NDLI: Multistage receiver for differential space-time block codes

Content Provider	IEEE Xplore Digital Library
Author	Tarasak, P. Minn, H. Bhargava, V.K.
Copyright Year	2003
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada (Tarasak, P.)
Abstract	Tarokh's differential space-time block codes (DSTBC) can provide a full spatial diversity and be decoded without channel state information. The bit error rate performance of a conventional differential detection has 3-dB degradation compared to a coherent detection in a quasi-static fading channel. Differential detection experiences more degradation in a fast fading channel and error floor appears at high SNR. In [E. Chiavaccini and G.M. Vitetta, May 2002], an approximate maximum likelihood receiver was derived and it reduced the error floor significantly. In this paper, we modify the receiver in [E. Chiavaccini and G.M. Vitetta, May 2002] and apply the concept of multistage decision-directed estimator with intrablock-interference cancellation to obtain further improvement. The proposed receiver works efficiently at moderate to high SNR and at the fading rate between f/sub d/T = 0.02 and f/sub d/T = 0.07.
Starting Page	3155
Ending Page	3159
File Size	284472
Page Count	5
File Format	PDF
ISBN	0780378024
DOI	10.1109/ICC.2003.1204007
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-05-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Block codes Degradation Detectors Fading Maximum likelihood decoding Channel state information Maximum likelihood detection Maximum likelihood estimation Channel estimation Statistics
Content Type	Text
Resource Type	Article

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