Energy-efficient power allocation scheme for multi-relay cooperative communications

Yinlong Xu, Zhiquan Bai, Bing Wang, Peng Gong*, Kyungsup Kwak

*Corresponding author for this work

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

10 Citations (Scopus)

Abstract

For the increasing cost of energy and infrastructures of wireless communication systems, energy-efficient communication technologies become an important concern for the standardization authorities and cellular operators. In this paper, we propose an energy-efficient relay selection and power allocation strategy subject to a total power constraint. The proposed scheme first selects the transmission mode according to the energy efficiency of the different transmission link. Then, we analyze the energy efficiency of the proposed system and present the optimal number of the relay nodes and the best power distribution factors in broadcasting phase and the cooperative transmission phase. Closed-form expressions of the energy efficiency of the proposed scheme are derived. Simulation results show that the proposed scheme achieves good energy efficiency in both low and high signal-to-noise ratio region.

Original languageEnglish
Title of host publication16th International Conference on Advanced Communication Technology
Subtitle of host publicationContent Centric Network Innovation!, ICACT 2014 - Proceeding
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages260-264
Number of pages5
ISBN (Print)9788996865032
DOIs
Publication statusPublished - 2014
Event16th International Conference on Advanced Communication Technology: Content Centric Network Innovation!, ICACT 2014 - PyeongChang, Korea, Republic of
Duration: 16 Feb 201419 Feb 2014

Publication series

NameInternational Conference on Advanced Communication Technology, ICACT
ISSN (Print)1738-9445

Conference

Conference16th International Conference on Advanced Communication Technology: Content Centric Network Innovation!, ICACT 2014
Country/TerritoryKorea, Republic of
CityPyeongChang
Period16/02/1419/02/14

Keywords

  • Cooperative Communication
  • Energy Efficient
  • Green Communication
  • Outage Probability
  • Power Allocation

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