Title :
An Orthogonal Projection Optimization Algorithm for Multi-User MIMO Channels
Author :
Zhou, Zhendong ; Vucetic, Branka
Author_Institution :
Sch. of Electr. & Inf. Eng., Univ. of Sydney, Sydney, NSW, Australia
Abstract :
We consider a multi-user (MU) multiple-input multiple-output (MIMO) channel where each node is equipped with multiple antennas. An orthogonal projection optimization (OPO) algorithm is proposed based on linear transmit beamforming and receive combining. The performance of the OPO algorithm is analyzed which discloses its convergence characteristics. The complexity of the OPO algorithm is also addressed and a computationally efficient algorithm is developed. The OPO algorithm is applied to both uplink and downlink MU MIMO systems, and simulation results show its excellent performance.
Keywords :
MIMO communication; optimisation; linear transmit beamforming; multi-user MIMO channels; multi-user multiple-input multiple-output channel; orthogonal projection optimization algorithm; AWGN; Array signal processing; Computational complexity; Downlink; Iterative algorithms; MIMO; Receiving antennas; Transceivers; Transmitting antennas; Vectors;
Conference_Titel :
Vehicular Technology Conference (VTC 2010-Spring), 2010 IEEE 71st
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-2518-1
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2010.5493615
