Efficient data collection for participatory sensing using smartphones

With the spread of high-performance mobile terminals that include sensors, participatory sensing is attracting attention for collecting sensor information using smartphones. Although there are two key advantages to this approach, its low cost and wide range of sensing, they come at the tradeoff of both the battery and storage. Therefore, efficient collection is required. There is also a challenge posed by how to collect data from environments in which the network infrastructure does not work. In this paper, we collect data using DTN and propose a new data collection method that reduces power consumption and the storage space required for nodes by spreading the location and time information of data in sinks. Simulation results show that the proposed method can achieve a high success rate with a small number of transmissions and storage compared with using Epidemic Routing of DTN.