研究目的
To propose an efficient four-wave mixing (FWM) based routing and wavelength assignment (RWA) scheme for the improvement of connection blocking probability in WDM/DWDM networks.
研究成果
The PWA scheme has proved itself as a more effective and efficient one for WDM/DWDM networks, significantly reducing the FWM effect and improving connection acceptance rates.
研究不足
The study focuses on the analytical computation using a specific NSFNet topology and may not cover all possible network configurations or real-world scenarios.
1：Experimental Design and Method Selection:
The study designs a new wavelength assignment scheme based on N number of partitions in transmission window to reduce FWM interference.
2：Sample Selection and Data Sources:
Uses a NSFNet topology for analytical computation which contains 10 nodes and 16 links.
3：List of Experimental Equipment and Materials:
Parameters used in simulation include receiver’s responsivity, signal current, input powers, fiber attenuation, degeneracy factor, efficiency, chromatic dispersion, dispersion slope, central wavelength, nonlinear coefficient, and space between channels.
4：Experimental Procedures and Operational Workflow:
The process involves computing all possible paths, assigning wavelengths using PWA schemes, calculating BER for each connection, and accepting or rejecting connections based on BER threshold.
5：Data Analysis Methods:
The performance is measured by calculating connection blocking probability related to variation in number of wavelengths and connection requests.
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