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Feasibility of Interference Alignment for MIMO Two-Way Interference Channel
Kiyeon KIM Janghoon YANG Dong Ku KIM
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/02/01
Online ISSN: 1745-1337
Type of Manuscript: LETTER
Category: Digital Signal Processing
degrees of freedom, full-duplex, interference alignment, multiple-input multiple-output,
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The feasibility condition of interference alignment (IA) for multiple-input multiple-output two-way interference channel is studied in this paper. A necessary condition and a sufficient condition on the IA feasibility are established and the sum degrees of freedom (DoF) for a broad class of network topologies is characterized. The numerical results demonstrate that two-way operation with appropriate IA is able to achieve larger sum DoF than the conventional one-way operation.