Abstract: Mobile sink for wireless sensor network is an efficient way to prolong the network lifetime. We studied a sce- nario where the mobile sink node is located in a duadcopter which is in charge of data gathering from the wireless sensor network. After analyzing the properties of mobile sink node during flying, we gave the theoretical constraints for the mobile sink node in terms of mobile trace, velocity and height for the low power wireless communication. According to these constraints, we proposed the data amount based local optimal mobile trace control approach for the mobile sink node, so as to gather from the sensor network efficiently. Explicit simulations show that the proposed approach is feasi- ble, which provides a theoretical basis for such applications.

Key words: Mobile sink node, Local optimal, Routing, Mobile trace