Efficient block implementation of the decision feedback equalizer
نویسندگان
چکیده
منابع مشابه
Computationally efficient version of the decision feedback equalizer
We propose a computationally e cient version of the Decision Feedback Equalizer (DFE) and compare its performance with the conventional DFE. The proposed equalizer requires fewer taps than the conventional one. This reduces the computational load proportionally and leads to faster adaptation. Identical performance of the two structures in terms of probability of error is also demonstrated using...
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In this paper a computationally e cient Decision Feedback Equalizer (DFE) is proposed. The new equalizer is appropriate for channels with long and sparse impulse response (IR) as those encountered in many wireless communications applications. The main feature of the algorithm is that the actual size of the computationally demanding feedback lter is signi cantly reduced. This is achieved by expl...
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Decision Feedback equalizers (DFEs) usually outperform linear equalizers for channels with intersymbol interference. However, the DFE performance is highly dependent on the availability of reliable past decisions. Hence, in coded systems, where reliable decisions are only available after decoding the full block, the performance of the DFE will be affected. A symbol based DFE is a DFE that only ...
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An outline of the analysisof thestochastic dynamics of the blind adaptation of deckion fcedbadr equalizers (DFEs) operating on noiselm, binary commuuication channels is presented. The general mech.anism whereby the blind adaptation is flawed in the sense that thae Bdst attraction points in parmeter space which lead to unequalLed systems is detined and c l d e d with an exnmple. This bchaviour i...
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In this paper, the idea of multi-split adaptive filtering is applied on DFE. The feed-forward and feedback sections in the DFE are divided into parallel sub-filters by imposing separately the symmetry and antisymmetry conditions on the impulse responses of filters by using appropriate and distinct sets of linear constraints. The purpose of this is to obtain a new structure that gives better per...
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ژورنال
عنوان ژورنال: IEEE Signal Processing Letters
سال: 1998
ISSN: 1070-9908,1558-2361
DOI: 10.1109/97.681426