Paper Info
Title
Interference Alignment for the MIMO Interference Channel with Delayed Local CSIT
Abstract
We consider the MIMO (multiple-input multiple-output) Gaussian interference channel with i.i.d. fading across antennas and channel uses and with the delayed local channel state information at the transmitters (CSIT). For the two-user case, achievability results for the degrees of freedom (DoF) region of this channel are provided. We also prove the tightness of our achievable DoF region for some antenna configurations. Interestingly, there are some cases in which the DoF region with delayed local CSIT is identical to the DoF region with perfect CSIT and that is strictly larger than the DoF region with no CSIT. We then consider the $K$-user MISO (multiple-input single-output) IC and show that the degrees of freedom of this channel could be greater than one with delayed local CSIT.
Year
Venue
Keywords
2011
Clinical Orthopaedics and Related Research
information theory,degree of freedom
Field
DocType
Volume
Fading,Control theory,MIMO,Communication channel,Mimo interference channel,Gaussian interference channel,Mathematics,Interference alignment,Channel state information
Journal
abs/1102.5
Citations 
PageRank 
References 
31
2.18
5
Authors
3
Name
Order
Citations
PageRank
Akbar Ghasemi118113.37
Abolfazl Seyed Motahari237026.78
Amir Keyvan Khandani336324.94