Title :
Joint source and relay optimization for multiuser MIMO relay communication systems
Author :
Khandaker, Muhammad R A ; Rong, Yue
Author_Institution :
Dept. of Electr. & Comput. Eng., Curtin Univ. of Technol., Bentley, WA, Australia
Abstract :
In this paper, we design the source precoding matrices and the relay amplifying matrix of an amplify-and-forward multiuser multiple-input multiple-output (MIMO) relay communication system. The minimum mean-squared error (MSE) is taken as the design criterion. We propose an alternating technique to efficiently solve the nonconvex source and relay optimization problem. It is shown that both the optimal source and relay matrices have a beamforming structure. Simulation results demonstrate that the proposed source and relay design algorithms perform much better than the existing techniques in terms of both MSE and bit-error-rate.
Keywords :
IP networks; telecommunication network routing; IP fast restoration; IP network; localization algorithm; proactive methods; reactive methods; routing tables; Bit error rate; Covariance matrix; Joints; MIMO; Optimization; Relays; Signal to noise ratio;
Conference_Titel :
Signal Processing and Communication Systems (ICSPCS), 2010 4th International Conference on
Conference_Location :
Gold Coast, QLD
Print_ISBN :
978-1-4244-7908-5
Electronic_ISBN :
978-1-4244-7906-1
DOI :
10.1109/ICSPCS.2010.5709701