Research Article
Scheduling Based on Time-Sensitivity for Wireless Sensor Network
@INPROCEEDINGS{10.1109/CHINACOM.2008.4685047, author={XU Jiu qiang and ZHAO Hai and GAO Wei and ZHU Jian and WANG Jing shi}, title={Scheduling Based on Time-Sensitivity for Wireless Sensor Network}, proceedings={ChinaCom2008-Wireless Communications and Networking Symposium}, publisher={IEEE}, proceedings_a={CHINACOM2008-WCN}, year={2008}, month={11}, keywords={Sensor networks; sensor classification; time-sensitivity; energy-efficient scheduling}, doi={10.1109/CHINACOM.2008.4685047} }- XU Jiu qiang
ZHAO Hai
GAO Wei
ZHU Jian
WANG Jing shi
Year: 2008
Scheduling Based on Time-Sensitivity for Wireless Sensor Network
CHINACOM2008-WCN
IEEE
DOI: 10.1109/CHINACOM.2008.4685047
Abstract
A key factor affecting the lifetime of wireless sensor networks(WSN) is its limited energy. Firstly, Ratio of energy cost of different parts of a sensor node and time-dependent difference of data gathered is presented. Then, in order to prolong the lifetime of WSN under the limited energy, time-sensitivity of sensor is defined, sensors are classified based on it, scheduling for data gathering with time-sensitivity is presented and the ratio of energy saving is analyzed theoretically. Finally, the scheduling for data gathering based on time-sensitivity is implemented on Micaz platform, experimental data is gathered by simulation and measurement. The result illuminates that the scheduling based on time-sensitivity can reduce energy consumption by reducing data quantity transmitted, and it is more observable as the time-sensitivity become lower.