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    Optical domain service differentiation using spectral-amplitude-coding

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    Date
    2009
    Author
    S.B., Ahmad Anas
    Mohamad Khazani, Abdullah
    M., Mokhtar
    Syed Alwee Aljunid, Syed Junid
    S.D., Walker
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    Abstract
    We have implemented a new service differentiation technique in the optical domain using a spectral-amplitude-coding (SAC) variant of optical code division multiple access (OCDMA). The newly developed code, named KS (Khazani-Syed) is compared mathematically with other codes which use similar techniques. In our proposal, multiple weights are used to support 'triple-play' services (audio, video and data) with different quality-of-service (QoS) requirements. The results characterizing the bit-error-rate (BER) with respect to the total number of active users show that KS offers a significantly improved performance over the previous reported techniques by accommodating additional 30 users with shorter code length and smaller code weight at BER of 10-9. In variable weight system, we have shown that KS codes with larger weight always have the best performance when other users of different weights are present in the system.
    URI
    http://dspace.unimap.edu.my/123456789/6346
    http://www.sciencedirect.com/science/journal/10685200
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    • School of Computer and Communication Engineering (Articles) [280]
    • Syed Alwee Aljunid Syed Junid, Prof. Ir. Ts. Dr. [123]

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