An improved turbo decoding scheme for impulsive channel

Author

Savitha, H.M. ; Kulkarni, Muralidhar

Author_Institution

Dept. of Electron. & Commun. Eng., Nat. Inst. of Technol. Karnataka, Surathkal, India

fYear

2010

fDate

July 29 2010-Aug. 1 2010

Firstpage

135

Lastpage

139

Abstract

This paper proposes a novel turbo decoding scheme for additive white class A noise (AWAN) channel. It compares the performance of turbo coded systems with Quadrature Phase Shift Keying (QPSK) and 16-Quadrature Amplitude Modulation (16-QAM) on AWAN channel with two different channel values-one computed as per additive white Gaussian noise (AWGN) channel conditions and the other as per AWAN channel conditions. The results show that the use of appropriate channel value in turbo decoding helps to combat the impulsive noise more effectively. Also, the Bit error rate (BER) performance of the proposed model for AWAN channel is compared with that of AWGN channel. It is observed that they exhibit comparable BER performance.

Keywords

AWGN channels; error statistics; impulse noise; quadrature amplitude modulation; quadrature phase shift keying; turbo codes; AWAN channel; AWGN channel; BER; QAM; QPSK; additive white Gaussian noise channel; additive white class A noise channel; bit error rate; impulsive channel; impulsive noise; quadrature amplitude modulation; quadrature phase shift keying; turbo decoding; AWGN; AWGN channels; Bit error rate; Decoding; Phase shift keying; Turbo codes; 16-QAM; AWAN channel; Bit error rate; Turbo code;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial and Information Systems (ICIIS), 2010 International Conference on

Conference_Location

Mangalore

Print_ISBN

978-1-4244-6651-1

Type

conf

DOI

10.1109/ICIINFS.2010.5578719

Filename

5578719