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分布式时隙同步抗时钟频率不一致性能分析 被引量：2

Anti clock frequency deviation performance analysis of decentralized slot synchronization
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摘要 针对节点时钟频率不一致而引起时隙漂移的情况,分析分布式时隙同步算法的性能。通过把一个时隙周期内的累积时钟偏差等效为时隙相位偏差,建立干扰模型,证明了采用分布式平均的时隙互同步算法可以避免节点时隙偏移量随时间的累积,并将节点之间的最大时隙偏差控制在一定范围内。最后,用计算机仿真和实物测试验证了分布式时隙同步算法可以保证节点之间的同步。 The performance of the distributed slot synchronization algorithm is analyzed under the situation of slot drift due to different crystal frequencies.An interference model is established by setting the accumulate clock deviation to be equivalent to a slot phase deviation.It is proved that the accumulation of slot deviation can be avoided and the maximum of slot deviation can be controlled within a limited range by using the distributed slot synchronization algorithm.Finally,the simulation and reality test show that using the distributed slot synchronization algorithm can assure the slot synchronization of each node in ad hoc network.
作者 杨琦 石江宏 陈辉煌
机构地区 厦门大学信息科学与技术学院
出处 《系统工程与电子技术》 EI CSCD 北大核心 2011年第5期1124-1128,共5页 Systems Engineering and Electronics
基金 国家自然科学基金(61001072) 高校博士点科研基金(20100121120020) 福建省科技重大专项(2009HZ0003-1) 福建省自然科学基金(2010J01347)资助课题
关键词 无线自组织网络 时隙同步 时钟偏移 分布式计算 ad hoc network slot synchronization clock frequency deviation decentralized computing
分类号 TN924 [电子电信—通信与信息系统]
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参考文献14

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二级参考文献36

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共引文献8

同被引文献33

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二级引证文献10

系统工程与电子技术
2011年 第5期

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