Unavailability-based partner selection algorithm for wireless ad hoc networks

Hsi-Lu Chao*, Ching Hsiang Chang

*Corresponding author for this work

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

Abstract

Wireless channel qualities vary and degrade due to fading and interference. Cooperative communication has characteristics of spatial diversity and virtual antenna, and thus it can improve communication efficiency significantly. One of the essential design issues in cooperative communication is partner selection mechanism. In this paper, we propose a partner selection algorithm which utilizes two decision factors: channel quality and unavailability. In this paper, channel quality is represented as signal-to-noise ratio, and unavailability of a node is the time duration it cannot act as a partner for its neighbors. When operating in cooperative mode, a source designates one neighbor, which satisfies the channel quality requirement and has the least unavailability value, as its partner. Furthermore, how to integrate the proposed partner selection mechanism with the IEEE 802.11 medium access control (MAC) protocol is elaborated. We evaluate our proposed algorithm by conducting simulations. From the simulation results, our proposed partner selection algorithm improves system throughput, reduces frame delivery time, and increases spatial channel reuse degree.

Original languageEnglish
Title of host publication2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008
DOIs
StatePublished - 1 Dec 2008
Event2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008 - Poznan, Poland
Duration: 15 Sep 200818 Sep 2008

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

Conference

Conference2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008
CountryPoland
CityPoznan
Period15/09/0818/09/08

Keywords

  • Cooperative communication
  • Network allocation vector
  • Partner
  • Spatial channel reuse
  • Unavailability

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