Opportunistic transmitter selection for selfless overlay cognitive radios

Mohammad Shaqfeh, Ammar Zafar, Hussein Alnuweiri, Mohamed Slim Alouini

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

1 Citation (Scopus)

Abstract

We propose an opportunistic strategy to grant channel access to the primary and secondary transmitters in causal selfless overlay cognitive radios over block-fading channels. The secondary transmitter helps the primary transmitter by relaying the primary messages opportunistically, aided by a buffer to store the primary messages temporarily. The optimal channel-aware transmitter- selection strategy is the solution of the maximization of the average secondary rate under the average primary rate requirement and the buffer stability constraints. Numerical results demonstrate the gains of the proposed opportunistic selection strategy.

Original languageEnglish
Title of host publicationConference Record of the 47th Asilomar Conference on Signals, Systems and Computers
PublisherIEEE Computer Society
Pages1488-1492
Number of pages5
ISBN (Print)9781479923908
DOIs
Publication statusPublished - 2013
Event2013 47th Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
Duration: 3 Nov 20136 Nov 2013

Other

Other2013 47th Asilomar Conference on Signals, Systems and Computers
CountryUnited States
CityPacific Grove, CA
Period3/11/136/11/13

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Keywords

  • block-fading channels
  • buffer-aided relaying
  • opportunistic scheduling
  • Overlay Cognitive Radio

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications

Cite this

Shaqfeh, M., Zafar, A., Alnuweiri, H., & Alouini, M. S. (2013). Opportunistic transmitter selection for selfless overlay cognitive radios. In Conference Record of the 47th Asilomar Conference on Signals, Systems and Computers (pp. 1488-1492). [6810543] IEEE Computer Society. https://doi.org/10.1109/ACSSC.2013.6810543