Abstract
Wireless Mesh Networks (WMNs), have a potential offering relatively stable Internet broadband access. The rapid development and growth of WMNs attract ISPs to support users’ coverage anywhere anytime. To achieve this goal network architecture must be addressed carefully. Software Defined Networking (SDN) proposes new network architecture for wired and wireless networks. Software Defined Wireless Networking (SDWN) has a great potential to increase efficiency, ease the complexity of control and management, and accelerate technology innovation rate of wireless networking. An SDN controller is the core component of an SDN network. It needs to have updated reports of the network status change, as in network topology and quality of service (QoS) in order to effectively configure and manage the network it controls. In this paper, we propose Flat Distributed Software Defined Wireless Mesh Network architecture where the controller aggregates entire topology discovery and monitors QoS properties of extended WMN nodes using Link Layer Discovery Protocol (LLDP) protocol, which is not possible in multi-hop ordinary architectures. The proposed architecture has been implemented on top of POX controller and Advanced Message Queuing Protocol (AMQP) protocol. The experiments were conducted in a Mininet-wifi emulator, the results present the architecture control plane consistency and two application cases: topology discovery and QoS monitoring. The current results push us to study QoS-routing for video streaming over WMN.
Highlights
Wireless Mesh Networks (WMNs)are multi-hop networks that are regarded as a wireless potential key architecture providing wide Internet coverage for specific areas
The Ad-hoc On-Demand Distance Vector Routing (AODV) is used as a quality of service (QoS) routing protocol and delay is used as the main metric, but this work focuses on finding an appropriate architecture that allows using a state-of-art topology discovery and QoS monitoring using Link Layer Discovery Protocol(LLDP) to offer topological and QoS information for any QoS routing protocol that can reside as application on the application plane of the Software Defined Networking (SDN) controller in WMN
The main goal of our evaluation is to prove that using the FD-Software Defined Wireless Mesh Network (SDWMN) architecture allows using the same approach of the current SDN topology discovery, as in Section 4.1, there is no difference between the current mechanism and the first phase of the aggregated mechanism in regard to the topology discovery of the local domains
Summary
Wireless Mesh Networks (WMNs)are multi-hop networks that are regarded as a wireless potential key architecture providing wide Internet coverage for specific areas. The Ad-hoc On-Demand Distance Vector Routing (AODV) is used as a QoS routing protocol and delay is used as the main metric, but this work focuses on finding an appropriate architecture that allows using a state-of-art topology discovery and QoS monitoring using Link Layer Discovery Protocol(LLDP) to offer topological and QoS information for any QoS routing protocol that can reside as application on the application plane of the SDN controller in WMN. This is the heterogeneity and distributed nature that WMN calls for to be more robust to failure and adaptable to user requirements. For delivery security and reliability, AMQP is used for Coordinator implementation because it ensures Reliability of message deliveries, Rapid and ensured delivery of messages and Message acknowledgements
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