Abstract:
By introducing a novel outer bound, we find a sufficient condition for optimality of \sum_{k=1}^K M_k/2 degrees of freedom (half the cake per user) for a K-user multi...Show MoreMetadata
Abstract:
By introducing a novel outer bound, we find a sufficient condition for optimality of \sum_{k=1}^K M_k/2 degrees of freedom (half the cake per user) for a K-user multiple-input- multiple-output (MIMO) interference channel (IC) where the cross-channels have arbitrary rank constraints, and the k^{th} transmitter and receiver are equipped with M_k antennas each. The result consolidates and significantly generalizes results from prior studies by Krishnamurthy et al., of rank-deficient interference channels where all users have M antennas; and by Tang et al., of full rank interference channels where the k^{th} user pair has M_k antennas.
Published in: 2015 IEEE Global Communications Conference (GLOBECOM)
Date of Conference: 06-10 December 2015
Date Added to IEEE Xplore: 25 February 2016
ISBN Information: