Title :
Multiuser two-way relaying method for beamforming systems
Author :
Joung, Jingon ; Sayed, Ali H.
Author_Institution :
Dept. of Electr. Eng., Univ. of California (UCLA), Los Angeles, CA, USA
Abstract :
Relay transceiver processing for multiuser two-way communications is optimized based on zero-forcing (ZF) and minimum mean-square-error (MMSE) formulations under relay power constraints. Cochannel interference (CCI) from multiusers and self-interference (SI) from two-way communications are efficiently mitigated by the proposed relay processing with multiple antennas. The system performance is examined in relation to the system BER by computer simulation. Numerical results indicate that the beamforming method is more attractive than the spatial multiplexing method for the two-way communications.
Keywords :
antenna arrays; array signal processing; cochannel interference; least mean squares methods; multi-access systems; transceivers; beamforming systems; cochannel interference; minimum mean-square-error; multiple antennas; multiuser two-way communications; multiuser two-way relaying method; relay transceiver processing; self-interference; spatial multiplexing method; zero-forcing; Array signal processing; Bit error rate; Constraint optimization; Interchannel interference; Interference constraints; Power system relaying; Radiofrequency interference; Relays; System performance; Transceivers;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2009. SPAWC '09. IEEE 10th Workshop on
Conference_Location :
Perugia
Print_ISBN :
978-1-4244-3695-8
Electronic_ISBN :
978-1-4244-3696-5
DOI :
10.1109/SPAWC.2009.5161791
