TY - JOUR
T1 - Digital pulse interval modulation for optical communications
AU - Ghassemlooy, Zabih
AU - Hayes, Andrew
AU - Seed, N. L.
AU - Kaluarachchi, Eraj
PY - 1998/12
Y1 - 1998/12
N2 - This article presents a study of digital pulse interval modulation (DPIM) for optical wireless communications using intensity modulation with direct detection. The DPIM code properties are discussed, and expressions for the transmission capacity, power spectrum, and error probability are presented. We show that for a given number of bits per symbol, DPIM has a higher transmission capacity, a similar spectral profile, and only a marginally inferior error probability performance compared with pulse position modulation, and is rather less complex to implement. Finally, problems associated with the nonuniform symbol length characteristics of DPIM together with possible solutions are discussed.
AB - This article presents a study of digital pulse interval modulation (DPIM) for optical wireless communications using intensity modulation with direct detection. The DPIM code properties are discussed, and expressions for the transmission capacity, power spectrum, and error probability are presented. We show that for a given number of bits per symbol, DPIM has a higher transmission capacity, a similar spectral profile, and only a marginally inferior error probability performance compared with pulse position modulation, and is rather less complex to implement. Finally, problems associated with the nonuniform symbol length characteristics of DPIM together with possible solutions are discussed.
UR - https://www.scopus.com/pages/publications/0032297925
U2 - 10.1109/35.735885
DO - 10.1109/35.735885
M3 - Article
SN - 0163-6804
VL - 36
SP - 95
EP - 99
JO - IEEE Communications Magazine
JF - IEEE Communications Magazine
IS - 12
ER -