Title :
SOVA-based iterative decoding of turbo coded OOK and turbo coded BPPM
Author :
Yamamoto, Naotake ; Ohtsuki, Tomoaki
Author_Institution :
Dept. of Electr. Eng., Tokyo Univ. of Sci., Chiba, Japan
Abstract :
Infrared wireless communication and optical communication usually adopt on-off keying (OOK) and pulse position modulation (PPM). Previously (see Yamamoto, N. and Ohtsuki, T., Proc. IEEE GLOBECOM´01, vol.3, p.1913-17, 2001), we presented the iterative maximum a posteriori (MAP) probability decoding of turbo coded OOK and turbo coded binary PPM (BPPM). We now present a soft-output Viterbi algorithm (SOVA) based iterative decoding of turbo coded OOK and turbo coded BPPM. We show that the BER of both turbo coded OOK and turbo coded BPPM are almost identical and improve as the number of iterations is increased.
Keywords :
Viterbi decoding; amplitude shift keying; error statistics; iterative decoding; modulation coding; optical communication; pulse position modulation; turbo codes; BER; MAP decoding; SOVA; binary PPM; binary pulse position modulation; infrared wireless communication; iterative decoding; maximum a posteriori decoding; on-off keying; optical communication; soft-output Viterbi algorithm; turbo coded BPPM; turbo coded OOK; AWGN; Bit error rate; Computer simulation; Iterative decoding; Optical fiber communication; Performance analysis; Pulse modulation; Turbo codes; Viterbi algorithm; Wavelength division multiplexing;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on
Print_ISBN :
0-7803-7589-0
DOI :
10.1109/PIMRC.2002.1046724
