An on demand Data Collection Scheme for Wireless Sensor Network Based on Rendezvous Points
K Anagha, G S Binu, M. Tech · 2015
Mobile nodes can be used for energy efficient data collection in wireless sensor network and to improve the network life time. The main challenge here is to find the most suitable data collection method for the mobile sink which reduces the data collection delay and energy consumption. In this paper Rendezvous points(RPs) are selected from the sensor network according to the weight and other nodes will send their data to this rendezvous nodes in an energy efficient way. An online data collection method is also proposed here to further reduce the energy consumption during the data collection. Whenever an event is detected by the mobile sink it need not visit every nodes to collect information, instead it can directly collect data from the RPs. Simulation is done in NS-2 and the results shows that this scheme helped to reduce the energy consumption of the sensor nodes compared to the existing methods.