Title
Efficient Virtual Network Embedding of Cloud-Based Data Center Networks into Optical Networks
Abstract
The demand for data center bandwidth has exploded due to the continuous development of cloud computing, causing the use of network resources close to saturation. Optical network has become an encouraging technology for many burgeoning networks and parallel/distributed computing applications because of its huge bandwidth. This article focuses on efficient embedding of data centers into optical networks, which aims to reduce complexity of the network topology by using the parallel transmission characteristics of optical fiber. We first present a novel virtual network embedding (VNE) mathematical model used for optical data center networks. Then we derive a priority of location VNE algorithm according to node proximity sensing and path comprehensive evaluation. Furthermore, we propose routing and wavelength assignment for DCNs into optical networks, and identify the lower bound of the required number of wavelengths. Extensive evaluations show that the proposed embedding algorithm can reduce the average waiting time of virtual network requests by 20 percent, increase the request acceptance rate and revenue-overhead ratio by 13 percent, as compared to the latest VNE algorithm.
Year
DOI
Venue
2021
10.1109/TPDS.2021.3075296
IEEE Transactions on Parallel and Distributed Systems
Keywords
DocType
Volume
Data center network,network virtualization,optical network,embedding,performance evaluation
Journal
32
Issue
ISSN
Citations 
11
1045-9219
1
PageRank 
References 
Authors
0.35
0
5
Name
Order
Citations
PageRank
Weibei Fan111.36
Fu Xiao211535.24
Xiaobai Chen311.36
Lei Cui410.35
Shui Yu52365208.84