Title :
Performance analysis of optical CDMA communication systems with quadratic congruential codes
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Chung-Li, Taiwan
Abstract :
Optical multiple-access systems using code-division multiple-access (CDMA) technique are investigated. The overall system performance is calculated. Quadratic congruential codes are considered. A theoretical analysis of the output current distribution of optical receivers with avalanche photodetectors is developed. The exact mean and variance of the output statistic are derived for the Gaussian approximation. The effect of multiple-user interference, shot noise, and thermal noise are all considered. The system capacity is illustrated by the number of allowed users for fixed bit error rate and received signal power
Keywords :
Gaussian processes; approximation theory; channel capacity; code division multiple access; codes; current distribution; optical fibres; optical receivers; photodetectors; shot noise; statistical analysis; thermal noise; Gaussian approximation; avalanche photodetectors; bit error rate; code division multiple access; mean; multiple user interference; optical CDMA communication systems; optical multiple access systems; optical receivers; output current distribution; output statistic; performance analysis; quadratic congruential codes; received signal power; shot noise; system capacity; system performance; thermal noise; variance; Communication systems; Current distribution; Gaussian approximation; Multiaccess communication; Optical noise; Optical receivers; Performance analysis; Photodetectors; Statistical distributions; System performance;
Conference_Titel :
Spread Spectrum Techniques and Applications Proceedings, 1996., IEEE 4th International Symposium on
Conference_Location :
Mainz
Print_ISBN :
0-7803-3567-8
DOI :
10.1109/ISSSTA.1996.563812
