NDLI: Flow aggregation for SDN-based delay-insensitive traffic control in mobile core networks

Content Provider	IET Digital Library
Author	Minh, Quang Tran Le, Van An Dang, Tran Khanh Nam, Thoai Kitahara, Takeshi
Abstract	Mobile core networks have seen serious network resource contention among a huge amount of delay-sensitive and delay-insensitive traffic leading to network congestion or even failures. Delay-insensitive traffic which is commonly generated by background applications or the operating systems to update the system's status can be postponed to yield network resources for delay-sensitive traffic, especially in the peak times. This study proposes an efficient approach to delay-insensitive traffic control leveraging software defined network (SDN) techniques. The study devises an effective data structure, namely flow tree, to resolve the flow aggregation, an essential issue in SDN-based traffic control, especially when dealing with a huge number of small delay-insensitive traffic flows. The proposed approach significantly reduces the inherent communication cost between the controller and Openflow switches and the storage cost in switches' expensive memories. This approach is significantly robust in controlling a huge number of small flows which are common in the modern mobile core networks and Internet of things environments. Experimental results from both simulated and real datasets reveal the effectiveness and efficiency of the proposed scheme.
Starting Page	1051
Ending Page	1060
Page Count	10
ISSN	17518628
Volume Number	13
e-ISSN	17518636
Issue Number	Issue 8, May (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/13/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2018.5194
Journal	IET Communications
Publisher Date	2019-02-04
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Computer Communication Computer Network And Technique Data Structures Delay-insensitive Traffic Control Leveraging Software Delay-insensitive Traffic Flows Delay-sensitive Traffic File Organisation Flow Aggregation Flow Tree Huge Number Mobile Radio System Modern Mobile Core Network Network Congestion Network ReSource Network Technique SDN-based Delay-insensitive Traffic Control SDN-based Traffic Control Serious Network Resource Contention Software Defined Networking Telecommunication Congestion Control Telecommunication Traffic
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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