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IEEE 802.15.4/Zigbee规范因其低速率,低功耗和低成本的特征而非常适合作为WSN的无线通信技术.使用该技术构建簇树型WSN时,网络性能受哪些因素的影响,影响程度如何都是值得研究的问题.本文通过一个自建的簇树型WSN仿真模型,研究了中心协调器位置对节点接入成功率的影响;传感器节点发包速率和信号发射功率对吞吐量和传包率的影响,并对簇树形路由的寻址方式进行了改进,将跨点寻址应用在路由方式中,取得了良好的网络效果.
The IEEE 802.15.4 / Zigbee specification is well suited as a wireless communication technology for WSN due to its low rate, low power consumption and low cost characteristics.When using this technology to construct cluster tree type WSN, what factors affect the network performance, How are all worth to be studied.This paper studies the influence of the location of the central coordinator on the access success rate of a node by using a self-built clustered tree-type WSN simulation model. The effects of the sender rate and the signal transmission power of the sensor node on the throughput and packet transmission Rate of impact, and cluster tree routing addressing mode has been improved, the application of cross-point addressing in the routing mode, and achieved good network performance.