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Optimizing spectral efficiency in multiwavelength optical CDMA system

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2 Author(s)
T. -W. F. Chang ; Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada ; E. H. Sargent

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.

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IEEE Transactions on Communications  (Volume:51 ,  Issue: 9 )