Abstract:
A modified version of proportionate
normalized least mean square (PNLMS) algorithm that
achieves faster convergence in time domain with a
marginal increment in implementation complexity
than the existing one is proposed. The proposed
algorithm, leaky PNLMS (LPNLMS), mainly differs
from PNLMS by virtue of a leaky factor which is
dependent on the algorithm step size parameter and
speeds up the convergence behaviour. We apply the
proposed algorithm in case of an adaptive echo
canceller. The performance of the proposed algorithm
is examined in the said application with respect to the
mean square error (MSE) and bit error rate (BER)
curves.
