Title :
Pulse position modulation for spectrum-sliced transmission
Author_Institution :
Sch. of Eng., Univ. of Warwick, Coventry, UK
fDate :
4/1/2004 12:00:00 AM
Abstract :
An original analysis is presented for spectrum-sliced (SS) transmission employing digital pulse position modulation (PPM) and maximum likelihood detection. The treatment is placed within the context of low-cost access networks, where system parameters allow employment of the Gaussian approximation. SS-PPM is compared to on-off keying (SS-OOK) in the presence of dispersion and found to be typically some 2-4 dB more sensitive. In addition, comparison is made with laser-based OOK where the optimum SS-PPM configuration reduces or eliminates the SS power penalty.
Keywords :
Gaussian distribution; amplitude shift keying; maximum likelihood detection; optical receivers; pulse position modulation; Gaussian approximation; low-cost access networks; maximum likelihood detection; on-off keying; pulse position modulation; spectrum-sliced transmission; Digital modulation; Gaussian approximation; Intersymbol interference; Maximum likelihood detection; Optical filters; Optical noise; Optical pulses; Optical receivers; Pulse modulation; Pulse shaping methods;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.824668
