Title :
Analysis of the spectral efficiency of frequency-encoded OCDMA systems with incoherent sources
Author :
Rochette, Martin ; Ayotte, Simon ; Rusch, Leslie A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. Laval, Quebec, Canada
fDate :
4/1/2005 12:00:00 AM
Abstract :
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.
Keywords :
Gaussian noise; code division multiple access; code division multiplexing; codes; error statistics; light sources; spectral analysis; Gaussian noise; bit-error rate; code division multiplexing; frequency-encoded OCDMA systems; incoherent sources; modified quadratic congruence code; optical code-division multiple-access; spectral efficiency; Bit error rate; Bit rate; Frequency; Iron; Large-scale systems; Optical network units; Optical sensors; Spectral analysis; Time division multiplexing; Wavelength division multiplexing; Code-division multiplexing; communication system performance; encoding; incoherent sources; optical noise;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2005.844201
