IEICE Transactions on Communications
Online ISSN : 1745-1345
Print ISSN : 0916-8516
Regular Section
Two Bit Quantization for Turbo Decoder Extrinsic Information with Parameter Reset
Do-Sik YOOJongtae LIM
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2009 Volume E92.B Issue 8 Pages 2727-2730

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Abstract

In this letter, we propose a two-bit representation method for turbo decoder extrinsic information based on bit error count minimization and parameter reset. We show that the performance of the proposed system approaches that of the full precision decoder within 0.17dB and 0.48dB at 1% packet error rate for packet lengths of 500 and 10, 000 information bits. The idea of parameter reset we introduce can be used not only in turbo decoder but also in many other iterative algorithms.

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© 2009 The Institute of Electronics, Information and Communication Engineers
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