Title :
Optimizing spectral efficiency in multiwavelength optical CDMA system
Author :
Chang, Tung-Wah Frederick ; Sargent, Edward H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
Abstract :
Prime codes are excellent candidates for use in multiwavelength optical code-division multiple-access (O-CDMA) systems. We show that in an O-CDMA system using two-dimensional single-pulse-per-row codes, a single choice of the number of wavelength channels can. accommodate different numbers of users with maximal spectral efficiency. The optimum single-user-detection spectral efficiency of the system can be reached using AND detection. A fixed-hardware network can readily be adapted in response to changes in the number of users and traffic load.
Keywords :
bandwidth allocation; code division multiple access; codes; optical fibre communication; signal detection; bandwidth allocation; multiwavelength optical CDMA system; multiwavelength optical code-division multiple-access; optical fiber communication; prime codes; signal detection; single-pulse-per-row codes; single-user-detection spectral efficiency; spectral efficiency optimization; Bandwidth; Bit error rate; Data communication; High speed optical techniques; Multiaccess communication; Multiple access interference; Optical fiber networks; Optical fibers; Telecommunication traffic; Two dimensional displays;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2003.816969
