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引用次数: 19
摘要
sub - 1GHz频段的无线通信将成为无线智能电网的关键实现因素之一。作为智能电网的一部分，家庭区域网络(HAN)必须是可靠的、健壮的和安全的。2.4 GHz频段被广泛使用，例如Wi-Fi和ZigBee系统，但高度拥塞。低于1ghz的频段，如ISM(工业、科学和医疗)920/950MHz频段，提供较少干扰的无线信道。在消费市场上，很少有无线收发器可以在950MHz ISM频段上工作。然而，缺乏对传输特性的全面性能评估。我们对部署在多节点网络设置中模拟无线HAN系统的950MHz收发器进行了性能分析。我们提供了有关sub - 1ghz无线传感器的数据速率和相关误差统计的详细信息。讨论了sub - 1GHz无线传感器的传输边界，并研究了最佳调制方案。
Performance evaluation of Sub 1 GHz wireless sensor networks for the smart grid
Wireless communication in the sub 1GHz band is going to be one of the key enabler for the wireless smart grid. As part of the smart grid, home area networks (HAN) have to be reliable, robust, and secure. Frequency bands at 2.4 GHz are widely used, e.g., by Wi-Fi and ZigBee systems, but are highly congested. Frequency bands below 1 GHz, such as the ISM (industry, scientific and medical) 920/950MHz bands, offer less interfered wireless channels. There are few wireless transceivers available in the consumer market, which operate in the 950MHz ISM band. However, a thorough performance evaluation of the transmission characteristics is missing. We conducted a performance analysis of 950MHz transceivers which we deployed in a multi-node network setup to emulate a wireless HAN system. We contribute on details regarding the data rate of sub 1 GHz wireless sensors and the related error statistics. We discuss the transmission boundaries and investigate the optimal modulation schemes of sub 1GHz wireless sensors.
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