PDMR: priority-based dynamic multi-path routing algorithm for a software defined network

The ever changing traffic and Quality-of-Service (QoS) requirements of different traffic classes in multimedia applications impose tremendous challenges to the routing algorithm design. To address these challenges, a novel priority-based dynamic multi-path routing algorithm (PDMR) over Software Defi...

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Vydané v:IET communications Ročník 13; číslo 2; s. 179 - 185
Hlavní autori: Jiawei, Wu, Xiuquan, Qiao, Chen, Junliang
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: The Institution of Engineering and Technology 18.01.2019
Predmet:
application services
changing traffic
delays
designated traffic
different QoS requirements
different traffic classes
existing nonpriority‐based schemes
link bandwidth
link cost function
link delay
link load
multimedia applications
multimedia communication
multimedia streams
network performance
network resources
novel priority‐based dynamic multipath routing algorithm
PDMR algorithm
quality of service
Quality‐of‐Service requirements
Research Article
respective priorities
routing algorithm design
software defined network
stringent QoS requirements
telecommunication network routing
telecommunication traffic
traffic flow
tremendous challenges
novel priority-based dynamic multipath routing algorithm
changing traffic
link cost function
PDMR algorithm
multimedia applications
traffic flow
link delay
software defined network
existing nonpriority-based schemes
designated traffic
network performance
respective priorities
stringent QoS requirements
tremendous challenges
multimedia communication
different QoS requirements
application services
quality of service
different traffic classes
multimedia streams
delays
telecommunication network routing
link bandwidth
network resources
routing algorithm design
telecommunication traffic
Quality-of-Service requirements
link load
ISSN:1751-8628, 1751-8636
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Popis
Shrnutí:The ever changing traffic and Quality-of-Service (QoS) requirements of different traffic classes in multimedia applications impose tremendous challenges to the routing algorithm design. To address these challenges, a novel priority-based dynamic multi-path routing algorithm (PDMR) over Software Defined Network (SDN) is proposed in this paper. PDMR comprehensively considers the priorities of multimedia streams and the real-time status of the link. The goal of PDMR is to determine what resources to be allocated to a set of flows keeping their priority, improving the utilization of network resources for satisfying stringent QoS requirements of the traffic flow. According to different QoS requirements in multimedia applications, traffic is classified into two classes and allocated their respective priorities. In addition, we derive a classification of the link cost function by considering the real-time parameters such as link bandwidth, link delay, and link load to allocate the resources flexibly for transmission and to reduce the influence of between traffic classes. Furthermore, our proposed communication model between application services and the controller, which can guarantee the reliable transmission of the designated traffic. By conducting extensive simulations, we demonstrate that our proposed PDMR algorithm significantly outperforms other existing non-priority-based schemes in improving network performance.
ISSN:1751-8628
1751-8636
DOI:10.1049/iet-com.2018.5212