Image Transmission System Based on QC-LDPC Codes with Simple Recursive Encoding Form
Hua Xu · International Conference on Electronics, Communications and Control · 2012
Low encoding delay and complexity is very important for image transmission. This paper proposes a novel image transmission system with low encoding complexity. Proposed system is based on QC-LDPC codes with a Simple Recursive Encoding Form (SREF QC-LDPC code) which results in low encoding complexity and low encoding delay. Moreover we extend the Protograph Extrinsic Information Transfer (PEXIT) method to evaluate the performance of SREF QC-LDPC codes which leads to construct its parity check matrix. Finally, the base matrix and exponent matrix of SREF QC-LDPC codes uesed in the simulation are given besides the reconstructed image. Simulation results show that the proposed scheme based on SREF QC-LDPC code can provide a good tradeoff between the performance and encoding complexity.