Exploiting Additional Transmit Antennas for More Degrees of Freedom in 3-User MIMO Interference Channel with Delayed CSIT
Conference: SCC 2017 - 11th International ITG Conference on Systems, Communications and Coding
02/06/2017 - 02/09/2017 at Hamburg, Germany
Proceedings: SCC 2017
Pages: 6Language: englishTyp: PDF
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Authors:
Buzuverov, Alexey (Graduate School of Computational Engineering, TU Darmstadt, Dolivostr. 15, 64293 Darmstadt, Germany & Communications Engineering Lab, TU Darmstadt, Merckstr. 25, 64283 Darmstadt, Germany)
Al-Shatri, Hussein; Klein, Anja (Communications Engineering Lab, TU Darmstadt, Merckstr. 25, 64283 Darmstadt, Germany)
Abstract:
In this paper, we consider the three-user multiple-input multiple-output interference channel, where the transmitters and the receivers have M and N antennas, respectively, and there is the delayed channel state information at the transmitters (CSIT). For this scenario, we propose a new transmission scheme, which achieves a number of degrees of freedom greater than that known in the literature for the region of antenna configurations of 1 < M/N < 2. The proposed transmission scheme has a three-phase transmission structure, where in phases 1 and 2 a novel approach of using the delayed CSIT is employed.