SDN-Based Traffic Management Middleware for Spontaneous WMNs
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SDN‑Based Traffic Management Middleware for Spontaneous WMNs Paolo Bellavista1 · Alessandro Dolci1 · Carlo Giannelli2 · Dmitrij David Padalino Montenero1 Received: 1 August 2019 / Revised: 20 March 2020 / Accepted: 24 June 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Software Defined Networking (SDN), with its clear distinction of control and data planes, as well with its simple paradigm of logically centralized controller with global visibility of the whole targeted network status, is gaining momentum in different scenarios. However, its effective exploitation in Wireless Mesh Networks (WMNs) is still an open and emerging research topic, mainly due to the high dynamicity of some related deployment environments (e.g., spontaneous WMNs) and to the need of efficient solutions capable of locality-enhanced optimizations. Here we originally present motivations, challenges, design guidelines, and a prototype middleware implementation for SDN-based management of selected (most appropriate) traffic flows. Our solution advances the state of the art in the field by (i) allowing high flexibility via deployment and de/activation of flow management policies at provisioning time, (ii) supporting dynamicity via proper efficient handling node of join/leave events, and (iii) increasing scalability via a partially decentralized approach based on dynamically determined WMN “islands”, usually managed by separated SDN controllers that can seldom interact to federate their management decisions. In addition to design/implementation insights and to the availability of the prototype code, this paper provides the community with a significant novel contribution in terms of experimental performance results, which quantitatively demonstrate the feasibility and the effectiveness of the proposed approach. Keywords Spontaneous WMNs · Management middleware · Software Defined Networking · Overlay networking · Inter-Flow Management · Quality Management
* Carlo Giannelli [email protected] Extended author information available on the last page of the article
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Journal of Network and Systems Management
1 Introduction The availability of the upcoming 5G cellular standard with the already spread WiFi direct technology is paving the way for device-to-device (D2D) communication [1, 2]. This emerging approach fosters the adoption of novel service provisioning scenarios that can benefit from the opportunity to consider and use interconnected (and possibly mobile) devices in the local vicinity as resource/ service providers. This kind of approach originates and takes first inspiring ideas from traditional Wireless Mesh Network (WMN) solutions, which offered connectivity to final users in a large area by interconnecting multiple (usually fixed) infrastructured wireless routers, managed in a coordinated way to support client authentication/authorization and multi-hop routing. However, the involvement of heterogeneous and mobile devices, carried by users, within the network topology itse
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