Performance Improvement in High SNR for LDPC codes using Power Allocation 


Vol. 32,  No. 10, pp. 935-941, Oct.  2007


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  Abstract

In this paper, we suggest the power allocation method which enhances the performance in high SNR for LDPC codes. In this method, bit power is unequally allocated proportionally to the difference of the degree distributions of variable and check nodes of Tanner graph between practically used codes and the codes optimized by density evolution. Simulation is performed to the codes in IEEE 802.16e standards, and the results show that the proposed method works well in high SNR.

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  Cite this article

[IEEE Style]

K. Lee, H. Chung, J. Im, E. Choi, D. Chang, "Performance Improvement in High SNR for LDPC codes using Power Allocation," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 10, pp. 935-941, 2007. DOI: .

[ACM Style]

Kijun Lee, Habong Chung, Juhyuk Im, Eun-A Choi, and Dae-Ig Chang. 2007. Performance Improvement in High SNR for LDPC codes using Power Allocation. The Journal of Korean Institute of Communications and Information Sciences, 32, 10, (2007), 935-941. DOI: .

[KICS Style]

Kijun Lee, Habong Chung, Juhyuk Im, Eun-A Choi, Dae-Ig Chang, "Performance Improvement in High SNR for LDPC codes using Power Allocation," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 10, pp. 935-941, 10. 2007.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880