Abstract—In this paper, we study the performance of optical code-division multiple access (OCDMA) systems using vector combinatorial (VC) code under various link parameters. The impact of the fiber dispersion effects on the multi-user interference (MUI) is reported using a commercial optical systems simulator, Virtual Instrument Photonic (VPITM). The VC code is compared mathematically with other codes which use similar techniques. We analyzed and optimized the data rate, fiber length, and channel spacing in order to reduce the BER without the need to deploy dispersion compensating devices. The performance and optimization of VC code in OCDMA system is reported. We have demonstrated that, for a high datarate (higher than 2.5 Gb/s), even if dispersion compensated devices are not deployed, the BER can be significantly improved when the VC code desired parameters are selected. We have shown that when compensation dispersion devices are not deployed in the system, there is a trade off between the limited dispersion effects and the MUI.
Index Terms—FBG, VC, SAC-OCDMA, MUI.
Hassan Yousif Ahmed is with the Electrical & Electronic Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 31750 Tronoh, Perak, MALAYSIA Tel: +605-368-8000 Fax: +605-365-7443 (e-mail: Hassan_uofg@yahoo.com).
Ibrahima Faye and N. M. Saad are with the Electrical & Electronic Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 31750 Tronoh, Perak, MALAYSIA Tel: +605-368-8000 Fax: +605-3657443 (email: ibrahima_faye@petronas.com.my, naufal_saad@petronas).
S. A. Aljined is with School of computer and communication Engineering, Universiti Malaysia Perlis, Malaysia.
Cite: Hassan Yousif Ahmed, Ibrahima Faye, N. M. Saad and S. A. Aljined, "Effects of the Vector Combinatorial code connection parameters on the performance of an OCDMA system for high-speed networks," International Journal of Computer Theory and Engineering vol. 1, no. 5, pp. 503-508, 2009.
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