Joint relay assignment and channel allocation for energy-efficient cooperative communications

Peng Li, Song Guo, Zixue Cheng, Athanasios V. Vasilakos

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

16 Citations (Scopus)

Abstract

Cooperative communication (CC) has been proposed to achieve spatial diversity without requiring multiple antennas on a single device. Many efforts in exploiting the benefits of CC focus on improving the performance in terms of outage probability and channel capacity. However, the energy efficiency of CC, which is critical for the applications with energy constraints, has been little studied. In this paper, we study the problem of energy-efficient CC in cognitive radio networks by taking power control, relay assignment and channel allocation into consideration. We obtain the optimal power control for a single source-destination pair. After that, a heuristic algorithm is proposed to solve the the relay assignment and channel allocation problem for multiple source-destination pairs. Extensive simulations are conducted to show that the proposed algorithm can significantly improve the performance of energy efficiency over the direct transmission approach.
Original languageEnglish
Title of host publication2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
Pages626-630
Number of pages5
DOIs
Publication statusPublished - 21 Aug 2013
Externally publishedYes
Event2013 IEEE Wireless Communications and Networking Conference, WCNC 2013 - Shanghai, China
Duration: 7 Apr 201310 Apr 2013

Conference

Conference2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
Country/TerritoryChina
CityShanghai
Period7/04/1310/04/13

ASJC Scopus subject areas

  • Engineering(all)

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