Adaptive Downlink Beamforming for Multiuser MISO Systems Combined with User Selection

摘要：

We consider adaptive downlink beamforming strategy for multiuser Multi-Input Single-Output(MISO) systems. It is well known that the non-linear dirty paper coding (DPC) can entirely eliminate the interference of the other users, but it is computationally prohibitive. The Zero-Forcing Beamforming(ZFBF) is an alternative solution also with high complexity due to the inversion of composite channel matrix. In our proposed adaptive downlink beamforming method, we first estimate the singular value and singular matrices of selected channel matrix, which is obtained using Semi-orthogonal User Selection(SUS). Then the optimal downlink beamforming matrix can be derived using such matrices. Simulation results verify the effectiveness of the proposed scheme.

关键词： Multiuser communication MISO systems Downlink beamforming Power iteration

作者: Lei Chen Ju Liu Guowei Zhang Jie Ren

作者单位: School of Information Science and Engineering,Shandong University,Jinan, China 250100 National Mobile Communications Research Laboratory Southeast University Nanjing, China 210096 School of Electronic and Information Engineering,Beijing Jiaotong University,Beijing, China 100044

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 1533-1536

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）