Title :
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
fDate :
July 29 2010-Aug. 1 2010
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;
Conference_Titel :
Industrial and Information Systems (ICIIS), 2010 International Conference on
Conference_Location :
Mangalore
Print_ISBN :
978-1-4244-6651-1
DOI :
10.1109/ICIINFS.2010.5578719
