间断连接无线网络中能量有效的数据转发策略  

Energy-efficient data forwarding strategy in intermittent connected wireless networks

作　　者：甄岩[1,2] 许稳[1] 王汝言[1] 欧清海 

机构地区：[1]重庆邮电大学光通信与网络重点实验室,重庆400065 [2]国网信息通信产业集团有限公司,北京100031

出　　处：《工程科学学报》2016年第10期1489-1498,共10页Chinese Journal of Engineering

基　　金：重庆市自然科学重点基金资助项目(CSTC2013JJB40006);重庆市自然科学基金资助项目(CSTC2011JJA40043;CSTC2014JCYJA40039);重庆市青年科技人才培养计划资助项目(cstc2014kjrc-qnrc40001);国家自然科学基金资助项目(61371097)

摘　　要：针对间断连接无线网络中节点能量有限、节点间相遇持续时间较短和网络资源无法得到充分利用的问题,提出一种带有自适应异步唤醒的数据转发策略,综合考虑节点能耗和休眠机制,并结合灰色模型预测节点间相遇持续时间,优化节点探测阶段和数据转发阶段的能耗,进而实现高效数据转发的目的.结果表明:所提出的数据转发策略能够有效利用节点剩余能量和通信机会.与现有的转发策略相比,该策略能够在低能耗下有效改善网络的探测成功率和通信时延.In intermittent connected wireless networks,the energy resources of nodes are limited and the link duration is short,so the network resources cannot be fully used. This article introduces a data forwarding strategy with an adaptive asynchronous wakeup schedule,which synthesizes the energy consumption and dormancy mechanism of nodes,combines with the gray model to forecast the inter-node meeting duration,thus optimize the energy consumption of nodes in the detection and data forwarding phase,and finally achieves the purpose of efficient data forwarding. The results show that the proposed data forwarding strategy can effectively utilize the residual energy and communication opportunity of nodes. Compared with the existing forwarding strategies,this strategy can effectively improve the detection rate and communication time delay of the networks under low energy consumption.

关 键 词：无线网络 间断式 数据转发 剩余能量 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]