Title: Performance evaluation of non binary concatenated codes
Abstract:A non binary concatenated codes system is proposed and evaluated,in which nonbinary low density parity check(LDPC) codes at high code rate(R=0.9) are linked to Turbo codes at low code rate(R=0.5) in s...A non binary concatenated codes system is proposed and evaluated,in which nonbinary low density parity check(LDPC) codes at high code rate(R=0.9) are linked to Turbo codes at low code rate(R=0.5) in series.Capability of correcting errors was improved by the LDPC codes at high signal noise rate(SNR) and by the Turbo codes at low SNR.The performance of the new system was analyzed on the additive white Gaussian noise(AWGN) channels.The comparison is made between binary concatenated codes system concatenating binary LDPC codes and turbo codes,and Reed-Solomon(RS) concatenated codes system concatenating RS codes and convolutional codes by simulation.The results show that the performance of non binary concatenated system and binary concatenated system is more better than RS concatenated codes system in correcting error,the performance of non binary concatenated system is better than binary concatenated system in correcting error,non binary concatenated system is more complex than RS concatenated codes system,but is more simple than binary concatenated system.Read More
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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