Wavelength Assignment in WDM Optical Networks with Limited-range Wavelength Conversion |
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| Authors: | Ye Tong Zeng Qingji Zhu Guolong Yang Junjie |
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| Institution: | Center for Broadband Optical Networking Technology, Shanghai Jiaotong University, Shanghai 200030, P.R.China;Center for Broadband Optical Networking Technology, Shanghai Jiaotong University, Shanghai 200030, P.R.China;Center for Broadband Optical Networking Technology, Shanghai Jiaotong University, Shanghai 200030, P.R.China;Center for Broadband Optical Networking Technology, Shanghai Jiaotong University, Shanghai 200030, P.R.China |
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| Abstract: | According to previous studies, limited range wavelength conversion (LWC) can improve the performance of optical network. In this paper, the effects of FWM (Four Wave Mixing) and XGM (Cross Gain Modulation) conversion are both examined. It is found that the performance difference between LWC and full conversion becomes quite remarkable with the increase in numbers of wavelengths per link. So in order to improve the performance of optical network with limited conversion in the case of large number of wavelengths, three simple dynamic wavelength assignment algorithms (LUWC, FUWC and WSM) are proposed. Simulation results show that the algorithms greatly reduce the blocking probabilities of networks with LWC. Moreover, the algorithms require no global information of network. |
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| Keywords: | limited wavelength conversion wavelength assignment WDM optical networks FWM XGM |
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