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.
© 2005 IEEE
Martin Rochette, Simon Ayotte, and Leslie A. Rusch, "Analysis of the Spectral Efficiency of Frequency-Encoded OCDMA Systems With Incoherent Sources," J. Lightwave Technol. 23, 1610- (2005)