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A pseudo-orthogonal prime sequence code and a modified prime sequence code using the elements of Galoi's Field (GF) for a particular prime number have been developed. Bit-error rate performances using Gaussian approximation technique have been made. The capacities of the prime sequence codes are determined. Detailed simulation results on the performance of the codes are presented. The codes are useful for medium access in fiber optic CDMA LAN. Fiber Optical Code Division Multiple-Access (FO-CDMA) that allows multiple users to share a common optical channel simultaneously and asynchronously, is considered as one of the most promising technologies for the next generation broadband access network.
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