Performance Optimization of Open-Loop MIMO Systems With Orthogonal Space?Time Block Codes
2007 (English)In: IEEE Signal Processing Letters, ISSN 1070-9908, Vol. 14, no 1, 13-16 p.Article in journal (Refereed) Published
In order to obtain full spatial divversity available in a multiple-input multiple-output (MIMO) system, orthogonal space?time block codes (OSTBC) are employed due to their low decoding complexity. However, the drawback of OSTBC is that the code rate decreases with increasing number of transmit antennas. Using a recent result on the properties of Gaussian quadratic forms, we show that an OSTBC for an odd number of transmit antennas is always outperformed in terms of different performance measures, namely, the outage probability, the outage mean-squared error (MSE), and the raw bit-error rate (BER), by an OSTBC for an even number of transmit antennas, which has a strong impact on the design and application of OSTBC.
Place, publisher, year, edition, pages
IEEE Signal Processing Society, 2007. Vol. 14, no 1, 13-16 p.
Bit-error rate (BER), mean-squared error (MSE), number of transmit antennas, orthogonal space?time block codes (OSTBC), outage
IdentifiersURN: urn:nbn:se:kth:diva-95770DOI: 10.1109/LSP.2006.881529ISI: 000243286400004ScopusID: 2-s2.0-33947251244OAI: oai:DiVA.org:kth-95770DiVA: diva2:529274
QC 201206152012-05-292012-05-292012-06-15Bibliographically approved