A Study of Modified Prime Codes Optical CDMA for Wired-Wireless System

Chih Ta Yen; Wen Bin Chen

doi:10.4028/www.scientific.net/AMM.284-287.2672

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 284-287A Study of Modified Prime Codes Optical CDMA for...

A Study of Modified Prime Codes Optical CDMA for Wired-Wireless System

Abstract:

In this study, we propose optical code-division multiple-access (OCDMA) network for the radio-over-fiber (RoF) transmissions. The network encoder/decoders (codecs) are structured on the basis of arrayed-waveguide-grating (AWG) routers coded with modified prime codes (MPCs). Performances are numerically evaluated with the effect of phase-induced-intensity-noise (PIIN). It showed that the new code families with lower cross correlation can suppress the intensity noise and cancel out the multiple-access interference (MAI) in balanced detection process effectively and hence improve the system performance. By the proposed MPC-coded OCDMA ROF network codecs, each network requires only two AWG routers to accomplish spectral coding of radio base station (RBS) and decoding of control station (CS), thus, resulting in a simpler and lower cost system. It is possible to accomplish interference- and crosstalk-free optical CDMA system for RoF transmissions.

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Periodical:

Applied Mechanics and Materials (Volumes 284-287)

Pages:

2672-2676

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.284-287.2672

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Online since:

January 2013

Authors:

Chih Ta Yen, Wen Bin Chen

Keywords:

Arrayed-Waveguide Grating (AWG) Router, Modified Prime Codes (MPCs), Optical Code-Division Multiple Access (OCDMA), Radio-Over-Fiber (ROF)

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