Spectrum-driven sleep scheduling algorithm based on reliable theory in cognitive radio sensor networks

摘要：

　　Sleep scheduling mechanism is used in the tradition sensor network to conserve battery power.However,in cognitive radio sensor networks (CRSNs),the sleep scheduling mechanism needs to consider the constantly changing spectrum states and makes some adjustments.In this paper,a heterogeneous hierarchical CRSNs model is briefly described and the reliable theory is introduced to construct the centralized sleep scheduling mathematical model.What”s more,considering the both traffic and sleep periods of sensor nodes,the spectrum-driven sleep scheduling algorithm (SSSA) for CRSNs is proposed and analyzed.The simulation results show that the traffic holding rate and energy efficiency can gain significant improvements.

关键词： wireless sensor network cognitive radio sleep scheduling reliability theory energy efficiency

作者: QIAO Ju-yi LIU Jia WANG Wei-dong ZHANG Ying-hai

作者单位: Key Laboratory of Universal Wireless Communications,Ministry of Education,Beijing 100876,China Information and Electronics Technology Laboratory,Beijing University of Posts and Telecommunications

会议类型: 国内会议

会议名称: 第六届中国传感器网络学术会议(CWSN 2012)

会议地点: 黄山

会议语种:英文

页码: 47-51,72

在线出版日期: 2012-10-25（万方平台首次上网日期，不代表论文的发表时间）