2017/05/02 by Arash Gholami Davoodi, Davoodi, Arash Gholami, Syed A. Jafar +1
Computer Science · Mathematics · #FOS: Computer and information sciences #Information Theory (cs.IT) #cs.IT #math.IT
paper · pdf · doi:10.48550/arxiv.1705.00769
21 pages, 3 figures
arxiv created 2017/05/02 · arxiv updated 2017/05/03
The generalized degrees of freedom (GDoF) of the two user symmetric multiple input multiple output (MIMO) interference channel (IC) are characterized as a function of the channel strength levels and the level of channel state information at the transmitters (CSIT). In this symmetric setting, each transmitter is equipped with M antennas, each receiver is equipped with N antennas, and both cross links have the same strength parameter α and the same channel uncertainty parameter β. The main challenge resides in the proof of the outer bound which is accomplished by a generalization of the aligned image sets approach.