scheme has been efficiently integrated into the AODV on-demand routing protocol. We demonstrate that our MFS based scheme reduces the number of channel switches for the traffic flows and reduces the end-to-end delay by 50%. Our scheme also minimizes the routing overhead, and achieves a higher and more stable throughput than the link based approach.

Original languageEnglish
Title of host publication2011 IEEE 73rd Vehicular Technology Conference, VTC Spring 2011
Subtitle of host publicationProceedings
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-6
Number of pages6
ISBN (Electronic)9781424483310, 9781424483303
ISBN (Print)9781424483327
DOIs
Publication statusPublished - 2011
Event2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring - Budapest, Hungary
Duration: 15 May 201118 May 2011

Publication series

NameIEEE Vehicular Technology Conference VTC
PublisherIEEE

Conference

Conference2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring
CountryHungary
CityBudapest
Period15/05/1118/05/11

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