Online drone-based data gathering strategies for ground sensor networks Online publication date: Thu, 24-Mar-2022
by Celia Yasmine Tazibt; Nadjib Achir; Tounsia Djamah
International Journal of Sensor Networks (IJSNET), Vol. 38, No. 3, 2022
Abstract: This paper proposes two path-planning schemes for data collection in WSN using a drone flying over the sensor nodes to collect their data. We assign a weight to each sensor node corresponding to its priority in the collection process. When the drone selects its destination node, it will choose the one having the highest weight. We have defined utility functions based on the sensor nodes' information disseminated in the wireless sensor network (WSN) using the optimised link state routing (OLSR) protocol. The information required to compute the nodes' weight is added to the exchanged packets during the execution of OLSR. The first proposed strategy is data-driven data gathering strategy (DDG) which uses the amount of stored data in each sensor node buffer. A priority is given to the nodes having the most significant data amount to collect. The second strategy is called time-driven data gathering strategy (TDG) where the age of the data is considered.
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