Noncoherent Spectral/Time/Spatial Optical CDMA System Using 3-D Perfect Difference Codes

In this paper, we propose a family of newly constructed codes, named three-dimensional perfect difference codes (3-D PD codes), and a corresponding system structure for spectral/time/spatial optical code division multiple access (OCDMA). The 3-D PD codes, which are generated from the perfect differe...

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Veröffentlicht in:	Journal of lightwave technology 2009-03, Vol.27 (6), p.744-759
Hauptverfasser:	YEH, Bih-Chyun, LIN, Cheing-Hong, WU, Jingshown, FELLOW, Life
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Cancellation Code division multiple access Coding, codes Construction Degradation Detection, estimation, filtering, equalization, prediction Exact sciences and technology Information, signal and communications theory Interference Interference cancellation Interference suppression Mathematical analysis Matrices Maximal-area matrices codes modified quadratic congruence codes Multiaccess communication Multiple access interference multiuser interference Noise Noise cancellation Noise generators optical code division multiple access (OCDMA) Optical noise Optical polarization Optical telecommunications perfect difference codes Phase noise phase-induced intensity noise Signal and communications theory Signal, noise Spectra Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Three dimensional Transmission and modulation (techniques and equipments)
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Beschreibung
Zusammenfassung:	In this paper, we propose a family of newly constructed codes, named three-dimensional perfect difference codes (3-D PD codes), and a corresponding system structure for spectral/time/spatial optical code division multiple access (OCDMA). The 3-D PD codes, which are generated from the perfect difference set, can further suppress the phase-induced intensity noise (PIIN) and possess the multiuser interference (MUI) cancellation property. Compared with the OCDMA systems using modified quadratic congruence codes (MQC codes), maximal-area matrices codes (M-matrices codes), or 2-D PD codes, the proposed system can effectively suppress the PIIN and eliminate MUI. Hence, the proposed system not only has better performance, but also can accommodate more users.
ISSN:	0733-8724 1558-2213
DOI:	10.1109/JLT.2008.925680