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Get Free AccessIn this letter, an integrated design of joint source-channel coding scheme based on the double protograph low-density parity-check (DP-LDPC) codes is proposed. As degree-2 variable nodes (VNs) structure plays an important role in the performance of both water-fall and error-floor regions, the maximum number of degree-2 VNs for DP-LDPC codes is determined from a global perspective. By comparing different allocation schemes for degree-2 VNs, new design principles are proposed. Several DP-LDPC codes with different numbers of degree-2 VNs are proposed. The simulated results reveal the superiority of the optimized DP-LDPC codes, which are in line with the decoding threshold analysis by a joint protograph extrinsic information transfer algorithm.
Qiwang Chen, Lin Wang, Shaohua Hong, Yifan Chen (2018). Integrated Design of JSCC Scheme Based on Double Protograph LDPC Codes System. IEEE Communications Letters, 23(2), pp. 218-221, DOI: 10.1109/lcomm.2018.2890243.
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Type
Article
Year
2018
Authors
4
Datasets
0
Total Files
0
Language
English
Journal
IEEE Communications Letters
DOI
10.1109/lcomm.2018.2890243
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