Decision-Feedback Sequence Estimation for Time-Reversal Space-Time Block Coded Transmission
Schober R, Chen H, Gerstacker W (2004)
Publication Language: English
Publication Type: Journal article
Publication year: 2004
Journal
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Book Volume: 53
Pages Range: 1273-1278
Journal Issue: 7
Abstract
In this paper, we present three different decision-feedback sequence estimation (DFSE) schemes for time-reversal space-time block coding (TR-STBC). The first scheme is called unwhitened DFSE (U-DFSE) and performs reduced-state sequence estimation based on the output of the spatio-temporal matched filter (MF) typically employed in TR-STBC. The second approach improves upon U-DFSE by subtracting a bias term caused by anti-causal interference from the U-DFSE metric. In the third scheme, the noise component in the output of the spatio-temporal MF is first whitened using a prediction-error filter that can be efficiently computed using the Levinson-Durbin algorithm, and subsequently whitened DFSE (W-DFSE) is performed. As relevant example, all three DFSE schemes are compared for the GSM/EDGE system and typical channel profiles such as typical urban (TU) and hilly terrain (HT). Our results show that for binary modulation (as used in GSM) U-DFSE and its improved version can approach the performance of W-DFSE for the full range of delay spreads relevant for GSM and EDGE. On the other hand, for high-level modulation (as used in EDGE) only W-DFSE gives a satisfactory performance, if a low trellis complexity is desired.
Authors with CRIS profile
Robert Schober
Lehrstuhl für Digitale Übertragung
Wolfgang Gerstacker
Lehrstuhl für Digitale Übertragung
Involved external institutions
Canada (CA)How to cite
APA:
Schober, R., Chen, H., & Gerstacker, W. (2004). Decision-Feedback Sequence Estimation for Time-Reversal Space-Time Block Coded Transmission. IEEE Transactions on Vehicular Technology, 53(7), 1273-1278. https://doi.org/10.1109/TVT.2004.830963
MLA:
Schober, Robert, Harry Chen, and Wolfgang Gerstacker. "Decision-Feedback Sequence Estimation for Time-Reversal Space-Time Block Coded Transmission." IEEE Transactions on Vehicular Technology 53.7 (2004): 1273-1278.
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