智能电网中智能电网与WLAN/ZigBee的共存

Ruofei Ma, W. Meng, Hsiao-Hwa Chen, Yu-Ren Huang
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引用次数: 19

摘要

IEEE 802.15.4g定义了智能计量公用事业网络(太阳),以实现智能电网中的系统控制和信息传输。然而,在非授权频带上的共享操作使得大多数SUN频道在异构通信环境中与无线局域网(WLAN)或ZigBee频道重叠。因此,太阳和无线局域网/ zigbee的共存是一个至关重要的问题,这是本文的重点。特别是,我们将找到一种解决方案,以减轻在同一频段上运行的太阳对WLAN和ZigBee的干扰。应用解析模型对不同干扰情况下的SUN误码率性能进行了评估。仿真结果表明,频率偏移和分离距离在共存情况下起着重要的作用。然后,我们使用包错误率(PER)计算模型来分析PER性能,以确定SUN接收器和WLAN/ZigBee发射器之间的最小分离距离。最后,提出了一种基于多网关无线网状拓扑的共存方案,以减轻WLAN/ZigBee的干扰。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Coexistence of smart utility networks and WLAN/ZigBee in smart grid
IEEE 802.15.4g defines smart metering utility networks (SUNs) to enable system control and information transfer in smart grid. However, sharing operation on unlicensed bands makes most SUN channels to overlap with wireless local area network (WLAN) or ZigBee channels in a heterogeneous communication environment. Thus, coexistence of SUNs and WLANs/ZigBees is a crucial issue, which is the focus of this paper. In particular, we will find a solution to mitigate WLAN and ZigBee interferences on SUNs operating in the same band. Analytical model is applied to evaluate bit error rate (BER) performance of a SUN in different interference scenarios. The simulation shows that frequency offset and separation distance play important roles in coexistence situations. We then use a packet error rate (PER) calculation model to analyze the PER performance in order to determine the minimum separation distances between a SUN receiver and WLAN/ZigBee transmitters. Finally, a coexistence solution based on multiple gateway wireless mesh topology is proposed for SUNs to mitigate WLAN/ZigBee interferences.
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