This paper proposes a novel nonuniform division amplitude banded RLS (abrls) algorithm, as an adaptation procedure for time-variant channel equalizers. In the abrlsalgorithm, a coefficient matrix is updated based on ...
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This paper proposes a novel nonuniform division amplitude banded RLS (abrls) algorithm, as an adaptation procedure for time-variant channel equalizers. In the abrlsalgorithm, a coefficient matrix is updated based on the amplitude level of the received sequence. The distribution of the instantaneous amplitude of the time-variant channel output tends to be Gaussian by virtue of the central limit theorem. The proposed method takes advantage of this behavior of the channel output to improve the adaptation scheme of the existing uniform division form of abrlsalgorithm. Computer simulation results obtained by using a second order Markov communication channel model show that the proposed nonuniform abrls algorithm provides a significant BER performance improvement compared to the existing uniform abrls algorithm.
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