A P2P Delivery Method for Sensor Data Stream Based on Load Estimation from Collection Cycles

Due to the prevalence of sensors such as security cameras or environmental monitoring, sensor data stream delivery which means delivering the observed data continuously attracts great attention. For sensor data stream delivery, receivers collect data in various cycle by the use of them. We proposed a P2P-based method to distribute communication loads in the case of delivering the sensor data stream that have different data collection cycles. Although the existing method distributes communication loads by re-delivering the sensor data that have the same collection time, the load concentration to the longer cycle receivers is probable. Therefore, we propose a P2P delivery method to distribute communication loads by the estimation of each receiver´s loads and re-delivering from the lowest load receiver. We evaluated the effectiveness of proposal in simulation. By the result of simulations, we confirmed the load distribution in the case of many receivers at same time.