NDLI: Space-time MMSE reception for multisatellite environment

Content Provider	IEEE Xplore Digital Library
Author	Mucchi, L. Palandri, T. Del Re, E. Fantacci, R.
Copyright Year	2004
Description	Author affiliation: Dept. of Electron. & Telecommun., Florence Univ., Firenze, Italy (Mucchi, L.; Palandri, T.; Del Re, E.; Fantacci, R.)
Abstract	This paper deals with the introduction of two new schemes of space-time MMSE reception implemented for the forward link of a WCDMA multisatellite UMTS environment and the comparison with other two similar space-time MMSE receiver already presented in the literature. In all this works the so called space-time transmit diversity technique (STTD) has been coupled with the minimum mean square error (MMSE) interference suppression technique. The idea has come from the realization that the diversity gain is limited by a medium-high level of multiple access interference (L. Mucchi et al., 2002, R. Tesi et al., 2001). The proposed schemes can be distinguished by the order in which the space-time processing and the MMSE interference suppression are performed. We named ST-MMSE pre STTD combining if the MMSE filtering is performed before the space-time combining and ST-MMSE post STTD combining if the interference suppression and the space-time combining are jointly processed. A realistic multisatellite UMTS environment has been simulated in order to compare the proposed detectors. Bit error rates have been calculated by mean of Monte Carlo simulations assuming a time-varying satellite channel model. Simulations show that the post-combining scheme gives the best results, but it implies more complexity to the mobile terminal. Anyway, both the proposed ST-MMSE schemes yield significantly better performance than the standard STTD receiver or the conventional RAKE receiver.
Starting Page	2745
Ending Page	2749
File Size	351910
Page Count	5
File Format	PDF
ISBN	0780379543
ISSN	10903038
DOI	10.1109/VETECF.2003.1286072
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-10-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference suppression 3G mobile communication Multiaccess communication Diversity reception Mean square error methods Diversity methods Multiple access interference Filtering Detectors Bit error rate
Content Type	Text
Resource Type	Article

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