Aligned Image Sets and the Generalized Degrees of Freedom of Symmetric MIMO Interference Channel with Partial CSIT

Arash Gholami Davoodi; Syed A. Jafar

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arXiv · 1705.00769

Aligned Image Sets and the Generalized Degrees of Freedom of Symmetric MIMO Interference Channel with Partial CSIT

Arash Gholami Davoodi·Syed A. Jafar

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Abstract

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 $\alpha$ and the same channel uncertainty parameter $\beta$. The main challenge resides in the proof of the outer bound which is accomplished by a generalization of the aligned image sets approach.

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Arash Gholami Davoodi, Syed A. Jafar. 2017-05-02. Aligned Image Sets and the Generalized Degrees of Freedom of Symmetric MIMO Interference Channel with Partial CSIT. https://arxiv.org/abs/1705.00769

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