Design of Robust Turbo Code Interleaver by Differential Evolution and Genetic Algorithms

V. Glory, Ch.Ravi Kumar, Dr.K.Padma Raju

Abstract


These Since their appearance in 1993, first approaching the Shannon limit, turbo codes gave a new direction in the channel encoding field, especially since they have been adopted for multiple telecommunication norms. To obtain good performance, it is necessary to design a robust turbo code interleaver and the code rate. Compared to 1/3 Code rate 2/3 coder has less redundancy. So in this project we are using the code rate of 2/3. This paper proposes a  differential evolution approach to find above average turbo code interleavers. Performance is compared with the conventional genetic algorithm approach and the empirical results illustrate that DE performs well.


Keywords


BER, convolutional code capacity, evolutionary algprithms(EA), free distance, non trivial optimization problems, optimal code, random keys encoding, rate.

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