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The encoding and decoding of binary LDPC codes are expanded using characteristics of the Finite Fields concept, a nonbinary LDPC code encoding and decoding method based on the Finite Fields are investigated and the computational complexity of this algorithm is estimated, providing a foundation for the practical applications of this method. Then this algorithm is compared with the binary algorithm...
LDPC code is used in the underwater wireless communication system. Using regular (3,6) LDPC code, with LLR BP decoding algorithm, a simulation is completed in the underwater channel of constant speed of sound. The results show that: the bit error rate of 10-5 can be achieved at the signal to noise ratio of about 2.8 dB, which indicates the high-performance transmission under lower signal to noise...
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