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Practical implementation of a multichannel equalizer for a propagation with ISI and CCI-application to a GSM link

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4 Author(s)
Pipon, F. ; UTTC/TSI, Thomson-CSF Commun., Gennevilliers, France ; Chevalier, P. ; Vila, P. ; Pirez, D.

For radiocommunication channels with propagation multipaths, the presence of intersymbol interference (ISI) at reception must be mitigated by an equalizer. Furthermore, when the link is perturbed by cochannel interference (CCI), the use of an adaptive array at reception may be very useful. In such contexts, it has been shown that the maximum likelihood sequence estimation (MLSE) multichannel receiver is composed of a spatio-temporal matched filter (STMF) followed by a symbol rate sampler and the MLSE-based modified Viterbi algorithm for a mono channel receiver. However, this optimal receiver has not been implemented in a practical context. The purpose of this paper is to fill the gap previously mentioned by introducing a new multichannel receiver, which is an implementation of the optimal one in temporally white noise (TWN). The performance of this new receiver is then analyzed in the context of a GSM link with ISI and CCI

Published in:

Vehicular Technology Conference, 1997, IEEE 47th  (Volume:2 )

Date of Conference:

4-7 May 1997