Disaster Information Network Based on Software Defined Network Framework

In this paper, we introduce Software Defined Network framework based on dynamic network reconfiguration method to improve the connectivity. Our network system is consisted of multiple mobile routers based on currently available wireless LANs including IEEE802.11b, g, j, n, IEEE802.16 (WiMAX), cellular networks, satellite IP network and green energy. Those wireless networks are interconnected by OpenFlow Switch and their links and routes are managed by OpenFlow Controller. The proper communication links and routes can be selected based on the required network characteristic, such as electro-magnetic field strength, throughput, latency, packet loss rate and communication distance. User can continue to transmit/receive the disaster information in disaster area even though a part of the network infrastructure is damaged due to the disaster using OpenFlow framework as software defined architecture and green based energy. In this paper, we designed and implemented a disaster information wireless network with currently available different wireless LANs and constructed a prototype system to evaluate the performance of the mobile router.