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首页> 外文会议>2017 15th International Conference on Quality in Research : International Symposium on Electrical and Computer Engineering >ZigBee based wireless sensor networks and performance analysis in various environments
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ZigBee based wireless sensor networks and performance analysis in various environments

机译：基于ZigBee的无线传感器网络和各种环境下的性能分析

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摘要

To achieve a reliable and robust system for environmental monitoring, there is an available technology that can be used to resolve this problem and moreover provide for better living. Wireless sensor networks (WSN) have been successfully applied in many environmental monitoring. An ad-hoc wireless sensor network consists of a number of small and self-power sensing devices (nodes) connected using effective wireless networks. Compared to wired networks, there are several challenges that must be addressed in wireless networks. These challenges are limitation in communication bandwidth and energy constraint in sensor node, therefore it is important to know their reliability and performance. This paper reports the development and performance analysis of an embedded wireless sensor network for temperature and humidity monitoring in the environment. The network itself consists of a coordinator or data gateway which wirelessly collect temperature and humidity data from several sensor nodes that are responsible to provide those data. Each sensor node is developed from an Arduino based microcontroller, Xbee wireless module based on ZigBee/IEEE 802.15.4 standards, and temperature and humidity sensor devices. The network quality of service (QoS) is investigated in terms of delay, throughput and packet loss as a function of sensor node distance and transmitted packet size over line of sight (LOS) and non-line of sight (NLOS) conditions. The throughput and packet delay are also measured as a function of the baud rate in point to point link. This experiment is performed to have an insight how the baud rate affects the latency of the communication over the ZigBee protocol. Next, we also considered the multi-hop scenario with the presence of router for relaying packets from the sensor node to the coordinator. The performance of multi-hop configuration is compared to that of direct transmission. Based on our analysis, it is concluded that the ZigBee based WSN is more suitable for low data rate applications.
机译：为了获得可靠且健壮的环境监控系统，可以使用一种可用的技术来解决此问题，并且可以提供更好的生活。无线传感器网络（WSN）已成功应用于许多环境监控中。临时无线传感器网络由使用有效无线网络连接的许多小型自供电传感设备（节点）组成。与有线网络相比，无线网络必须解决几个挑战。这些挑战是通信带宽的限制和传感器节点中的能量约束，因此了解它们的可靠性和性能非常重要。本文报告了用于环境温度和湿度监控的嵌入式无线传感器网络的开发和性能分析。网络本身由协调器或数据网关组成，它们从负责提供这些数据的多个传感器节点无线收集温度和湿度数据。每个传感器节点均由基于Arduino的微控制器，基于ZigBee / IEEE 802.15.4标准的Xbee无线模块以及温度和湿度传感器设备开发而成。根据延迟，吞吐量和数据包丢失（取决于传感器节点距离以及视线（LOS）和非视线（NLOS）条件下传输的数据包大小）的函数，研究了网络服务质量（QoS）。吞吐量和数据包延迟也根据点对点链路的波特率进行测量。执行此实验的目的在于了解波特率如何影响ZigBee协议上的通信延迟。接下来，我们还考虑了具有路由器的多跳场景，该路由器用于将数据包从传感器节点中继到协调器。将多跳配置的性能与直接传输的性能进行比较。根据我们的分析，可以得出结论，基于ZigBee的WSN更适合于低数据速率应用。

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