Combined RLS-LMS initialization for per tone equalizers in DMT-receivers
In: IEEE transactions on signal processing, Jg. 51 (2003), Heft 7, S. 1916-1927
Online
academicJournal
- print, 15 ref
Zugriff:
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 will be 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.
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Combined RLS-LMS initialization for per tone equalizers in DMT-receivers
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Autor/in / Beteiligte Person: | YSEBAERT, Geert ; VANBLEU, Koen ; CUYPERS, Gert ; MOONEN, Marc ; POLLET, Thierry |
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Zeitschrift: | IEEE transactions on signal processing, Jg. 51 (2003), Heft 7, S. 1916-1927 |
Veröffentlichung: | New York, NY: Institute of Electrical and Electronics Engineers, 2003 |
Medientyp: | academicJournal |
Umfang: | print, 15 ref |
ISSN: | 1053-587X (print) |
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