GSVD Beamforming for Two-User MIMO Downlink Channel
GSVD Beamforming for Two-User MIMO Downlink Channel
复制标题
DOI：
10.1109/tvt.2013.2241091
复制
发表时间：
2013-01
影响因子：
6.8
通讯作者：
Damith Senaratne;C. Tellambura
中科院分区：
文献类型：
--
作者：
Damith Senaratne;C. Tellambura
本文介绍了广义奇异值分解 (GSVD) 波束成形的基本原理：一种基于 GSVD 的非迭代波束成形技术，适用于两用户多输入多输出 (MIMO) 下行链路。研究了 GSVD 波束成形和发射功率归一化产生的专用/公共信道的数量；对于仅涉及公共信道的配置，瑞利衰落下的信道增益具有精确的特征。此外，还提供了基本多播和双向中继应用的符号错误率（SER）；由此突出了专用/公共信道的性能差异以及信道估计误差和信道衰落中的不对称性的影响。
This paper introduces the fundamentals of generalized singular value decomposition (GSVD) beamforming: a noniterative beamforming technique based on GSVD for the two-user multiple-input-multiple-output (MIMO) downlink. The numbers of private/common channels produced by GSVD beamforming and transmit power normalization are investigated; the channel gains under Rayleigh fading are characterized exactly for configurations that involve only common channels. Moreover, symbol error rates (SERs) are presented for elementary multicasting and two-way relaying applications; the performance distinctions of the private/common channels and the effect of channel-estimation errors and asymmetries in channel fading are highlighted thereby.