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Joint Encoding and Decoding Optimization of LT Codes over Noise Channels
2018
EAI Endorsed Transactions on Cognitive Communications
The low-degree variable nodes and high residual errors of Belief Propagation (BP) decoding are key factors of high error floor of LT Codes over noise channels. A joint encoding and decoding scheme are proposed to lower this error floor. The Regularized Variable-Node (RVN) encoding method is adopted to maximize the minimum degree and avoid the lowdegree variable node. By investigating the characteristic of error patterns in error frames and the relationship between error bits and their
doi:10.4108/eai.14-1-2019.161365
fatcat:rkpv7euzardkvp5jlgqzhwpqgu