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Titolo:
IMPROVED RECEIVERS FOR COHERENT FSK SYSTEMS
Autore:
GAO HS; SMITH PJ; SHAFI M;
Indirizzi:
VICTORIA UNIV WELLINGTON,INST STAT & OPERAT RES WELLINGTON NEW ZEALAND TELECOM NEW ZEALAND LTD,FUNDAMENTAL PLANNING WELLINGTON NEW ZEALAND
Titolo Testata:
Journal of lightwave technology
fascicolo: 11, volume: 16, anno: 1998,
pagine: 1973 - 1980
SICI:
0733-8724(1998)16:11<1973:IRFCFS>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
LASER PHASE NOISE; OPTICAL RECEIVERS; LINEWIDTH; PERFORMANCE;
Keywords:
FREQUENCY SHIFT KEYING; OPTICAL COMMUNICATION; RECEIVERS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
H.S. Gao et al., "IMPROVED RECEIVERS FOR COHERENT FSK SYSTEMS", Journal of lightwave technology, 16(11), 1998, pp. 1973-1980

Abstract

There has been considerable interest over the last decade in the detection of digital coherent lightwave signals corrupted by phase noise. However, the majority of the work has been in the performance analysisof various modulation schemes. In addition, the receivers studied have, in general, been zero-phase noise optimal or ad hoc modifications of these. In this paper, we consider the design problem of constructingoptimal receivers for systems using frequency shift keying (FSK), Using the innovations approach, we show the format of the optimal receiver and use a small phase noise approximation to derive suboptimal receivers. Also, receivers based on optimum linear filters are also derived. Both receivers are analyzed by simulation and performance improvements over the standard receivers are shown. Furthermore, the receivers developed can equally well be used to further improve the performance of other detection schemes such as postdetection filtering and time diversity, The methodology is also used to derive equivalent receivers for systems using on-off keying (OOK).

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Documento generato il 25/11/20 alle ore 09:53:15