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

Design and Optimization of Linking Matrix for a JSCC System Based on DP-LDPC Codes

“…The proposed scheme for design and optimization of linking matrix is further verified. We have optimized the code pair in [ 17 ] when the probability of non-zero elements is 0.75. Figure 6 shows the BER performance of [ 17 ] and the optimized scheme.…”

“…We have optimized the code pair in [ 17 ] when the probability of non-zero elements is 0.75. Figure 6 shows the BER performance of [ 17 ] and the optimized scheme. When the BER is , there is an approximate 0.22 dB gain between the proposed optimization scheme and that presented in [ 17 ].…”

“…Figure 6 shows the BER performance of [ 17 ] and the optimized scheme. When the BER is , there is an approximate 0.22 dB gain between the proposed optimization scheme and that presented in [ 17 ]. This comparison experiment results verify the effectiveness of the proposed scheme for optimizing .…”

“…The performance of the JSCC system has been enhanced through the utilization of a multi-objective optimization technique that considers the optimization of single-edge in linking matrix [13]. Through an analysis of the linking matrix between VNs in the source code and CNs in the channel code (i.e., B L2 ), it has been confirmed that multi-edges in linking matrix provide a significant improvement to the performance of the JSCC system compared to single-edge in linking matrix [14][15][16][17].…”

“…The performance of the JSCC system has been enhanced through the utilization of a multi-objective optimization technique that considers the optimization of single-edge in linking matrix [ 13 ]. Through an analysis of the linking matrix between VNs in the source code and CNs in the channel code (i.e., ), it has been confirmed that multi-edges in linking matrix provide a significant improvement to the performance of the JSCC system compared to single-edge in linking matrix [ 14 , 15 , 16 , 17 ]. Although it has been demonstrated that the presence of linking matrix with multi-edges can effectively improve the performance of JSCC systems, existing design and optimization schemes have only utilized partially multi-edges in linking matrix and lack an effective optimization scheme.…”