NDLI: On the Minimum Differential Feedback for Time-Correlated MIMO Rayleigh Block-Fading Channels

Content Provider	IEEE Xplore Digital Library
Author	Leiming Zhang Lingyang Song Meng Ma Bingli Jiao
Copyright Year	1972
Abstract	In this paper, we investigate the differential channel state information (CSI) feedback problem for a general multiple input multiple output (MIMO) system over time-correlated Rayleigh block-fading channels. Specifically, we derive the closed-form minimum differential feedback rate in the presence of channel estimation errors and quantization distortion. With the feedback-channel capacity constraint, we further study the ergodic capacity in a periodic feedback system in terms of the minimum differential feedback rate and the feedback interval. Through theoretical analysis, we find that there exists an optimal differential feedback interval to achieve the maximum ergodic capacity. Analytical results are verified by simulations in a practical periodic differential feedback system employing water-filling precoder and Lloyd's quantization algorithm.
Starting Page	411
Ending Page	420
Page Count	10
File Size	517041
File Format	PDF
ISSN	00906778
Volume Number	60
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quantization Channel estimation MIMO Correlation Fading Transmitters Estimation error ergodic capacity differential feedback rate temporal correlation feedback interval
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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