Reduced decoding time of LDPC code using convolutional code with Vitrebi decoding in Underwater Communication
Krishnamoorthy Narasu Raghavan, R Ramadevi, M Marshiana, Sujatha Kumaran · International Journal of Engineering & Technology · 2018
Low Density Parity Check code is the more efficient technique to attain the minimal error rate in the underwater channel. To reduce the processing delay in the LDPC decoding, convolutional code with high code rate is used. The result showed that the BER of 10-4 can be obtained with Eb/No value of 20 for code rate of ½ and 12 for code rate of 1/8. It is also showed in result that the decoding time is reduced one-third for data size of 500 and one-tenth for the data size of 1500 bits.