Research Article
Efficient downlink cooperative multi-cell transmission for MU-MIMO system
@INPROCEEDINGS{10.4108/chinacom.2010.70, author={Zhijia Liu and Zesong Fei and Jingming Kuang}, title={Efficient downlink cooperative multi-cell transmission for MU-MIMO system}, proceedings={5th International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2011}, month={1}, keywords={Cooperative multi-cell MU-MIMO scheduling maximal-ratio-combining (MRC)}, doi={10.4108/chinacom.2010.70} }- Zhijia Liu
Zesong Fei
Jingming Kuang
Year: 2011
Efficient downlink cooperative multi-cell transmission for MU-MIMO system
CHINACOM
ICST
DOI: 10.4108/chinacom.2010.70
Abstract
Cooperative communication technology has been widely studied in recent years due to providing higher resource utilization and more reliable communication. In this work, we consider a downlink multi-user multi-input-multi-output (MU-MIMO) system with cooperative multi-cell transmission. Assuming that the channel state information are available at cell and user, we propose a simple user scheduling algorithm which can achieve the multi-user diversity gain and a power allocation scheme that subject to the total transmission power constrains so that it can more efficiently utilize the system resource and suppress the co-channel interference for the target user equipment. Theoretical analysis and Monte Carlo simulation results show that the transmission sum-rate of the proposed scheme is higher than the traditional single-cell or multi-cell transmission for single user. Additionally, performance of the edge user will also be improved when using the proposed scheme.