Signal detection for orthogonal space-time block coding over time-selective fading channels: the H(i) systemsZheng, F.-C. and Burr, A.G. (2006) Signal detection for orthogonal space-time block coding over time-selective fading channels: the H(i) systems. IEEE Transactions on Wireless Communications, 5 (1). pp. 40-46. ISSN 1536-1276 Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1109/TWC.2006.1576524 Abstract/SummaryOne major assumption in all orthogonal space-time block coding (O-STBC) schemes is that the channel remains static over the length of the code word. However, time-selective fading channels do exist, and in such case conventional O-STBC detectors can suffer from a large error floor in the high signal-to-noise ratio (SNR) cases. As a sequel to the authors' previous papers on this subject, this paper aims to eliminate the error floor of the H(i)-coded O-STBC system (i = 3 and 4) by employing the techniques of: 1) zero forcing (ZF) and 2) parallel interference cancellation (PIC). It is. shown that for an H(i)-coded system the PIC is a much better choice than the ZF in terms of both performance and computational complexity. Compared with the, conventional H(i) detector, the PIC detector incurs a moderately higher computational complexity, but this can well be justified by the enormous improvement.
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