Title :
Joint Pulse Spreading Estimation and Decoding in Stretched Pulse PPM Optical Channels
Author :
Prati, Giancarlo
Author_Institution :
Centro di Studio per i Metodi e i Dispositivi di Radiotrasmissione, CNR, Pisa, Italy
fDate :
8/1/1985 12:00:00 AM
Abstract :
In this paper, maximum a posteriori probability (MAP) decoding for a stretched-pulse, PPM, direct-detection optical communication system is examined when the spreading factor of the received laser pulse is unknown. Based on the discrete count model; joint pulse spreading estimators and decoders are derived for both Poisson and avalanche photodetection (APD) cases. Performance is evaluated in terms of probability of error for pulse decoding.
Keywords :
Coding/decoding; Estimation; Optical communications; Pulse-position modulation; Clouds; Decoding; Laser modes; Optical pulses; Optical receivers; Optical scattering; Optical transmitters; Pulse modulation; Pulse shaping methods; Shape;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOM.1985.1096383
