Structure Design of SC-LDPC Code over Additive White Gaussian Noise Channel

doi:10.13190/j.jbupt.2019-087

Journal of Beijing University of Posts and Telecommunications ›› 2020, Vol. 43 ›› Issue (1): 35-39.doi: 10.13190/j.jbupt.2019-087

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Structure Design of SC-LDPC Code over Additive White Gaussian Noise Channel

ZHANG Ya-kun¹, ZHANG Ya-mei¹, ZHOU Lin^1,2, HE Yu-cheng^1,2

1. Xiamen Key Laboratory of Mobile Multimedia Communications, National Huaqiao University, Xiamen 361021, China;
2. State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an 710071, China

Received:2019-05-24 Online:2020-02-28 Published:2020-03-27
Supported by:

Abstract

Abstract: In order to optimize the performance of spatially coupled low density parity check (SC-LDPC) codes over the additive white gaussian noise channel, a novel spatial coupling structure was proposed by changing the edge spreading rules, the edges of the variable nodes were connected to the check nodes of the previous position. Basis matrix, rate, degree distribution and computational complexity were analyzed and the results show that the rate of the novel structure is promoted with the degree distribution of check nodes become larger. Finally, the performance of the proposed novel structure is verified by BP decoding.

Key words: protograph, spatially coupled low density parity check code, additive white gaussian noise channel

CLC Number:

TN911.22

ZHANG Ya-kun, ZHANG Ya-mei, ZHOU Lin, HE Yu-cheng. Structure Design of SC-LDPC Code over Additive White Gaussian Noise Channel[J]. Journal of Beijing University of Posts and Telecommunications, 2020, 43(1): 35-39.

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Structure Design of SC-LDPC Code over Additive White Gaussian Noise Channel

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