Signal detection for orthogonal space-time block coding over time-selective fading channels: The H-i systems

F C Zheng; A G Burr

doi:10.1109/TWC.2005.858003

Signal detection for orthogonal space-time block coding over time-selective fading channels: The H-i systems

F C Zheng, A G Burr

Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

One 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.

Original language	English
Pages (from-to)	40-46
Number of pages	7
Journal	IEEE Transactions on Wireless Communications
Volume	5
Issue number	1
DOIs	https://doi.org/10.1109/TWC.2005.858003
Publication status	Published - Jan 2006

Keywords

orthogonal space-time block coding (O-STBC)
parallel interface cancellation (PIC)
time-selective fading channels
wireless communications
zero forcing (ZF) detector
WIRELESS COMMUNICATIONS
CODE

Access to Document

10.1109/TWC.2005.858003

Cite this

@article{81730d1cee1a433c93b94f2a81a7b42c,

title = "Signal detection for orthogonal space-time block coding over time-selective fading channels: The H-i systems",

abstract = "One 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.",

keywords = "orthogonal space-time block coding (O-STBC), parallel interface cancellation (PIC), time-selective fading channels, wireless communications, zero forcing (ZF) detector, WIRELESS COMMUNICATIONS, CODE",

author = "Zheng, {F C} and Burr, {A G}",

year = "2006",

month = jan,

doi = "10.1109/TWC.2005.858003",

language = "English",

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pages = "40--46",

journal = "IEEE Transactions on Wireless Communications",

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T1 - Signal detection for orthogonal space-time block coding over time-selective fading channels: The H-i systems

AU - Zheng, F C

AU - Burr, A G

PY - 2006/1

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N2 - One 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.

AB - One 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.

KW - orthogonal space-time block coding (O-STBC)

KW - parallel interface cancellation (PIC)

KW - time-selective fading channels

KW - wireless communications

KW - zero forcing (ZF) detector

KW - WIRELESS COMMUNICATIONS

KW - CODE

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