New wavelength-time codes for high speed optical cdma networks
- Electrical & Electronic Technology Open Access Journal
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Chao Chin Yang
Department of Electro Optical Engineering, University of Kun Shan,Taiwan
Abstract
One new wavelength-time code family with short code lengths is proposed for optical code-division multiple access networks. With the special structure of the proposed codes, economical optical components can be used for coder realization and the resulting tunable coders are simpler with fast tuning speeds. The performance analysis is taken the beat noise during the photo-detecting process into account, and it shows that these code words can obtain bit error rates comparable to that of previous codes with short code lengths.
Keywords
FBG, OCDMA, Wavelength time codes, Access network, Techniques, Optical networks, Statistical multiplexing, Wavelength-hopping patterns, Prime hopping, Spreading pattern, Code family, Transmitting, Receiving, Code words, Spectral-amplitude-coding, Correlation