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摘要:
This paper presents a mathematical model based on dynamic pump-wavelength selection for an optical packet switch (OPS). In the OPS, multiple packets that carry the same wavelength from different input ports could be addressed to the same output port at the same time slot. This condition is called wavelength contention. Of those contended packets, only one is forwarded to the output fiber while the others are dropped. Parametric wavelength conversion is used to convert the contended wavelengths into available non-contending wavelengths. The OPS based on the dynamic pump-wavelength selection scheme, where the pump-wavelengths are adjusted based on the requests in every time slot, uses a heuristic matching algorithm to minimize the number of packet losses. However, there is no guarantee that the heuristic algorithm outputs the optimum result. The mathematical model presented in this paper is used to confirm the performance of the heuristic matching algorithm for the DPS-based OPS. A simulation shows that the heuristic matching algorithm achieves the same performance as the optimum solution provided by the mathematical model.
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文献信息
篇名 Mathematical Model for Dynamic Pump-Wavelength Selection Switch
来源期刊 最优化(英文) 学科 数学
关键词 Optical PACKET SWITCHING WAVELENGTH CONVERTER Optimization
年,卷(期) 2015,(1) 所属期刊栏目
研究方向 页码范围 1-9
页数 9页 分类号 O1
字数 语种
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研究主题发展历程
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Optical
PACKET
SWITCHING
WAVELENGTH
CONVERTER
Optimization
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期刊影响力
最优化(英文)
季刊
2325-7105
武汉市江夏区汤逊湖北路38号光谷总部空间
出版文献量(篇)
65
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