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- W2361296973 abstract "The encoding algorithm of Low-Density Parity-Check(LDPC) codes is implemented in ADSP-BF561.To solve the problem of high encoding complexity,the transformed check matrix need to be stored in the data space of DSP.Compression scheme is exploited to save memory,and the proposed encoding algorithm related to the compressed check matrix does not increase complexity.The paper simulates and analyses the performance of different code rates of LDPC codes over different channels.The test results in the shallow sea show that LDPC codes can dynamically improve the robustness of underwater communication system.Moreover,LDPC codes with lower code rate can obtain better performance.Approximately error-free communication performance can be achieved when signal-to-noise ratio per symbol before decoding reaches 7～8 dB." @default.
- W2361296973 created "2016-06-24" @default.
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- W2361296973 date "2012-01-01" @default.
- W2361296973 modified "2023-09-26" @default.
- W2361296973 title "Performance analysis of Low-Density Parity-Check codes and verification in underwater communication" @default.
- W2361296973 hasPublicationYear "2012" @default.
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