Title :
On the Capacity Region and the Generalized Degrees of Freedom Region for the MIMO Interference Channel With Feedback
Author :
Ashraphijuo, Morteza ; Aggarwal, Vaneet ; Xiaodong Wang
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
Abstract :
In this paper, we study the effect of feedback on the two-user MIMO interference channel. The capacity region of the MIMO interference channel with feedback is characterized within a constant number of bits, where this constant is independent of the channel matrices. Further, it is shown that the capacity region of the MIMO interference channel with feedback and its reciprocal interference channel are within a constant number of bits. Finally, the generalized degrees of freedom region for the MIMO interference channel with feedback is characterized.
Keywords :
MIMO communication; channel capacity; feedback; radiofrequency interference; MIMO interference channel; capacity region; channel matrices; generalized degrees of freedom region; reciprocal interference channel; Covariance matrices; Integrated circuits; Interference channels; MIMO; Receivers; Signal to noise ratio; Transmitters; Capacity region; Han–Kobayashi message splitting; MIMO interference channel; feedback; generalized degrees of freedom; reciprocal interference channel;
Journal_Title :
Information Theory, IEEE Transactions on
DOI :
10.1109/TIT.2013.2282317
