A robust transmit CSI framework with applications in MIMO wireless precoding
作者： Mai Vu , A. Paulraj
DOI: 10.1109/ACSSC.2005.1599825
关键词: Precoding 、 Electronic engineering 、 Covariance 、 Spatial correlation 、 Computer science 、 Wireless 、 Communication channel 、 MIMO 、 Channel code 、 Robustness (computer science)
摘要: Transmit channel side information (CSIT) can improve performance of MIMO wireless systems by means precoding. More complete and reliable CSIT provides more precoding gain. Instantaneous measurements provide the most potential gain, but suffer from delay-induced error due to temporal variation. Statistical knowledge less is reliable. In this paper, we propose a framework combining possibly outdated measurement with statistics - mean covariance create dynamic form, as function correlation factor between current channel. The consists an estimate associated estimation covariance, which effectively covariance. We apply precoder design exploiting these illustrate achievable gain robustness new
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