Improved low complexity hybrid turbo codes and their performance analysis

Author

Bhise, Archana ; Vyavahare, Prakash D.

Author_Institution

Dept. of Electron. & Telecommun. Eng., K.J.S. Inst. of Eng. & Inf. Technol., Mumbai, India

Volume

58

Issue

6

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

1620

Lastpage

1622

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 (E_b/N_o)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 E_b/N_o 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.

Keywords

convolutional codes; error statistics; turbo codes; BER; ILCHTC decoders; TCC decoder; bit error rate; energy to noise ratio; error convergence; improved low complexity hybrid turbo codes; performance analysis; turbo convolutional codes; AWGN; Additive white noise; Bit error rate; Block codes; Concatenated codes; Convergence; Convolutional codes; Iterative decoding; Performance analysis; Turbo codes; A posteriori probability, bit error rate, concatenated codes, decoder complexity, hybrid turbo codes.;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2010.06.080507

Filename

5474625