Rotated and scaled alamouti coding

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Repetition-based retransmission is used in Alamouti-modulation [1998] for 2 times 2 MIMO systems. We propose to use instead of ordinary repetition so-called dasiascaled repetitionpsila together with rotation. It is shown that the rotated and scaled Alamouti code has a hard-decision performance which is only slightly worse than that of the Golden code [2005], the best known 2 times 2 space-time code. Decoding the Golden code requires an exhaustive search over all the codewords (or sphere decoding for higher spectral efficiencies), while our rotated and scaled Alamouti code can be decoded with an acceptable complexity.
Original languageEnglish
Title of host publicationProceedings of the 2008 IEEE International Symposium on Information Theory (ISIT 2008) 6 - 11 July 2008, Toronto, Ontario, Canada
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Publication statusPublished - 2008
Eventconference; IEEE ISIT 2008, Toronto, Ontario, Canada; 2008-07-06; 2008-07-11 -
Duration: 6 Jul 200811 Jul 2008


Conferenceconference; IEEE ISIT 2008, Toronto, Ontario, Canada; 2008-07-06; 2008-07-11
OtherIEEE ISIT 2008, Toronto, Ontario, Canada

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