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首页> 外文期刊>International Journal of Computer Networks & Communications >Performance Analysis of IEEE 802.15.4/Zigbee Standard Under Real Time Constraints
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Performance Analysis of IEEE 802.15.4/Zigbee Standard Under Real Time Constraints

机译：实时约束下IEEE 802.15.4 / Zigbee标准的性能分析

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摘要

In recent years, very interesting researches are concentrated to develop several protocols for Wireless sensor networks (WSN) and to explore WSN in various scenarios. The standardization of the IEEE 802.15.4 protocol as a flexible communication solution for low-rate wireless sensor networks leads to the widespread deployment of this technology in many potential applications with different requirements especially in industrial automation. The IEEE 802.15.4 specifies physical and media access control layers that could be optimized to ensure low-power consumption and to guarantee real-time constraints by using its guaranteed time slot (GTS) mechanism and enabling Beacon mode. Our focus in this paper is on real-time capabilities and reliability. We analyzed and compared the performance of the IEEE 802.15.4 standard using OMNET++ Simulator. Among the objectives of our study is to outline which degree the standard accomplish real time requirements. Different application scenarios were been evaluated. The analysis gives a full understanding of the behavior of the IEEE 802.15.4 access mechanism concerning data delivery delay, goodput, throughput and packet errors rate metrics. We have focused on single sink scenarios and we have analyzed some network performance according to nodes number. Our simulation results pave the way for an efficient dimensioning and deploying of an IEEE 802.15.4 cluster.
机译：近年来，非常有趣的研究集中在开发用于无线传感器网络（WSN）的几种协议并探索各种情况下的WSN。作为低速率无线传感器网络的灵活通信解决方案的IEEE 802.15.4协议的标准化，导致该技术在具有不同要求的许多潜在应用中广泛部署，尤其是在工业自动化中。 IEEE 802.15.4指定了物理和媒体访问控制层，可以通过使用其保证的时隙（GTS）机制并启用信标模式进行优化，以确保低功耗并保证实时约束。我们在本文中的重点是实时功能和可靠性。我们使用OMNET ++模拟器分析并比较了IEEE 802.15.4标准的性能。我们研究的目标之一是概述标准满足实时要求的程度。对不同的应用场景进行了评估。通过分析，可以全面了解IEEE 802.15.4访问机制在数据传输延迟，吞吐量，吞吐量和数据包错误率指标方面的行为。我们专注于单接收器方案，并且根据节点数分析了一些网络性能。我们的仿真结果为IEEE 802.15.4集群的有效尺寸确定和部署铺平了道路。

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