It is shown that the accelerated equalizer convergence reported in the above paper, obtained by using a second-order adaptive algorithm, is misleading. The second-order algorithm presented is approximately equivalent ...
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It is shown that the accelerated equalizer convergence reported in the above paper, obtained by using a second-order adaptive algorithm, is misleading. The second-order algorithm presented is approximately equivalent to the usual first-order algorithm with a larger adaptation constant (step-size).
In this paper, a new hybrid technique employing RS (Reed Solomon) coding and adaptive filter for impulsive noise suppression in OFDM (Orthogonal Frequency Division Multiplexing) systems is presented. adaptive filter c...
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In this paper, a new hybrid technique employing RS (Reed Solomon) coding and adaptive filter for impulsive noise suppression in OFDM (Orthogonal Frequency Division Multiplexing) systems is presented. adaptive filter creates a more accurate estimate of the original OFDM signal after impulsive noise cancellation. The residual impulsive noise is further mitigated by RS decoder in the second stage of proposed technique. Three members of adaptive filters family i.e. NLMS (Normalized Least Mean Square) algorithm, RLS (Recursive Least Square) algorithm and Bhagyashri algorithm are tested with RS decoder in the proposed hybrid technique. Furthermore, the results in terms of steady state MSE (Mean Square Error) reduction, BER (Bit Error Rate) improvement and SNR (Signal to Noise Ratio) enhancement confirm the effectiveness of the proposed dual faceted technique when compared with the recently reported techniques in literature.
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