Proposal of Dynamic FEC Controls with Population Estimation Methods for Delay Tolerant Networks

In case of local areas, there are possibilities to isolate from other areas after earthquakes. Besides, the network diversity between urban and local area might cause the future problems of health or public services by information networks. The DTN (Delay Tolerant Networks) is considered to be one of the effective methods, and there are previous researches to improve the DTN routings. However, the current rapid developments of mobile devices such as data storages or broadband wireless networks have made the efficiency different as the previous researches. Therefore, we propose the Enhanced Media Coordinate System for DTN to the architecture in order to provide the Data Triage, Node Selection based on its Territory, and Dynamic FEC (Forward Error Correction). In this paper, the proposed Dynamic FEC with population estimation is especially explained, and the results of the computational simulation by the GIS map of a Japanese coastal town are reported. Then, the results are discussed for the future studies of DTN for Disaster Information Network System in local areas.