Optical wavelength/spatial coding system based on quadratic congruence code matrices

Author

Tsai, Chen-Mu

Author_Institution

Dept. of Comput. & Commun., Kun Shan Univ., Tainan Hsien

Volume

18

Issue

17

fYear

2006

Firstpage

1843

Lastpage

1845

Abstract

This letter proposes a wavelength/spatial optical code-division multiple-access system based on quadratic congruence code matrices (QCCM). According to the in-phase cross-correlation of the QCCM, multiple-access interference can be fully eliminated by using balanced photodetectors (PDs). Moreover, this proposal provides greater signal power than does the modified quadratic congruence (MQC) coding system. Compared with the maximal-area matrices (M-matrices) and MQC coding system, the simulated results indicate that the proposal can remarkably improve the system performance in the receiver PDs

Keywords

code division multiple access; encoding; matrix algebra; optical fibre communication; photodetectors; cross-correlation; maximal-area matrices; multiple-access interference; optical code-division multiple-access; photodetector; quadratic congruence code matrix; Bandwidth; Decoding; Multiaccess communication; Multiple access interference; Optical noise; Optical receivers; Phase noise; Photodetectors; Proposals; System performance; Multiple-access interference (MAI); optical code-division multiple-access (OCDMA); phase-induced intensity noise (PIIN);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2006.881210

Filename

1677632