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On the outage probability of quasi-orthogonal space-time codes
Faculty of EECS, Technical University of Berlin, Berlin, Germany.ORCID iD: 0000-0002-0036-9049
2004 (English)In: 2004 IEEE INFORMATION THEORY WORKSHOP, PROCEEDINGS, 2004, 381-386 p.Conference paper, Published paper (Refereed)
Abstract [en]

Recently, a quasi-orthogonal space-time block code (QSTBC) capable of achieving a significant fraction of the outage mutual information of a multiple-input-multiple output (MIMO) wireless communication system for the case of four transmit and one receive antennas was proposed. We generalize these results to 2(n) transmit and an arbitrary number of receive antennas. Furthermore, we derive an analytical lower bound for the fraction of outage probability achieved with QSTBC and show that this bound is tight for low signal-to-noise-ratios (SNR) values and also for increasing number of receive antennas. We present also an upper bound, which is tight for high SNR values and derive analytical expressions for the case of four transmit antennas. Furthermore, by utilizing the special structure of the QSTBC we propose a new transmit strategy, which decouples the signals transmitted from different antennas in order to detect the symbols separately with a linear ML-detector rather than joint detection, an up to now only known advantage of orthogonal space-time codes (OSTBC).

Place, publisher, year, edition, pages
2004. 381-386 p.
Keyword [en]
BLOCK-CODES, CAPACITY, CHANNELS, ANTENNAS
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-52418ISI: 000226087200070OAI: oai:DiVA.org:kth-52418DiVA: diva2:466408
Conference
IEEE Information Theory Workshop. San Antonio, TX. OCT 24-29, 2004
Note
QC 20111219Available from: 2011-12-15 Created: 2011-12-15 Last updated: 2011-12-19Bibliographically approved

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Oechtering, Tobias J.

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