In this paper, we proposed LCX-MAC (local coordination X-MAC) as an extension of X-MAC. X-MAC is an asynchronous duty cycle medium access control (MAC) protocol. X-MAC used one important technique of short preamble which is to allow sender nodes to quickly send their actual data when the corresponding receivers wake up. X-MAC node keeps sending short preamble to wake up its receiver node, which causes energy, increases transmission delay, and makes the channel busy since a lot of short preambles are discarded, as these days Internet of Things (IoT) healthcare with different sensor nodes for the healthcare is time-critical applications and needs a quick response. A possible improvement over X-MAC is that local information of each node will share with its neighbour node. This local information exchanged will cause much less overhead than in the nodes which are synchronized. To calculate the effect of this the local coordination on X-MAC in this paper, we built an analytical model of LCX-MAC that incorporates the local coordination in X-MAC. The analytical results show that LCX-MAC outperformed X-MAC and X-MAC/BEB in terms of throughput, delay, and energy.

中文翻译：

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面向物联网医疗应用的改进的节能和端到端安全协议

在本文中，我们提出了LCX-MAC（本地协调X-MAC）作为X-MAC的扩展。X-MAC是异步占空比媒体访问控制（MAC）协议。X-MAC使用了一种重要的简短前导技术，即允许发送方节点在相应的接收方唤醒时快速发送其实际数据。X-MAC节点不断发送短的前同步码以唤醒其接收器节点，这导致能量，增加传输延迟并由于大量短的前同步码被丢弃而使信道繁忙，因为这些天，物联网（IoT）医疗保健采用了不同的传感器医疗保健的节点是时间紧迫的应用程序，需要快速响应。对X-MAC的可能改进是，每个节点的本地信息将与其邻居节点共享。交换的此本地信息将导致比同步节点少得多的开销。为了计算这种局部协调对X-MAC的影响，我们建立了一个LCX-MAC的分析模型，该模型在X-MAC中包含了局部协调。分析结果表明，LCX-MAC在吞吐量，延迟和能量方面均优于X-MAC和X-MAC / BEB。