Global Design of Double Protograph LDPC Codes for Joint Source-Channel Coding

被引：6
|
作者：
Hong, Shaohua [1 ,2 ]
Ke, Jianqu [1 ]
Wang, Lin [1 ]
机构：
[1] Xiamen Univ, Dept Informat & Commun Engn, Xiamen 361005, Peoples R China
[2] Minist Nat Resources, Key Lab Southeast Coast Marine Informat Intelligen, Xiamen 361005, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2023年 / 27卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Parity check codes; Decoding; Joining processes; Optimization; Resource management; Complexity theory; Wireless communication; DP-LDPC codes; global design; global perspective; !text type='JS']JS[!/text]CC; linking matrix; PERFORMANCE; OPTIMIZATION; IMPROVEMENT;
D O I：
10.1109/LCOMM.2022.3221769
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this letter, a global design of double protograph low-density parity-check (DP-LDPC) codes is proposed for joint source-channel coding (JSCC) system. The maximum number of degree-2 variable nodes (VNs), which is very important for the performance of the system, is determined from a global perspective that considers the joint protograph as a whole. Based on the allocation of degree-2 VNs, the new guidelines with this more comprehensive perspective are summarized and the global optimized DP-LDPC codes are designed. The simulation results that are in consistent with the joint protograph extrinsic information transfer (P-EXIT) analysis indicate that the optimized DP-LDPC codes have better performance compared with the existing re-designed DP-LDPC codes.
引用
收藏
页码：424 / 427
页数：4
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