NDLI: A space-time block code using orthogonal frequency-shift-keying

Content Provider	IEEE Xplore Digital Library
Author	Ho, P. Songhua Zhang Pooi Yuen Kam
Copyright Year	2005
Description	Author affiliation: Sch. of Eng. Sci., Simon Fraser Univ., Burnaby, BC, Canada (Ho, P.)
Abstract	We investigate in this paper an Alamouti-type space-time block code (STBC) using orthogonal M-ary frequency-shift-keying (MFSK). The signal is coherently detected using the channel estimates derived from the unmodulated (or implicit pilot) component of the orthogonal signal. An exact bit error probability expression for BFSK and tight union bound for MFSK are derived for the proposed coherent ST-FSK receiver. It is observed that the receiver can maintain close to ideal coherent performance even at very fast fading rates. In comparison with differential STBC, the two approaches yield similar error performance in a static fading environment. However, the error performance of differential STBC deteriorates rapidly as the fade rate increases. In terms of implementation complexity and delay, the proposed coherent ST-FSK receiver is similar to differential STBC, as both approaches employ digital filters of similar lengths. The findings in this paper suggest that despite its larger bandwidth requirement, ST-FSK is a very attractive alternative space-time signaling format.
Starting Page	2896
Ending Page	2900
File Size	240363
Page Count	5
File Format	PDF
ISBN	0780389387
DOI	10.1109/ICC.2005.1494908
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-16
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Block codes Frequency shift keying Fading Channel estimation Signal detection Transmitting antennas Decoding Error probability Delay Digital filters
Content Type	Text
Resource Type	Article

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