Title :
Robust sum-MSE transceiver optimisation for multi-user non-regenerative MIMO relay downlink systems
Author :
Liu, Jiangchuan ; Qiu, Zhifeng
Author_Institution :
Inst. of Inf. Sci., Beijing Jiaotong Univ., Beijing, China
Abstract :
Presented is transceiver optimisation for multi-user non-regenerative MIMO relay downlink systems. By taking the channel uncertainties into account, a robust scheme is proposed to minimise the sum mean square error (SMSE) of the system under the power constraints, where the transceiver is obtained by using the Karush-Kuhn-Tucker conditions and realised through an iterative algorithm. Simulation results verify the robustness of the proposed scheme against the estimation errors.
Keywords :
MIMO communication; iterative methods; mean square error methods; optimisation; radio repeaters; radio transceivers; Karush-Kuhn-Tucker conditions; channel uncertainty; estimation errors; iterative algorithm; multiuser nonregenerative MIMO relay downlink systems; power constraints; robust sum-MSE transceiver optimisation; sum mean square error;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.3410
