Title :
A new method for developing optical CDMA address code sequences using the genetic algorithm
Author :
Sadot, D. ; Mahlab, U. ; Natan, V. Bar
Author_Institution :
Dept. of Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel
Abstract :
A new method for developing optical CDMA address code sequences is presented. The method is based on the genetic algorithm, which has already shown success in developing two-dimensional correlation functions for pattern recognition applications. The algorithm is very flexible in terms of optimization criteria, thus adequate for various optical CDMA applications, including coherent and non-coherent systems. Preliminary computer experimental results are presented, indicating very good discrimination ratios, and very fast convergence of the search process. Important implications include synchronization-independent CDMA system design, optical beat noise reduction, optical power budget improvement, and enhanced security
Keywords :
code division multiple access; codes; convergence of numerical methods; genetic algorithms; light coherence; optical communication; optical fibre communication; sequences; coherent systems; computer experimental results; convergence; discrimination ratios; genetic algorithm; noncoherent systems; optical CDMA address code sequences; optical beat noise reduction; optical fibre LAN; optical power budget; optimization criteria; pattern recognition; search process; security; synchronization-independent CDMA system design; two-dimensional correlation functions; Bandwidth; Genetic algorithms; Multiaccess communication; Optical filters; Optical noise; Optical packet switching; Optical pulses; Optical receivers; Optical signal processing; Spread spectrum communication;
Conference_Titel :
Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-4788-9
DOI :
10.1109/ICC.1998.683031
