Frequency-domain equalization for space-time block-coded systems

Authors:
F. Pancaldi;G. M. Vitetta
Affiliations:
Dept. of Inf. Eng., Univ. of Modena & Reggio Emilia, Italy;-
Venue:
IEEE Transactions on Wireless Communications
Year:
2005

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Cited 1

A low complexity two stage MMSE-based receiver for single-carrier frequency-domain equalization transmissions over frequency-selective channels

GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications

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Abstract

In this paper, conventional and turbo-channel-equalization algorithms processing two samples of the received signal per channel symbol and operating in the frequency domain are proposed for space-time block-coded systems. In the class of conventional equalization techniques, minimum-mean-square-error (MMSE) linear and decision-feedback equalizers (DFE) are derived and a synthesis technique based on the well-known Levinson-Durbin algorithm is proposed for the latter. Similarly, iterative linear and decision-feedback-equalization algorithms for turbo receivers are devised. Performance results show the efficacy of the proposed equalization techniques and their superiority over other frequency-domain-equalization strategies.