On SDN-Driven Network Optimization and QoS Aware Routing Using Multiple Paths

Software Defined Networking (SDN) is a driving technology for enabling the 5th Generation of mobile communication (5G) systems offering enhanced network management features and softwarization. This paper concentrates on reducing the operating expenditure (OPEX) costs while i ) increasing the qualit...

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Bibliographic Details
Published in:IEEE transactions on wireless communications 2020-07, Vol.19 (7), p.4700-4714
Main Authors: Bagaa, Miloud, Dutra, Diego Leonel Cadette, Taleb, Tarik, Samdanis, Konstantinos
Format: Article
Language:English
Subjects:
5G mobile communication
Algorithms
Bandwidth
cloud networks
Configurations
Integer programming
Mobile communication systems
multi-path routing
Network management systems
Optimization
Provisioning
QoS
Quality of service
Quality of service architectures
Queues
Resource management
Routing
SDN
Software-defined networking
Switches
Wireless communication
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Summary:Software Defined Networking (SDN) is a driving technology for enabling the 5th Generation of mobile communication (5G) systems offering enhanced network management features and softwarization. This paper concentrates on reducing the operating expenditure (OPEX) costs while i ) increasing the quality of service (QoS) by leveraging the benefits of queuing and multi-path forwarding in OpenFlow, ii ) allowing an operator with an SDN-enabled network to efficiently allocate the network resources considering mobility, and iii ) reducing or even eliminating the need for over-provisioning. For achieving these objectives, a QoS aware network configuration and multipath forwarding approach is introduced that efficiently manages the operation of SDN enabled open virtual switches (OVSs). This paper proposes and evaluates three solutions that exploit the strength of QoS aware routing using multiple paths. While the two first solutions provide optimal and approximate optimal configurations, respectively, using linear integer programming optimization, the third one is a heuristic that uses Dijkstra short-path algorithm. The obtained results demonstrate the performance of the proposed solutions in terms of OPEX and execution time.
ISSN:1536-1276
1558-2248
DOI:10.1109/TWC.2020.2986408