원문정보
초록
영어
In this paper, we propose a specific time synchronization protocol called MSTSP (Master Slave Time Synchronization Protocol). We designed MSTSP based on the master-slave topology in order to synchronize the time of the heterogeneous sensor nodes. Heterogeneous sensor networks can be used in various risk-associated areas. Time synchronization among the heterogeneous sensor nodes is essential in Ubiquitous Sensor Network systems. In MSTSP, the time-sync master nodes can always be synchronized with the Sink Node of USN, because the sensor nodes which are homogeneous with the Sink Node become time-sync master nodes. And other sensor nodes which differ from the Sink Node must be time-sync slave nodes, which need to belong to one of the specific master nodes. The time-sync master nodes then enable time-sync slave nodes to be synchronized with the sleep periods. The proposed MSTSP is also useful for power saving by maintaining maximum sleep time.
목차
1. Introduction
2. Related Work
3. Master-Slave Time Synchronization Protocol for Heterogeneous USN
4. Experiments
5. Conclusions
Acknowledgements
References