Title :
Efficient Viterbi algorithm for signals with ISI
Author :
Vasudevan, K. ; Giridhar, K. ; Ramamurthi, B.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Madras, India
fDate :
4/2/1998 12:00:00 AM
Abstract :
The authors propose an efficient method of implementing the Viterbi algorithm at Nyquist-rate, for linearly modulated signals corrupted by ISI and AWGN. When signalling is M-ary and ISI extends over L-1 symbols, this scheme results in M+CL (complex multiplications, C is the number of samples per symbol), whereas the whitened-matched-filter based Viterbi algorithm requires ML complex multiplications
Keywords :
Gaussian noise; Viterbi detection; intersymbol interference; telecommunication signalling; white noise; AWGN; ISI; M-ary signalling; Nyquist-rate; Viterbi algorithm; linearly modulated signals;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980472
