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High Rate Quasi-Orthogonal Space-Time Block Code Designs for Four Transmit Antennas

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1 Author(s)
Smith, D.B. ; Nat. ICT Australia, Canberra

This paper addresses the design of high rate quasi-orthogonal space-time block codes, with rates of 1.5 and 13/8, to give improved performance. Three different quasi-orthogonal designs are presented which are variants of previous quasi-orthogonal designs to give higher code rates. The first two variants transform rate 1 designs to rate 1.5 designs, the third variant transforms a rate 9/8 design to a rate 13/8 design. The designs presented are shown to be particularly attractive in terms of greater effective throughput for medium-to-high signal-to-noise ratio with a 4-ary input constellation.

Published in:

Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on

Date of Conference:

3-7 Sept. 2007