传感技术学报Issue(7)：976-981,6.DOI:10.3969/j.issn.1004-1699.2014.07.021
多节点共享保障时隙分配策略
Guaranteed Time Slots Allocation in Multi-Node Wireless Sensor Networks
摘要
Abstract
With unique characteristics of low power consumption and low cost,IEEE 802. 15. 4 standard is widely used in the modern industrial wireless networks. It can provide the lowest 0. 006% of duty ratio to reduce power consumption,and offer real-time service for the node through the guarantee time slots( GTS) mechanism. However, IEEE 802. 15. 4 can only provide real-time guarantees service for certain nodes,which is lack of flexibility for large-scale networks. A shared security timeslot allocation policy by multi-node is present for overcome the shorting of special GTS allocation method,taking into account the traffic specifications and the delay requirements of the flows. The policy enables the use of a GTS by multiple nodes, and still ensure delay and bandwidth requirements. Numerical analysis clearly showed that,compared with the traditional method,the improvement of allocation policy can effectively improve the bandwidth utilization.关键词
工业无线网络/保障时隙分配/实时服务/带宽利用率Key words
industrial wireless network/GTS allocation/real-time service/bandwidth utilization分类
信息技术与安全科学引用本文复制引用
范书瑞,闫伸,高蒙..多节点共享保障时隙分配策略[J].传感技术学报,2014,(7):976-981,6.基金项目
河北省自然科学青年基金项目（F2013202102) （）
河北省科学研究与发展计划项目（11213566) （）
国家级大学生创新创业训练计划立项项目（201310080009) （）
