Title :
MMSE-based distributed beamforming in cooperative relay networks
Author :
Jinho Choi ; Jeongseok Ha
Author_Institution :
Coll. of Eng., Swansea Univ., Swansea, UK
Abstract :
Distributed beamforming using multiple relay nodes is an effective means to provide power efficient transmission with diversity gain. Various approaches have been proposed to decide relay weights for each relay so that they can cooperatively relay signals. The maximum signal-to-noise ratio (MSNR) has been widely adopted as a performance measure in deciding relay weights. In this paper, we adopt the minimum mean square error (MMSE) to decide relay weights as the MMSE criterion can easily allow distributed implementation.
Keywords :
array signal processing; cooperative communication; diversity reception; mean square error methods; MMSE criterion; MMSE-based distributed beamforming; MSNR; cooperative relay networks; cooperatively relay signals; distributed implementation; diversity gain; maximum signal-to-noise ratio; minimum mean square error; multiple relay nodes; performance measure; power efficient transmission; relay weights; Array signal processing; Distributed beamforming; relay networks;
Conference_Titel :
Circuits and Systems (MWSCAS), 2011 IEEE 54th International Midwest Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-61284-856-3
Electronic_ISBN :
1548-3746
DOI :
10.1109/MWSCAS.2011.6026480
