A new MSE approach for combined linear-Viterbi equalizers
Aldosari, S.A.; Alshebeili, S.A.; Al-Sanie, A.M.
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Volume 3, Issue , 2000 Page(s):1707 - 1711 vol.3
Digital Object Identifier 10.1109/VETECS.2000.851563
Summary:Combined linear-Viterbi equalization (CLVE) is a technique that
employs a linear pre-filter in conjunction with the Viterbi algorithm
(VA) to mitigate the effects of intersymbol interference. The aim of the
linear pre-filter is to shape the original channel impulse response to
some shorter desired impulse response (DIR) in order to reduce the
complexity of the VA. In this paper, we present a new MSE based approach
for optimizing CLVEs. This approach takes advantage of the modifications
to the VA which are suitable for channels having coarsely located
coefficients. Specifically, the new approach has the flexibility in
choosing the positions and optimizing the values of nonzero coefficients
of DIR. As a result, it includes the conventional MSE-based approaches
as a special case. Simulation results have been presented to illustrate
the performance of proposed method
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