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Interaction between scheduling and user locations in an OSTBC coded downlink system
KTH, School of Electrical Engineering (EES), Signal Processing.
2008 (English)In: 7th International ITG Conference on Source and Channel Coding, SCC 2008, Institute of Electrical and Electronics Engineers (IEEE), 2008Conference paper, Published paper (Refereed)
Abstract [en]

We study the MIMO broadcast channel (BC) with perfect channel state information (CSI) at the mobiles and different types of CSI at the base station, i.e. without CSI, with long-term CSI and with CQI. The antennas at the base station are used to apply an orthogonal space-time block code (OSTBC). At the receiver a linear MMSE detector is employed. We first study the optimal transmit and scheduling strategies for these three cases using the weighted sum minimum mean-square error (WSMSE) as the performance criterion. Afterwards, we analyze the impact of the user locations on the achievable minimum WSMSE. Depending on the scheduling strategy (minimum or maximum fairness), having the users rather more spread out within the cell is either helpful or harmful in order to minimize the WSMSE.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2008.
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-202049Scopus ID: 2-s2.0-85006698853ISBN: 9783800730773 (print)OAI: oai:DiVA.org:kth-202049DiVA, id: diva2:1075888
Conference
7th International ITG Conference on Source and Channel Coding, SCC 2008, Ulm, Germany, 14 January 2008 through 16 January 2008
Note

QC 20170221

Available from: 2017-02-21 Created: 2017-02-21 Last updated: 2017-02-21Bibliographically approved

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  • apa
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  • nn-NB
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  • Other locale
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  • asciidoc
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