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Optimal transmission for the MIMO bidirectional broadcast channel in the wideband regime
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-7421-0113
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-0036-9049
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-7926-5081
2011 (English)In: IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC, 2011, 356-360 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents an optimal transmit strategy for multiple antennas bidirectional broadcast channels in the wideband regime. The transmit covariance matrix at the relay has been designed in order to maximize the wideband weighted sum rate. A closed form of the optimal matrix is derived, which shows that a single beam transmit strategy is optimal. The transmit strategies for some special cases, the wideband capacity region, and the minimum energy per bit versus fairness issues are also discussed.

Place, publisher, year, edition, pages
2011. 356-360 p.
Keyword [en]
Broadcast channels, Capacity regions, Closed form, matrix, Minimum energy per bit, Multiple antenna, Optimal transmission, Single beam, Weighted sum-rate, Wide-band, Broadcasting, Communication channels (information theory), Covariance matrix, MIMO systems, Signal processing, Wireless telecommunication systems, Optimization
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-53076DOI: 10.1109/SPAWC.2011.5990429ISI: 000299165600072Scopus ID: 2-s2.0-80052676869ISBN: 9781424493326 (print)OAI: oai:DiVA.org:kth-53076DiVA: diva2:468867
Conference
2011 IEEE 12th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2011. San Francisco, CA. 26 June 2011 - 29 June 2011
Funder
ICT - The Next Generation
Note
QC 20111221Available from: 2011-12-21 Created: 2011-12-21 Last updated: 2012-04-04Bibliographically approved

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Do, Tan TaiOechtering, TobiasSkoglund, Mikael

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