Title :
Uplink and downlink beamforming in two-way relay networks
Author :
Rajabi, Omid ; Kalantari, Ashkan ; Soleimani-Nasab, Ehsan ; Ardebilipour, Mehrdad
Author_Institution :
K.N. Toosi Univ. of Technol., Tehran, Iran
Abstract :
In this paper, we consider a two way relay network containing two single antenna transceivers and a MIMO relay. We consider a two stage design process, first by obtaining soft estimate of the transmitted signal through receiver beamformer and then designing transmitter beamformers. We minimize the relay transmit power (dissipated in the relay) subject to two constrains on the transceivers received signal to noise ratios(SNRs).
Keywords :
MIMO communication; antenna arrays; array signal processing; radio transceivers; MIMO relay; beamforming; receiver beamformer; relay transmit power; signal to noise ratio; single antenna transceiver; transmitted signal; transmitter beamformer; two stage design process; two way relay network; Array signal processing; MIMO; Optimization; Relays; Signal to noise ratio; Transceivers; Vectors; Two-way relaying; beamforming; optimal power allocation; semidefinite programming;
Conference_Titel :
Telecommunications Forum (TELFOR), 2011 19th
Conference_Location :
Belgrade
Print_ISBN :
978-1-4577-1499-3
DOI :
10.1109/TELFOR.2011.6143566
