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The MISO interference channel from a game-theoretic perspective: A combination of selfishness and altruism achieves Pareto optimality
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
Linköping University Department of Electrical Engineering (ISY) Division of Communication Systems.
2008 (English)In: 2008 IEEE International Conference On Acoustics, Speech And Signal Processing: Vols 1-12, 2008, 5364-5367 p.Conference paper (Refereed)
Abstract [en]

We study the MISO interference channel from a game-theoretic perspective. Recently, it was shown that the rates at the non-cooperative Nash equilibrium (NE) strategy are poor especially in the medium and high SNR regimes. A reasonable outcome of the cooperative approach, close to the Pareto boundary of the achievable rate region, was shown to be the zero-forcing (ZF) strategy. In this work, we prove that any point on the Pareto boundary can be achieved by a certain linear combination of the NE and ZF strategies. A scalar weight per user chooses between "selfish" (NE) and altruistic (ZF) behavior. Thereby, the difficult beamforming optimization is reduced to a simple weight optimization. Different optimal operating points, e.g. maximum weighted sum-rate, the Nash-bargaining solution, or the Egalitarian solution, can be obtained by a computationally efficient iterative algorithm. The results are characterized by instantaneous achievable rate regions and the corresponding operating points.

Place, publisher, year, edition, pages
2008. 5364-5367 p.
, International Conference on Acoustics Speech and Signal Processing (ICASSP), ISSN 1520-6149
Keyword [en]
interference channel, multiple-input single-output (MISO), bearmforming, Pareto optimality, game theory
National Category
Signal Processing
URN: urn:nbn:se:kth:diva-38389DOI: 10.1109/ICASSP.2008.4518872ISI: 000257456703325ScopusID: 2-s2.0-51449094808ISBN: 978-1-4244-1483-3OAI: diva2:437351
33rd IEEE International Conference on Acoustics, Speech and Signal Processing Location: Las Vegas, NV Date: MAR 30-APR 04, 2008
Available from: 2011-08-29 Created: 2011-08-25 Last updated: 2012-05-24Bibliographically approved

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Jorswieck, Eduard A.Larsson, Erik G.
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