Title :
AF MIMO Beamforming Relay Networks under Various Power Constraints
Author :
Sangku Lee ; Kwon, Hyuck M. ; Kanghee Lee ; Hyuncheol Park
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Wichita State Univ., Wichita, KS, USA
Abstract :
This paper studies amplify-and-forward (AF) multiple-input multiple-output (MIMO) beamforming relay networks based on the minimum mean square error (MMSE) criterion under various transmit power constraints. The primary contribution of this paper is the derivation of a set of optimal relay amplifying matrices and source-destination beamforming vectors under diverse conditions of transmit power constraints on the source and the relay for the AF MIMO wireless relay network. By comparing the bit error rate (BER) performance of each case, an efficient design of a half-duplex AF relay system is presented.
Keywords :
MIMO communication; amplify and forward communication; array signal processing; error statistics; least mean squares methods; matrix algebra; relay networks (telecommunication); vectors; AF MIMO wireless relay network; AF multiple-input multiple-output beamforming relay networks; BER performance; MMSE criterion; amplify-and-forward MIMO beamforming relay networks; bit error rate performance; half-duplex AF relay system; minimum mean square error criterion; optimal relay amplifying matrices; source-destination beamforming vectors; transmit power constraints; Array signal processing; Bit error rate; High definition video; MIMO; Relays; Vectors; Wireless communication; Multiple-input multiple-output (MIMO); beamforming; halfduplex (HD); minimum mean square error (MMSE); relay amplifying matrix;
Conference_Titel :
Military Communications Conference, MILCOM 2013 - 2013 IEEE
Conference_Location :
San Diego, CA
DOI :
10.1109/MILCOM.2013.217
