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Guaranteed performance region in fading orthogonal space-time coded broadcast channels
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-2298-6774
Information Systems Laboratory, Computer Forum, Department of Electrical Engineering, School of Engineering, Stanford University, USA.
Information Systems Laboratory, Computer Forum, Department of Electrical Engineering, School of Engineering, Stanford University, USA.
2008 (English)In: EURASIP Journal on Wireless Communications and Networking, ISSN 1687-1472, E-ISSN 1687-1499Article in journal (Refereed) Published
Abstract [en]

Recently, the capacity region of the MIMO broadcast channel (BC) was completely characterized and duality between MIMO multiple access channel (MAC) and MIMO BC with perfect channel state information (CSI) at transmitter and receiver was established. In this work, we propose a MIMO BC approach in which only information about the channel norm is available at the base and hence no joint beamforming and dirty paper precoding (DPC) can be applied. However, a certain set of individual performances in terms of MSE or zero-outage rates can be guaranteed at any time by applying an orthogonal space-time block code (OSTBC). The guaranteed MSE region without superposition coding is characterized in closed form and the impact of diversity, fading statistics, and number of transmit antennas and receive antennas is analyzed. Finally, six CSI and precoding scenarios with different levels of CSI and precoding are compared numerically in terms of their guaranteed MSE region. Depending on the long-term SNR, superposition coding as well as successive interference cancellation (SIC) with norm feedback performs better than linear precoding with perfect CSI.

Place, publisher, year, edition, pages
2008.
Keyword [en]
optimal resource-allocation, block-codes, capacity, rates, systems, designs
National Category
Telecommunications Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-17617DOI: 10.1155/2008/268979ISI: 000256882600001Scopus ID: 2-s2.0-43949130135OAI: oai:DiVA.org:kth-17617DiVA: diva2:335661
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Ottersten, Björn

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