NDLI: A Service Path Selection and Adaptation Algorithm in Service-Oriented Network Virtualization Architecture

Content Provider	IEEE Xplore Digital Library
Author	Kwonyong Lee Haerim Yoon Sungyong Park
Copyright Year	2013
Description	Author affiliation: Dept. of Comput. Sci. & Eng., Sogang Univ., Seoul, South Korea (Kwonyong Lee; Haerim Yoon; Sungyong Park)
Abstract	With the advances of networking and cloud computing technologies, many web services are often implemented as cloud services by different service providers, and some SPs compose those services to create an end-to-end network service. In this service-oriented network virtualization environment, two important but somehow contradictory technical challenges are 1) how to select an optimal service path in order to meet the QoS requirements by users, and 2) how to balance the loads to fully utilize the whole systems. In this paper, we present an adaptive service path selection algorithm in service-oriented network virtualization environment, which assures QoS and balances the load at the same time. The proposed algorithm selects appropriate component services from multiple candidate service instances running on virtual machines and creates an optimal service path satisfying the users' QoS requirements. Our algorithm also dynamically adapts to the optimal service path based on various changes. Since the proposed algorithm handles a variation of the multi-constrained path selection problem known as NP-complete, we formulate the problem using ant colony optimization algorithm. The experimental results show that our algorithm guarantees the maximal QoS to the users while balancing the load at the same time, and adapts to the optimal service path based on the situational changes.
Sponsorship	IEEE Tech. Comm. Distrib. Process.
Starting Page	516
Ending Page	521
File Size	602054
Page Count	6
File Format	PDF
ISBN	9781479920815
ISSN	15219097
DOI	10.1109/ICPADS.2013.93
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-12-15
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quality of service Overlay networks Indexes Equations Load management Time factors Mathematical model load balancing service-oriented network virtualization cloud computing service overlay network service path selection adaptation QoS
Content Type	Text
Resource Type	Article
Subject	Hardware and Architecture

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