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Alternating Rate Profile Optimization in Single Stream MIMO Interference Channels
2014 (English)In: IEEE Signal Processing Letters, ISSN 1070-9908, E-ISSN 1558-2361, Vol. 21, no 2, p. 221-224Article in journal, Letter (Refereed) Published
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Abstract [en]

The multiple-input multiple-output interference channel is considered with perfect channel information at the transmitters and single-user decoding receivers. With all transmissions restricted to single stream beamforming, we consider the problem of finding all Pareto optimal rate-tuples in the achievable rate region. The problem is cast as a rate profile optimization problem. Due to its nonconvexity, we resort to an alternating approach: For fixed receivers, optimal transmission is known. For fixed transmitters, we show that optimal receive beamforming is a solution to an inverse field of values problem. We prove the solution's stationarity and compare it with existing approaches.

Place, publisher, year, edition, pages
IEEE Press, 2014. Vol. 21, no 2, p. 221-224
Keywords [en]
Alternating optimization; MIMO interference channel; Pareto optimality; single stream beamforming
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-182703DOI: 10.1109/LSP.2013.2297351ISI: 000330294100004Scopus ID: 2-s2.0-84893398714OAI: oai:DiVA.org:kth-182703DiVA, id: diva2:1052188
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QC 20161214

Available from: 2016-12-05 Created: 2016-02-22 Last updated: 2024-03-15Bibliographically approved

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Mochaourab, Rami

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