Title :
Viterbi Decoding of Convolutional Codes in Symmetric α -Stable Noise
Author :
Chitre, Mandar A. ; Potter, John R. ; Ong, S.H.
Author_Institution :
Nat. Univ. of Singapore, Singapore
Abstract :
Algorithms developed with a Gaussian noise assumption perform poorly in impulsive noise, such as that described by the symmetric alpha-stable (SalphaS) distribution. We investigate the performance of antipodal signaling and Viterbi decoding of convolutional codes in SalphaS noise. We demonstrate that the p-norm branch metric is robust in SalphaS noise.
Keywords :
Gaussian distribution; Gaussian noise; Viterbi decoding; convolutional codes; impulse noise; Gaussian noise; Viterbi decoding; antipodal signaling; convolutional code; impulsive noise; p-norm branch metric; symmetric alpha-stable noise distribution; AWGN; Additive noise; Additive white noise; Convolutional codes; Decoding; Gaussian noise; Probability distribution; Signal to noise ratio; Upper bound; Viterbi algorithm; Convolutional codes; Viterbi decoding; impulse noise;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2007.910588
