Paper Info
Title
A tight outer bound of the degrees of freedom for the MIMO interference channel with the delayed CSIT and partial local feedback
Abstract
We have researched a new model for the general two-user MIMO interference channel. The model is constructed under the assumption that the instantaneous channel state information (CSI) is available to the receive nodes and the delayed CSI at transmitters (defined as CSIT) and partial local feedback are accessible to the transmit nodes. From this model, an outer bound of the degrees of freedom (DoF) region has been deduced for such channel. A special case of (6,1,5,2) interference channel is used to demonstrate the proposed interference cancellation scheme. This case shows that the limit DoF pairs (3,1) and (92,12) lied on the region boundary can be achieved. Based on this scheme, the general demonstration for the achievability of the DoF region is also presented. Our work shows that the derived outer bound is tight and under some cases, the DoF region with delayed CSIT and partial local feedback is comparable to that with instantaneous CSIT or delayed CSIT and global feedback.
Year
DOI
Venue
2015
10.1016/j.jfranklin.2014.10.026
Journal of the Franklin Institute
Field
DocType
Volume
Control theory,Single antenna interference cancellation,Communication channel,Interference (wave propagation),Mimo interference channel,Mathematics,Channel state information,Special case
Journal
352
Issue
ISSN
Citations 
1
0016-0032
0
PageRank 
References 
Authors
0.34
18
4
Name
Order
Citations
PageRank
Yongtao Ma1334.96
linzhong song200.34
Zhao, Y.350.82
Kaihua Liu49011.16