Publication IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer SciencesVol.E99-ANo.2pp.651-655 Publication Date: 2016/02/01 Online ISSN: 1745-1337 DOI: 10.1587/transfun.E99.A.651 Type of Manuscript: LETTER Category: Digital Signal Processing Keyword: degrees of freedom, full-duplex, interference alignment, multiple-input multiple-output,
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Summary: 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.
