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    Minimizing correlation effect using zero cross correlation code in spectral amplitude coding optical code division multiple access

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    Minimizing correlation effect using zero cross correlation code in spectral amplitude coding optical code division multiple access.pdf (19.62Kb)
    Date
    2012-01
    Author
    Anuar, Mat Safar, Ir. Dr.
    Syed Alwee Aljunid, Syed Junid, Prof. Dr.
    Amir Razif Arief, Jamil Abdullah, Dr.
    Junita, Mohd Nordin
    Mohamad Naufal, Mohamad Saad, Assoc. Prof.
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    Abstract
    The use of minimal multiple access interference (MAI) in code design is investigated. Applying a projection and mapping techniques, a code that has a zero cross correlation (ZCC) between users in optical code division multiple access (OCDMA) is presented in this paper. The system is based on an incoherent light source-LED, spectral amplitude coding (SAC), and direct detection techniques at the receiver. Using power spectral density (PSD) function and Gaussian approximation, we obtain the signal-to-noise ratio (SNR) and the bit-error rate (BER) to measure the code performance. Making a comparison with other existing codes, e. g., Hadamard, MFH and MDW codes, we show that our code performs better at BER 10 -9 in terms of number of simultaneous users. We also demonstrate the comparison between the theoretical and simulation analyses, where the results are close to one another.
    URI
    http://link.springer.com/article/10.1007%2Fs10043-012-0003-0
    http://dspace.unimap.edu.my:80/dspace/handle/123456789/31532
    Collections
    • Junita Mohd Nordin,Ts. Dr. [13]
    • Anuar Mat Safar, Prof. Ir. Dr. [25]
    • School of Computer and Communication Engineering (Articles) [280]
    • Syed Alwee Aljunid Syed Junid, Prof. Ir. Ts. Dr. [123]

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