基于事件驱动型的WSN跨层MAC协议

发布时间：2018-01-15 15:36

本文关键词：基于事件驱动型的WSN跨层MAC协议　出处：《重庆邮电大学学报(自然科学版)》2017年03期 　论文类型：期刊论文

【摘要】：传统的S-MAC(self-organizing medium access control)协议采用了协商一致的睡眠调度机制,在网络中形成虚拟簇的同时引入自适应侦听过程,但是由于增加了睡眠时间而限制了网络吞吐量,导致网络开销较大和端到端传输时延较长。为此,提出一种基于事件驱动型的跨层媒体接入控制协议(event driven cross layer-media access control,EDC-MAC)。采用跨层优化的方法,同时考虑网络层和MAC层,并且依据网络数据传输的特点将网络分为非事件状态和事件激活状态。有效地节约了能量,并减少了事件汇报时延。此外,当节点被激活处于事件激活状态时,采用分簇的方法将事件区域内的节点动态分簇,有效地减少了传输数据的能量开销。通过理论分析和仿真验证了EDC-MAC协议在相同数量感知节点情况下相对S-MAC协议能够平均减少时延35%左右,提高网络剩余能量10%左右。
[Abstract]:The traditional S-MAC self-organizing medium access control protocol adopts a consensus sleep scheduling mechanism. At the same time, adaptive listening process is introduced to form virtual clusters in the network, but the network throughput is limited by increasing sleep time, which leads to high network overhead and long end-to-end transmission delay. This paper presents an event-driven cross-layer media access control protocol named event driven cross layer-media access control. EDC-MAC adopts cross-layer optimization method, considering both network layer and MAC layer. According to the characteristics of network data transmission, the network is divided into non-event state and event activation state, which effectively saves energy and reduces event reporting delay. In addition, when the node is activated in event activation state. The clustering method is used to dynamically cluster the nodes in the event region. The theoretical analysis and simulation show that the EDC-MAC protocol can reduce the average delay by 35% left compared with S-MAC protocol under the same number of perceptual nodes. Right. The remaining energy of the network is increased by about 10%.
【作者单位】：吉林大学通信工程学院;
【基金】：国家自然科学基金(61107040)~~
【分类号】：TN929.5;TP212.9
【正文快照】： 0引言21世纪以来无线传感器网络(wireless sensornetwork,WSN)[1-5]作为物联网底层的感知网络之一被广泛关注。随着WSN的日益成熟,逐渐出现了各种不同的应用场景。如实现对外界环境进行周期性检测的时间驱动型WSN和对大量突发事件进行实时处理的事件驱动型WSN。本文所研究协议

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