Research Article
QoS Constrained Robust MIMO Transceiver Design Under Unknown Interference
@INPROCEEDINGS{10.1109/ChinaCom.2012.6417497, author={Xin He and Jianwu Chen and Yik-Chung Wu}, title={QoS Constrained Robust MIMO Transceiver Design Under Unknown Interference}, proceedings={7th International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2012}, month={10}, keywords={qos robust mimo transceiver design arbitrary distributed uncertainty}, doi={10.1109/ChinaCom.2012.6417497} }- Xin He
Jianwu Chen
Yik-Chung Wu
Year: 2012
QoS Constrained Robust MIMO Transceiver Design Under Unknown Interference
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2012.6417497
Abstract
We study the robust transceiver optimization in multiple-input multiple-output (MIMO) systems aiming at minimizing transmit power under probabilistic quality-of-service (QoS) requirements. Owing to the unknown distributed interference, the channel estimation error can be arbitrary distributed. Under this situation, the QoS requirements should account for the worst-case channel estimation error distribution. While directly finding the worst-case distribution is challenging, two methods are proposed to solve the robust transceiver design problem. One is based on the Chebyshev inequality, the other is based on a novel duality method. Simulation results show that the QoS requirement is satisfied by both proposed algorithms. Furthermore, among the two proposed methods, the duality method shows a superior performance in transmit power, while the Chebyshev method demonstrates a lower computational complexity.
