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车载自组网中一种分布式自适应TDMA时隙分配策略 被引量：1

A Decentralized Adaptive TDMA Scheduling Strategy for VANET
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摘要 提出了一种适用于车载自组网的自适应TDMA时隙分配机制DATS,DATS利用节点的差异性优化TDMA时隙分配机制,并且能根据节点密度自适应地调节时隙分配比例。理论分析和实验结果表明,DATS时隙分配策略能提高节点竞争成功率,降低接入时延;与现有的几种协议相比能减少至少50%的节点冲突,且具有良好的可扩展性,能够适应局部节点密度的变化。 In this paper,a decentralized adaptive TDMA scheduling strategy （DATS） for Vehicular Ad Hoc Networks（VANET） is proposed.DATS optimizes the TDMA slot assignment mechanism by the difference of node.it can adjust the ratio of slot assignment according to the node density.The theoretical analysis and simulation experiments demonstrate the efficiency of DATS.DATS has higher successful assignment ratio and lower delay than several existing protocols.it can reduce collisions over 50% and it has a good scala-bility and adapts to the changes of node density in each direction.
作者 李攀 傅洪亮 王珂 杨卫东
机构地区 河南工业大学信息科学与工程学院 中国科学院信息工程研究所
出处 《电子质量》 2013年第1期1-5,9,共6页 Electronics Quality
关键词 车载自组网 MAC协议 时分多址 时隙分配 VANET（Vehicular Ad Hoc Networks） MAC protocol TDMA（time-division multiple access） Slotassignment
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献11

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同被引文献6

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电子质量
2013年 第1期

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