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http://dx.doi.org/10.5762/KAIS.2012.13.5.2347

An Alternating Equalizer with Differential Adjustment Based on Symbol Decisions by Soft/Hard Decision  

Oh, Kil-Nam (Dept. of Optical Communications Engineering, Gwangju University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.13, no.5, 2012 , pp. 2347-2352 More about this Journal
Abstract
In this paper, a new alternating equalizer and its differential adjustment algorithm are proposed. The proposed alternating equalizer achieves equalization effectively using an algorithm performing symbol decisions based on soft/hard decision. In addition, it is possible to improve the initial blind convergence speed and steady-state error performance simultaneously by adjusting the equalizer differentially according to the relative reliability of the symbol decisions by soft/hard decision devices. The simulation results on 16/64-QAM constellations under multipath propagation channel and additive noise conditions confirmed to support usefulness of the proposed method.
Keywords
Alternating equalizer; Soft/hard decision; Differential adjustment; LMS;
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