Abstract
Software Defined Networking (SDN) has been seen as a revolutionary and exciting network technology that aims to enable control and network management of various network types, whether wired or wireless. Nevertheless, SDN research focuses very little on wireless communication and, more specifically, on Wireless Mesh Networks (WMNs). Moreover, the issue of routing is vitally important in WMNs, but the legacy and traditional routing protocols cannot make the most of multiple paths between the source node and destination node due to the complexity and cost of the network. In this paper, we present SDNMesh, an SDN based routing architecture for WMNs. We combine SDN with WMN to allow mesh networks to meet current user requirements with several resources, coverage, and scalable high bandwidth capability. Apart from the mentioned capability, SDN’s unified approach leads to better network capacity management. Experiments have been carried out using the Mininet-WiFi simulation tool to create a network environment that allows integration of the two networking paradigms, centralized, and decentralized. Simulation results show that our SDNMesh routing solution performs better in terms of network performance metric throughput, packet loss ratio, and delay while comparing with traditional routing approaches such as OLSR, BATMAN, and an SDN based Three-Stage routing protocols. Moreover, experimental results show that SDNMesh gives better results in terms of the mentioned performance metrics.
Highlights
Current users’ demands and the rapidly increasing use of the network make the management of conventional legacy networks more complex and difficult to monitor
The main contributions of this paper are as follows: 1. We present a two-phase routing architecture for Software Defined Networking (SDN)-enabled Wireless Mesh Networks (WMNs) that addresses the dynamic configurations for the SDN controller to react efficiently to topological changes of the network keeping in view the mobility of mesh nodes
We propose a modification in the OpenFlow protocol by defining new messages to create efficient communication between SDN nodes and controller
Summary
Current users’ demands and the rapidly increasing use of the network make the management of conventional legacy networks more complex and difficult to monitor. Multi-hop setting induces network performance degradation and packet loss [12] Likewise, other variables such as variable quality of links, network asymmetry, and traffic load are major challenges that need to be addressed [13], [14]. Other variables such as variable quality of links, network asymmetry, and traffic load are major challenges that need to be addressed [13], [14] Their alteration can require complete or partial replacement of hardware equipment in WMNs network nodes once installed and deployed, resulting in significant increases in operating costs. We present a two-phase routing architecture for SDN-enabled WMN that addresses the dynamic configurations for the SDN controller to react efficiently to topological changes of the network keeping in view the mobility of mesh nodes. The rest of the paper is organized as follows; Section II presents the related work to the SDN based WMN routing architectures, Section III elaborates proposed routing architecture, and Section IV presents experimental evaluation and analysis of simulation results while Section V concludes the paper
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
