Title: MMSE based power allocation for broadband cooperative communication with amplify-and-forward protocol
Authors: Tseng, Fan-Shuo
Wu, Jwo-Yuh
Lee, Ta-Sung
Institute of Communications Engineering
Issue Date: 2007
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.
URI: http://hdl.handle.net/11536/10123
ISBN: 978-1-4244-1271-6
ISSN: 0886-1420
Journal: TENCON 2007 - 2007 IEEE REGION 10 CONFERENCE, VOLS 1-3
Begin Page: 96
End Page: 99
Appears in Collections:Conferences Paper