logical assignment 中文意思是什麼
logical assignment
解釋
邏輯賦值- logical : adj. 1. 邏輯的，邏輯上的；邏輯學上的。2. 合乎邏輯的。3. 邏輯上必然的。adv. -ly ,-ness n.
- assignment : n. 1. 分給，分配。2. 指定，委派。3. （理由等的）陳述；（錯誤等的）指出。4. （財產、權利的）轉讓，讓與。5. 讓與證書，委託證書。6. 〈美國〉任命；任務，工作；（課外）作業。
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First, the growing history and the basic principle of the wdm optical networks are introduced, then the construct of the wdm all - optical networks is discussed, physical topology and logical topology and so on. then, the routing technology in wdm system is presented in this paper, as well as key optical components in optical networks. the routing and wavelength assignment issue in the optimal design of rwa algorithm is particularly explored
論文介紹了波分復用系統的原理、發展歷程，討論了wdm全光網體系結構、網路物理拓撲和邏輯拓撲，光交換/光路由等技術和關鍵器件，著重研究波長路由型全光網優化設計中的路由和波長分配問題。 -
For a given network physical topology and long - term traffic pattern, design of delay - based logical topology can be formulated as a linear problem, a np - hard problem, which is computationally intractable for large size of networks. so, we pr opose a heuristic algorithm to address the problems of routing and wavelength assignment
基於業務平均跳數來衡量的模擬結果表明，在網路中不同qos要求的業務需求大致相當的情況下，不管網路負載如何變化，對某qos要求的vpn業務，總是能夠取得qos較之要低的業務更低的平均跳數，即更小的平均時延。
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