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Tokyo, February 4, 2010 – NEC Corporation (NEC; TSE: 6701), a global leader in networking, communications and information technology, announced today the development of dynamic optimal path management technologies for mobile and fixed networks using OpenFlow (*1), one of the Future Internet technologies.

These new technologies, including modules that observe the utilization status of multiple base stations for each mobile communication method, dynamically select the most suitable mobile communication routes by analyzing location information within mobile networks, received signal power level, communication resource utilization and mobile backhaul congestion.

The technologies also provide high quality services by dynamically switching between heterogeneous mobile communications methods and improve energy conservation by switching off low communication load base stations for mobile backhaul networks, including base stations, network lines, switches and servers.

NEC has already developed a prototype of Programmable Flow switch (*2) and completed a trial between Japan and the United States (*3). Furthermore, NEC jointly established the Clean State Laboratory with Stanford University (*4) and is conducting advanced research and development for the implementation of a global structure for Future Internet services.

These developments also provide a core technology using OpenFlow that enables efficient and flexible network management of mobile networks, which are constantly gaining speed and bandwidth.

Adoption of these technologies resolves the following issues:

1. Dynamic switching between multiple mobile communication methods (Attachment 1)

Dynamically switching between communication methods in response to congestion and environmental conditions makes it possible to continually provide end users with high quality service.
For example, NEC has verified successful transition between WiMAX and WiFi mobile communication methods in trials where seamless switching was automatically carried out as one network became congested with video content delivery.

2. Electric power-saving of mobile backhaul (Attachment 2)

Electricity can be conserved by condensing network paths during nighttime hours, when communication traffic is low, and turning off the power for excess transfer stations.
The above technologies each contribute to the ability of mobile communications carriers to reduce operational management costs and create new services.
Looking forward, NEC will continue to research and develop network operational management technologies that manage both fixed and mobile networks using OpenFlow.
These new technologies will be demonstrated at Mobile World Congress 2010 (MWC 2010), a premier industry event held in Barcelona, Spain, from February 15-18, 2010. (For more information regarding NEC’s activities at MWC 2010, please visit: http://www.nec.com/global/solutions/nsp/mwc2010/ )
These results were achieved in association with “Research and Development for Secured Cloud Networking,” contracted by the Ministry of Internal Affairs and Communications in the 2009 fiscal year.

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