Research Article
Time Division Flooding Synchronization Protocol for Sensor Networks
@INPROCEEDINGS{10.1109/MOBIQ.2007.4451045, author={ Yi Zeng and Bo Hu and Hui Feng}, title={Time Division Flooding Synchronization Protocol for Sensor Networks}, proceedings={2nd International ICST Workshop on Advances in Wireless Sensor Networks 2007}, publisher={IEEE}, proceedings_a={IWASN}, year={2008}, month={2}, keywords={Clocks Energy consumption Energy efficiency Floods Frequency synchronization Media Access Protocol Multiaccess communication Time division multiple access Wireless application protocol Wireless sensor networks}, doi={10.1109/MOBIQ.2007.4451045} }- Yi Zeng
Bo Hu
Hui Feng
Year: 2008
Time Division Flooding Synchronization Protocol for Sensor Networks
IWASN
IEEE
DOI: 10.1109/MOBIQ.2007.4451045
Abstract
Clock synchronization is an essential service for various applications in wireless sensor networks (WSNs). Most of available synchronization protocols are based on CSMA MAC scheme. They are energy inefficient in dense sensor networks. Despite many power-saving TDMA MAC protocols have been proposed, few of them are qualified to flood synchronization messages. The novel one here adopts a carefully designed time division flooding scheme, which divides time into slots and assigns each node a unique one for transmitting synchronization packets. In this way, the active duration of each node can be dramatically reduced. The new slot allocation policy guarantees active periods of nodes along the forwarding paths be scheduled successively, so synchronization packets can be spread out in a short time. Besides, a special clock frequency skew compensation technique is employed to prolong the re-synchronization interval. Simulation shows that our protocol achieves high energy efficiency and fast convergence speed.
