| 一种低延时的无线传感器网络MAC协议 |
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| 引用本文： | 祝家钰,龙昭华,马永建.一种低延时的无线传感器网络MAC协议[J].传感器与微系统,2015(6). |
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| 作者姓名： | 祝家钰 龙昭华 马永建 |
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| 作者单位： | 重庆邮电大学 计算机网络与通信技术市级重点实验室,重庆,400065 |
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| 基金项目： | 国家自然科学基金资助项目(61301123)；重庆市教委科学技术研究项目 |
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| 摘 要： | 针对典型无线传感器网络X-MAC协议在多跳环境下累积延迟问题，提出一种具有低时延的Ex-MAC协议。利用管理邻居节点工作周期和虚通道算法，使得虚通道中的所有节点近似于同步，从而减少数据传输延迟，而且不需要交换同步控制帧。仿真结果与X-MAC协议相比，减少了端到端的延迟和数据包冲突的几率，提高了网络的吞吐量。
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| 关 键 词： | 无线传感器网络 媒体访问控制协议 低延时 |
A low-latency MAC protocol for wireless sensor networks |
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| ZHU Jia-yu,LONG Zhao-hua,MA Yong-jian.A low-latency MAC protocol for wireless sensor networks[J].Transducer and Microsystem Technology,2015(6). |
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| Authors: | ZHU Jia-yu LONG Zhao-hua MA Yong-jian |
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| Abstract: | Aiming at accumulative latency problem of typical X-MAC protocol of typical wireless sensor networks ( WSNs),a Ex-MAC protocol combining virtual channel and scheduling algorithm is proposed. The protocol makes all nodes of virtual channel be approximately synchronous,so as to reduces data transmission delay without exchanging synchronous control frame. The simulation results shows that Ex-MAC can reduce the end-to-end delay,the ratio of data packet conflict and increase throughput of networks. |
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| Keywords: | wireless sensor networks( WSNs) MAC protocol low-latency |
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