Realization of the Viterbi Algorithm in MLSE with Intersymbol Interference

Ying Lu; Quan Yuan Xu; Zhi Gang Liu

doi:10.4028/www.scientific.net/AMM.214.208

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 214Realization of the Viterbi Algorithm in MLSE with...

Realization of the Viterbi Algorithm in MLSE with Intersymbol Interference

Abstract:

Optimum receiver model for channels with Intersymbol Interference (ISI) and Additive White Gaussian Noise (AWGN) are introduced to deduce the Viterbi algorithm in the Maximum-Likelihood Sequence Estimation (MLSE). Finally, we use Matlab to simulate the algorithm in three different channels and analyze the experiment results. Analyses show that the Viterbi algorithm is applicable for any channel which is optimum from a probability of error viewpoint; the MLSE for channels with ISI has a computational complexity that grows exponentially with the length of channels time dispersion L; the loss of performance is negligible when the decoding delay achieves 5L.

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Periodical:

Applied Mechanics and Materials (Volume 214)

Pages:

208-212

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.214.208

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Online since:

November 2012

Authors:

Ying Lu, Quan Yuan Xu, Zhi Gang Liu

Keywords:

Maximum-Likelihood Sequence Estimation (MLSE), Viterbi Algorithm

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