Improved low complexity hybrid turbo codes and their performance analysis

Authors:
Archana Bhise;Prakash D. Vyavahare
Affiliations:
Department of Electronics and Telecommunication Engineering, K. J. S. Institute of Engineering and Information Technology, Mumbai, India;Department of Electronics and Telecommunication Engineering, S. G. S. Institute of Technology and Science, Indore, India
Venue:
IEEE Transactions on Communications
Year:
2010

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Abstract

This paper proposes a new class of Turbo type codes referred to as Improved Low Complexity Hybrid Turbo Codes (ILCHTC). For low Bit Energy to Noise Ratio (EbNo) ILCHTC shows better convergence of errors than that of Low Complexity Hybrid Turbo Code (LCHTC). Simulation results show that ILCHTC achieves Bit Error Rate (BER) of 10-5 at (EbNo) of 1.9 dB, which is 0.4 dB more than that for Turbo Convolutional Codes (TCC). Analysis of ILCHTC and LCHTC decoders show that the number of computations reduce by a factor of two as compared to the computations of TCC decoder.