Energy-efficient cooperative relay selection for UWB based body area networks

Jie Ding, Eryk Dutkiewicz, Xiaojing Huang, Gengfa Fang

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

    15 Citations (Scopus)

    Abstract

    In this paper, an energy-efficient cooperative relay selection scheme is investigated for ultra-wideband (UWB) based wireless body area networks (WBANs). With a realistic nonlinear energy consumption model, the energy consumption for single-relay cooperation is established and the optimal power allocation for cooperation is derived accordingly to minimize the total energy consumption at a given relay location. Afterwards, an energy efficient relay selection criterion is described in detail. Simulation results verify the suitability of the criterion and show that, with the same desired spectral efficiency (SE), direct transmission is preferable for energy saving when the transmitter and receiver are located on the same side of the human body. However, at a suitable relay location and with large transmission distance, cooperative transmission can achieve a significant improvement on energy efficiency compared with direct transmission when the transmitter and receiver are located on the different sides of the human body.

    Original languageEnglish
    Title of host publicationICUWB 2013
    Subtitle of host publicationIEEE International Conference on Ultra-Wideband : proceedings : 15-18 September 2013, Sydney, Australia
    Place of PublicationPiscataway, NJ
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages97-102
    Number of pages6
    ISBN (Electronic)9781479909698, 9781479909681
    ISBN (Print)9781479909674
    DOIs
    Publication statusPublished - 2013
    Event2013 IEEE International Conference on Ultra-Wideband, ICUWB 2013 - Sydney, NSW, Australia
    Duration: 15 Sep 201318 Sep 2013

    Other

    Other2013 IEEE International Conference on Ultra-Wideband, ICUWB 2013
    CountryAustralia
    CitySydney, NSW
    Period15/09/1318/09/13

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