Maximum-likelihood symbol synchronization and detection of OPPM sequences

Author

Patarasen, S. ; Georghiades, Costas N.

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX

Volume

42

Issue

6

fYear

1994

fDate

6/1/1994 12:00:00 AM

Firstpage

2282

Lastpage

2290

Abstract

For an optical Poisson channel, we consider the problem of symbol synchronization and detection of chip-synchronized, random overlapping pulse-position modulation (OPPM) sequences. Maximum-likelihood algorithms are derived for both synchronization and detection and for soft and hard data, and their performances are evaluated through simulations and an upper bound on the symbol detection and symbol synchronization probabilities. As for the case of pulse-position modulation previously studied, it is seen that a performance ceiling exists when only chip synchronization is present, which can be removed through the periodic insertion of synchronizable symbols in the random data stream

Keywords

maximum likelihood estimation; optical modulation; pulse position modulation; signal detection; stochastic processes; synchronisation; telecommunication channels; OPPM sequence; chip-synchronized sequences; hard data; maximum-likelihood algorithms; maximum-likelihood symbol detection; maximum-likelihood symbol synchronization; optical Poisson channel; pulse-position modulation; random data stream; random overlapping sequences; simulations; soft data; symbol detection probability; symbol synchronization probability; upper bound; Communications Society; Maximum likelihood detection; Optical fiber communication; Optical modulation; Optical pulses; Performance evaluation; Pulse modulation; Senior members; Throughput; Upper bound;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.293680

Filename

293680