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Modified Pseudo Orthogonal M-sequence Sets for Synchronous Optical-CDMA
Yusuke Kozawa,Hiromasa Habuchi 대한전자공학회 2008 ITC-CSCC :International Technical Conference on Ci Vol.2008 No.7
In this paper, to increase normalized throughput of the optical code-divisionmultiple-access (CDMA) system, optical-CDMA systems with multi-pulse pulse position modulation (MPPM) using the modified pseudo orthogonal M-sequence sets is proposed. The throughput performance and bit error rate (BER) are evaluated by theoretical analysis. Consequently, the normalized throughput of the proposed system can achieve 1.35 [bit/chip] when the number of slots per frame is 16. Furthermore, BER of the proposed system is superior to that of the conventional systems.