Effect of Processing Gain on the Iterative Decoding for a Recursive Single Parity Check Product Code 


Vol. 35,  No. 9, pp. 721-728, Sep.  2010


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  Abstract

CAMC (constant amplitude multi-code) has a better performance of error correction in iterative decoding than SPCPC (single parity check product code). CAMC benefits from a processing gain since it belongs to a spread spectrum signal. We show that the processing gain enhances the performance of CAMC. Additional correction of bit errors is achieved in the de-spreading of iteratively decoded signal. If the number of errors which survived the iterative decoding is less than or equal to (√N/2-1), all of the bit errors are removed after the de-spreading. We also propose a stopping criterion in the iterative decoding, which is based on the histogram of EI (extrinsic information). The initial values of EI are randomly distributed, and then they converge to (-Emax) or (+Emax) over the iterations. The strength of the convergence reflects how successfully error correction process is performed. Experimental results show that the proposed method achieves a gain of 0.2 ㏈ in Eb/No.

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  Cite this article

[IEEE Style]

S. W. Chon and Y. C. Kim, "Effect of Processing Gain on the Iterative Decoding for a Recursive Single Parity Check Product Code," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 9, pp. 721-728, 2010. DOI: .

[ACM Style]

Su Won Chon and Yong Cheol Kim. 2010. Effect of Processing Gain on the Iterative Decoding for a Recursive Single Parity Check Product Code. The Journal of Korean Institute of Communications and Information Sciences, 35, 9, (2010), 721-728. DOI: .

[KICS Style]

Su Won Chon and Yong Cheol Kim, "Effect of Processing Gain on the Iterative Decoding for a Recursive Single Parity Check Product Code," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 9, pp. 721-728, 9. 2010.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880