WSNs中基于网络编码的低功耗数据重传策略  

Low power consumption data retransmission strategy in WSNs based on network coding

作　　者：龙昭华[1] 刘建军[1] 蒋贵全[1] 高永贵[1] 

机构地区：[1]重庆邮电大学计算机科学与技术学院,重庆400065

出　　处：《传感器与微系统》2013年第8期35-38,共4页Transducer and Microsystem Technologies

基　　金：国家重大科技专项资助项目(2009ZX03004-003-04);国家自然科学基金资助项目(61075019);重庆邮电大学自然科学基金资助项目(A2011-24)

摘　　要：在睡眠调度机制下,结合网络编码,提出了一种适合于有固定睡眠概率的无线传感器网络(WSNs)低功耗数据重传策略,该方法根据节点在不同时刻的休眠状况,将醒着节点丢失的数据包用网络编码进行重传,通过理论分析和仿真验证了该方法在保证数据正确重传的基础上,能够有效地减少数据包的传输次数,延长网络的使用寿命。With combination of sleep scheduling mechanism and network coding,a strategy for lowpower consumption data retransmission is proposed which is suitable for wireless senor networks（WSNs）with stable sleep probability.According to dormant status of nodes at different times,lost data packets of awake nodes can be retransmitted by network coding.At the same time,theoretical analysis and simulation can verify that the method can reduce times of transmission of data packets effectively on basis of assurance of correctness of retransmission,and life time of network can be prolonged.

关 键 词：睡眠调度 网络编码 无线传感器网络 低功耗 数据重传 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]