Paper Info
Title
Wireless Mesh Software Defined Networks (wmSDN)
Abstract
In this paper we propose to integrate Software Defined Networking (SDN) principles in Wireless Mesh Networks (WMN) formed by OpenFlow switches. The use of a centralized network controller and the ability to setup arbitrary paths for data flows make SDN a handy tool to deploy fine-grained traffic engineering algorithms in WMNs. However, centralized control may be harmful in multi-hop radio networks formed by commodity devices (e.g. Wireless Community Networks), in which node isolation and network fragmentation are not rare events. To exploit the pros and mitigate the cons, our framework uses the traditional OpenFlow centralized controller to engineer the routing of data traffic, while it uses a distributed controller based on OLSR to route: i) OpenFlow control traffic, ii) data traffic, in case of central controller failure. We implemented and tested our Wireless Mesh Software Defined Network (wmSDN) showing its applicability to a traffic engineering use-case, in which the controller logic balances outgoing traffic among the Internet gateways of the mesh. Albeit simple, this use case allows showing a possible usage of SDN that improves user performance with respect to the case of a traditional mesh with IP forwarding and OLSR routing. The wmSDN software toolkit is formed by Open vSwitch, POX controller, OLSR daemon and our own Bash and Python scripts. The tests have been carried out in an emulation environment based on Linux Containers, NS3 and CORE tools.
Year
DOI
Venue
2013
10.1109/WiMOB.2013.6673345
Wireless and Mobile Computing, Networking and Communications
Keywords
Field
DocType
IP networks,Internet,internetworking,network servers,software radio,telecommunication network routing,telecommunication traffic,wireless mesh networks,Bash scripts,CORE tools,IP forwarding,Internet gateways,Linux Containers,NS3 tools,OLSR daemon,OLSR routing,Open vSwitch,OpenFlow switches,POX controller,Python scripts,arbitrary paths,centralized network controller,commodity devices,controller logic,data flows,data traffic routing,emulation environment,fine-grained traffic engineering algorithms,multihop radio networks,network fragmentation,node isolation,traffic engineering use-case,wireless community networks,wireless mesh software defined networks,wmSDN,Community Networks,Software Defined Networking,Traffic engineering,Wireless Mesh Networks
Mesh networking,Switched mesh,Computer science,Internet traffic engineering,Computer network,Order One Network Protocol,Ad hoc wireless distribution service,OpenFlow,Wireless mesh network,Software-defined networking,Distributed computing
Conference
ISSN
Citations 
PageRank 
2160-4886
42
1.76
References 
Authors
4
4
Name
Order
Citations
PageRank
A. Detti154747.83
Claudio Pisa2421.76
Stefano Salsano3421.76
Blefari-Melazzi, N.4432.45