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the use of mobile sinks in data collection has received much attention in recent years. In fact, mobility was introduced to solve problems that occur in data gathering with static sinks such as hotspots, quick energy depletion of sensor nodes and so on. Using mobile sinks provides an effective mechanism to improve reliability, security as well as connectivity within the network. Nevertheless, the sink's mobility poses new challenges, especially when the sink follows an unpredictable movementdoi:10.3991/ijoe.v13i09.7090 fatcat:vuqx7ohov5d6lgwmlz7hcnzkdu