Title :
An automatic procedure to construct the optimal soft-decision quantizers and branch metrics for Viterbi decoders
Author :
Wong, Tan F. ; Skellern, David J. ; Lee, L.H.C.
Author_Institution :
Sch. of Math., Comput., Phys. & Electron., Macquarie Univ., North Ryde, NSW, Australia
Abstract :
An automatic procedure is developed to construct the optimal soft-decision quantizer and branch metric, based on the cutoff rate criterion that determines the optimal soft-decision vector quantization regions, for the Viterbi (1967) decoder over any memoryless channel. As only samples of the received symbols are required, this procedure finds applications in many practical channels
Keywords :
Viterbi decoding; channel capacity; image sampling; memoryless systems; optimisation; vector quantisation; Viterbi decoders; automatic procedure; branch metrics; cutoff rate criterion; memoryless channel; optimal soft-decision quantizers; optimal soft-decision vector quantization; received symbols; samples; AWGN channels; Additive white noise; Decoding; Density functional theory; Euclidean distance; Mathematics; Memoryless systems; Physics; Vector quantization; Viterbi algorithm;
Conference_Titel :
Signals, Systems, and Electronics, 1995. ISSSE '95, Proceedings., 1995 URSI International Symposium on
Conference_Location :
San Francisco
Print_ISBN :
0-7803-2516-8
DOI :
10.1109/ISSSE.1995.498023
