@inproceedings{84f2e05c93434715a0137290845bfcc4,
title = "PCPV: Pattern-based Cost-efficient Proactive VNF placement and chaining for value-added services in content delivery networks",
abstract = "Value-added services (VASs) are an integral part of todays Content Delivery Networks (CDNs). They can be implemented as a chain of Virtual Network Functions (VNFs). These chains need to be placed in an efficient way in CDNs in order to optimize quality of service (QoS) for end-users(EUs) while minimizing cost for providers. We formulate the problem as an Integer Linear Program (ILP) and propose a Pattern-based Cost-efficient Proactive VNF placement and chaining (PCPV) algorithm. The objective is to find the optimal number, location and chaining of VNFs in such a manner that the cost is minimized while QoS is met. Apart from cost minimization, the support for large-scale CDNs with a large number of physical machines (servers) and EUs is an important feature of the proposed algorithm. Through simulations, the algorithm behavior for small-scale to large scale CDN networks is analyzed.",
keywords = "Content Delivery Networks, Cost, Network Function Virtualization, Placement, Virtual Network Function",
author = "Shohreh Ahvar and Jagruti Sahoo and Ehsan Ahvar and Mouhamad Dieye and Roch Glitho and Halima Elbiaze and Noel Crespi",
note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 4th IEEE Conference on Network Softwarization and Workshops, NetSoft 2018 ; Conference date: 25-06-2018 Through 29-06-2018",
year = "2018",
month = sep,
day = "10",
doi = "10.1109/NETSOFT.2018.8459986",
language = "English",
isbn = "9781538646335",
series = "2018 4th IEEE Conference on Network Softwarization and Workshops, NetSoft 2018",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "424--432",
booktitle = "2018 4th IEEE Conference on Network Softwarization and Workshops, NetSoft 2018",
}