Title
A Differential Feedback Scheme Exploiting the Temporal and Spectral Correlation.
Abstract
Channel state information (CSI) provided by a limited feedback channel can be utilized to increase system throughput. However, in multiple-input-multiple- output (MIMO) systems, the signaling overhead realizing this CSI feedback can be quite large, whereas the capacity of the uplink feedback channel is typically limited. Hence, it is crucial to reduce the amount of feedback bits. Prior work on limited feedback compression commonly adopted the block-fading channel model, where only temporal or spectral correlation in a wireless channel is considered. In this paper, we propose a differential feedback scheme with full use of the temporal and spectral correlations to reduce the feedback load. Then, the minimal differential feedback rate over a MIMO time-frequency (or doubly)-selective fading channel is investigated. Finally, the analysis is verified by simulation results. © 2013 IEEE.
Year
DOI
Venue
2013
10.1109/TVT.2013.2266379
IEEE Transactions on Vehicular Technology
Keywords
Field
DocType
Correlation,Quantization (signal),Fading,Transmitters,Wireless communication,Relays,MIMO
Multi-user MIMO,Fading,Control theory,MIMO,Communication channel,Electronic engineering,Throughput,Mathematics,Precoding,Telecommunications link,Channel state information
Journal
Volume
Issue
ISSN
abs/1306.3622
9
0018-9545
Citations 
PageRank 
References 
5
0.42
9
Authors
4
Name
Order
Citations
PageRank
Mingxin Zhou1111.99
Leiming Zhang2688.34
Lingyang Song33674238.94
Mérouane Debbah48575477.64