MMSE based power allocation for broadband cooperative communication with amplify-and-forward protocol

Fan Shuo Tseng*, Jwo-Yuh Wu, Ta-Sung Lee

*Corresponding author for this work

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

Abstract

This paper proposes a subcarrier power allocation scheme for broadband OFDM cooperative communications, in the typical single-relay scenario with the amplify-and-forward protocol. The design criterion is to minimize the mean square error (MSE) of the received signal at the destination. Relying on the Lagrange multiplier techniques we derive a closed-form solution of the optimal power loading factors. Numerical simulation result shows that the proposed scheme significantly improves the bit-error-rate performance when compared with the systems without power loading.

Original languageEnglish
Title of host publicationTENCON 2007 - 2007 IEEE Region 10 Conference
DOIs
StatePublished - 1 Dec 2007
EventIEEE Region 10 Conference, TENCON 2007 - Taipei, Taiwan
Duration: 30 Oct 20072 Nov 2007

Publication series

NameIEEE Region 10 Annual International Conference, Proceedings/TENCON

Conference

ConferenceIEEE Region 10 Conference, TENCON 2007
CountryTaiwan
CityTaipei
Period30/10/072/11/07

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