Paper Info
Title
Interference alignment with delayed differential feedback for time-correlated MIMO channels
Abstract
Interference alignment (IA) has been well recognized as an efficient approach to reduce interference at high signal to noise ratio (SNR). However, it demands global channel state information (CSI) at both transmitters and receivers for preceder design in order to maximize the multiplexing gain. In this paper, we discuss IA with delayed differential CSI feedback for time-correlated multiple input multiple output (MIMO) block fading channels. We consider the impact of distortion caused by channel estimation errors and quantized CSI feedback delay, and thus, find an optimal feedback interval to minimize this distortion, as well as the sum rate performance. Specifically, we derive the minimum differential feedback rate. And with the feedback-channel capacity constraint, we further study the relationship between the average sum rate and the feedback interval. Analytical results are verified by simulations.
Year
DOI
Venue
2012
10.1109/ICC.2012.6364535
ICC
Keywords
Field
DocType
delayed differential feedback,time-correlated mimo channels,preceder design,radio transmitters,optimal feedback interval,interference alignment,feedback-channel capacity constraint,fading channels,multiplexing gain,signal to noise ratio,time-correlated multiple input multiple output block fading channels,delayed differential csi feedback,minimum differential feedback rate,quantized csi feedback delay,mimo communication,channel capacity,global channel state information,radio receivers,sum rate performance,channel estimation,interference (signal),channel estimation errors,interference,quantization,fading,mimo
Control theory,Fading,Computer science,Signal-to-noise ratio,MIMO,Co-channel interference,Distortion,Channel capacity,Precoding,Channel state information
Conference
Volume
Issue
ISSN
null
null
1550-3607 E-ISBN : 978-1-4577-2051-2
ISBN
Citations 
PageRank 
978-1-4577-2051-2
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Mingxin Zhou1111.99
Leiming Zhang2688.34
Lingyang Song33674238.94
Mérouane Debbah48575477.64
Bingli Jiao51812109.33