Combined RLS-LMS initialization for per tone equalizers in DMT-receivers

Authors:
G. Ysebaert;K. Vanbleu;G. Cuypers;M. Moonen;T. Pollet
Affiliations:
Katholieke Univ. Leuven, Belgium;-;-;-;-
Venue:
IEEE Transactions on Signal Processing
Year:
2003

Citing 0
Cited 4

Clipped input RLS applied to vehicle tracking

EURASIP Journal on Applied Signal Processing
Split SR-RLS for the joint initialization of the per-tone equalizers and per-tone echo cancelers in DMT-based receivers

EURASIP Journal on Applied Signal Processing
Linear IIR precoding for non-redundant transmission over minimum-phase channels in wireline multitone systems

IEEE Transactions on Communications
Bit rate maximising per-tone equalisation with adaptive implementation for DMT-based systems

EURASIP Journal on Advances in Signal Processing

Quantified Score

Hi-index	35.68

Visualization

Abstract

In discrete multitone receivers, the classical equalizer structure consists of a (real) time domain equalizer (TEQ) combined with complex one-tap frequency domain equalizers. An alternative receiver is based on a per tone equalization (PTEQ), which optimizes the signal-to-noise ratio (SNR) on each tone separately and, hence, the total bitrate. In this paper, a new initialization scheme for the PTEQ is introduced, based on a combination of least mean squares (LMS) and recursive least squares (RLS) adaptive filtering. It is shown that the proposed method has only slightly slower convergence than full square-root RLS (SR-RLS) while complexity as well as memory cost are reduced considerably. Hence, in terms of complexity and convergence speed, the proposed algorithm is in between LMS and RLS.