Distributed algorithm for collaborative detection in cognitive radio networks

Yingbin Liang, Lifeng Lai, John Halloran

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

2 Scopus citations

Abstract

A cognitive radio wireless network is investigated, in which a number of primary users (PUs) transmit in orthogonal frequency bands. There are also a number of secondary users (SUs) in the network, which monitor transmission opportunities in these frequency bands by collaboratively detecting whether each PU is transmitting. Each SU can participate in detecting only one PU's transmission at a time although it may locate in multiple PUs' detection ranges. A network management issue is studied, which addresses the best assignment of SUs to detecting PUs so that the overall probability of detection error is minimized. A distributed implementation of the elimination algorithm is proposed to efficiently find the best assignment by drawing connection between the current problem and the inference problem in the context of probabilistic graphic models. The graphic representation of the problem is also discussed.

Original languageEnglish (US)
Title of host publication2009 47th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2009
Pages394-399
Number of pages6
DOIs
StatePublished - Dec 1 2009
Event2009 47th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2009 - Monticello, IL, United States
Duration: Sep 30 2009Oct 2 2009

Publication series

Name2009 47th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2009

Other

Other2009 47th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2009
CountryUnited States
CityMonticello, IL
Period9/30/0910/2/09

ASJC Scopus subject areas

  • Computer Science(all)
  • Control and Systems Engineering
  • Communication

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    Liang, Y., Lai, L., & Halloran, J. (2009). Distributed algorithm for collaborative detection in cognitive radio networks. In 2009 47th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2009 (pp. 394-399). [5394792] (2009 47th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2009). https://doi.org/10.1109/ALLERTON.2009.5394792