High throughput interweave cooperative wireless MAC protocol for congested environment

Choong Hock Mar, Peng Yong Kong, Chen Khong Tham

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

CSMA/CA wireless MAC protocol is adopted in many standards. However, its performance at high contention level is less than desirable due to prolonged backoff period and collisions. We propose a novel cooperative MAC based on the Interweave Cognitive framework to combat high contention. In our setup, we incorporate a subset of self-organizing advanced nodes that opportunistically switch to a contention-free MAC protocol to ease network congestion in a cognitive and cooperative manner. Consequently, the whole network benefits from a higher and more stable throughput even at high contention level. Our theoretical and simulation results demonstrate that IC-MAC is effective in reducing the number of backlogged nodes and improving the throughput of up to 20% relative to CSMA/CA MAC.

Original languageBritish English
Title of host publication2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings
DOIs
StatePublished - 2010
EventIEEE Wireless Communications and Networking Conference 2010, WCNC 2010 - Sydney, NSW, Australia
Duration: 18 Apr 201021 Apr 2010

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
ISSN (Print)1525-3511

Conference

ConferenceIEEE Wireless Communications and Networking Conference 2010, WCNC 2010
Country/TerritoryAustralia
CitySydney, NSW
Period18/04/1021/04/10

Keywords

  • Congested network
  • Cooperative
  • CSMA/CA
  • High contention
  • MAC
  • TDMA
  • Wireless network

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