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期刊论文
Research of A New DS/WH En-/De-coding Scheme for Optical CDMA
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In this paper the direct spreading/wavelength hopping (DS/WH) eo-/de-coding scheme for optical code-division multiple access (OCDMA) is proposed. The system structure is designed and analyzed. A new code sequence-wavelength hopping extended quadratic congruence for prime code (WH EQC/prime code)-is adopted. It is shown that the code capability can be increased by increasing the number of discrete wavelengths or by employing asymmetric systems with different prime numbers for spreading and hopping (Ps and Ph). The Synchronous signal is designed and analyzed It is very easy for user to decode synchronously. The performance of the system is investigated and it is shown that the en-/de-coding scheme and system structurn are feasible.
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