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Contributions to efficient resource management in virtual networks

機(jī)譯:對(duì)虛擬網(wǎng)絡(luò)中有效資源管理的貢獻(xiàn)

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摘要

Network virtualisation is a promising technique for a better future Internet by allowing for network resource sharing. However, resource sharing requires that virtual nodes and links be embedded onto substrate nodes and links (virtual network embedding), and thereafter the allocated resources dynamically managed throughout the lifetime of the virtual network (dynamic resource allocation). Since the constrained virtual network embedding problem is NP–Hard, many existing approaches are not only static, but also make simplifying assumptions, most of which would not apply in practical environments. This PhD research proposes improvements to both virtual network embedding and dynamic resource allocation. The objective is to achieve an efficient utilisation of physical network resources. To this end, we propose a path generation-based approach for a one-shot, unsplittable flow virtual network embedding, and a reinforcement learning-based dynamic allocation of substrate network resources.
機(jī)譯:通過(guò)允許網(wǎng)絡(luò)資源共享,網(wǎng)絡(luò)虛擬化是使未來(lái)互聯(lián)網(wǎng)更美好的有希望的技術(shù)。但是,資源共享要求將虛擬節(jié)點(diǎn)和鏈接嵌入到基板節(jié)點(diǎn)和鏈接(虛擬網(wǎng)絡(luò)嵌入)上,然后在虛擬網(wǎng)絡(luò)的整個(gè)生命周期中動(dòng)態(tài)管理分配的資源(動(dòng)態(tài)資源分配)。由于受約束的虛擬網(wǎng)絡(luò)嵌入問(wèn)題是NP-Hard,因此許多現(xiàn)有方法不僅是靜態(tài)的,而且還進(jìn)行了簡(jiǎn)化的假設(shè),其中大多數(shù)不適用于實(shí)際環(huán)境。該博士研究提出了對(duì)虛擬網(wǎng)絡(luò)嵌入和動(dòng)態(tài)資源分配的改進(jìn)。目的是實(shí)現(xiàn)物理網(wǎng)絡(luò)資源的有效利用。為此,我們提出了一種基于路徑生成的方法,用于單次,不可拆分的流虛擬網(wǎng)絡(luò)嵌入,以及基于增強(qiáng)學(xué)習(xí)的基礎(chǔ)網(wǎng)絡(luò)資源動(dòng)態(tài)分配。

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