论文标题
多域虚拟网络嵌入具有延迟预测的算法
A multi-domain virtual network embedding algorithm with delay prediction
论文作者
论文摘要
虚拟网络嵌入（VNE）是网络虚拟化（NV）的关键部分，旨在将虚拟网络（VNS）映射到共享的基板网络（SN）。随着各种延迟敏感应用的出现，如何改善系统的延迟性能已成为学术界的热门话题。基于广泛的研究，我们提出了一个基于延迟预测（DP-VNE）的多域虚拟网络嵌入算法。首先，通过估计虚拟请求的延迟来选择候选物理节点，然后使用粒子群优化（PSO）算法来优化映射过程，以减少系统的延迟。仿真结果表明，与其他三种高级算法相比，所提出的算法可以显着减少系统延迟，同时保持其他指标不受影响。
Virtual network embedding (VNE) is an crucial part of network virtualization (NV), which aims to map the virtual networks (VNs) to a shared substrate network (SN). With the emergence of various delay-sensitive applications, how to improve the delay performance of the system has become a hot topic in academic circles. Based on extensive research, we proposed a multi-domain virtual network embedding algorithm based on delay prediction (DP-VNE). Firstly, the candidate physical nodes are selected by estimating the delay of virtual requests, then particle swarm optimization (PSO) algorithm is used to optimize the mapping process, so as to reduce the delay of the system. The simulation results show that compared with the other three advanced algorithms, the proposed algorithm can significantly reduce the system delay while keeping other indicators unaffected.
