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Analysis of the spectral efficiency of frequency-encoded OCDMA systems with incoherent sources

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3 Author(s)
M. Rochette ; Dept. of Electr. & Comput. Eng., Univ. Laval, Quebec, Canada ; S. Ayotte ; L. A. Rusch

This paper presents the spectral efficiency of frequency-encoded (FE) optical code-division multiple-access (OCDMA) systems with incoherent sources. The spectral efficiency of five code families compatible with FE-OCDMA is calculated as a function of the number of users. Analytical equations valid in the limiting case of Gaussian noise are also developed for the bit-error rate and the spectral efficiency. Among the code families considered, the modified quadratic congruence code leads to the maximum achievable spectral efficiency.

Published in:

Journal of Lightwave Technology  (Volume:23 ,  Issue: 4 )