Ultra-low duty cycle MAC with scheduled channel polling
Proceedings of the 4th international conference on Embedded networked sensor systems
Energy-Efficient Multihop Polling in Clusters of Two-Layered Heterogeneous Sensor Networks
IEEE Transactions on Computers
Clustering with case-based reasoning for wireless sensor network
ICAIT '08 Proceedings of the 2008 International Conference on Advanced Infocomm Technology
Priority-Based Hybrid Protocol in Wireless Sensor Networks
HPCC '09 Proceedings of the 2009 11th IEEE International Conference on High Performance Computing and Communications
Schedule Adaptation of Low-Power-Listening Protocols for Wireless Sensor Networks
IEEE Transactions on Mobile Computing
Low energy and low latency in wireless sensor networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
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Recently, wireless sensor network is widely used. The deployment of WSN in the field, however, is still restricted due to limited energy supply, limited computing power, limited buffer size, and packet delay. In this paper we present a new cluster model and polling protocol integrating the schedule polling and low power listening scheme. The new clustering approach allows short routing between the sensor nodes towards the base station. Also, the polling protocol uses smaller time slot resulting in shorter delay for data transmission. This significantly reduces the energy consumption of the cluster. The simulation results demonstrate that the proposed scheme can effectively reduce the delay and prolong the lifetime of the network.