Symbol-Wise Chase Decoding of q-ary Block Codes over BI-AWGN Channels

This letter investigates Chase decoding of q-ary block codes over binary input additive white Gaussian noise channels. Performances of bitwise and symbol-wise test pattern generation are compared. A simple algorithm for evaluating symbol reliability is proposed. Simulation results for Reed-Solomon c...

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Veröffentlicht in:	IEEE communications letters 2011-02, Vol.15 (2), p.229-231
Hauptverfasser:	Cunha, Daniel C, Portugheis, Jaime, do Nascimento, Vagner V
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Block codes Chase decoding Coding, codes Complexity theory Decoding Exact sciences and technology Information, signal and communications theory Reed-Solomon codes Reliability Signal and communications theory Signal to noise ratio soft-decision decoding Telecommunications and information theory test pattern generation Test pattern generators
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Beschreibung
Zusammenfassung:	This letter investigates Chase decoding of q-ary block codes over binary input additive white Gaussian noise channels. Performances of bitwise and symbol-wise test pattern generation are compared. A simple algorithm for evaluating symbol reliability is proposed. Simulation results for Reed-Solomon codes show that the proposed symbol-wise algorithm has a better performance than a bitwise approach with no increase in overall decoding complexity.
ISSN:	1089-7798 1558-2558
DOI:	10.1109/LCOMM.2011.122010.100864