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Improving Energy Efficiency of Mobile WSN Using Reconfigurable Directional Antennas

机译:使用可重构定向天线提高移动WSN的能源效率

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摘要

Reconfigurable directional antennas (RDA) bring new opportunities to reduce data collision in wireless sensor networks (WSN). In this letter, a new reconfigurable directional antenna-based receiver-Initiated cycled receiver (RDA-RICER) medium access control (MAC) protocol is proposed for WSN nodes equipped with switched antennas. A low complexity and energy efficient scanning process is embedded in RDA-RICER to identify the direction providing the highest received signal strength Indicator between two nodes. OMNeT++ simulation results for a single hop network show that data collision rate can be drastically reduced compared with related MAC protocols, leading to a significant decrease in energy consumption. Our approach is also validated in the field using WSN platforms equipped with a four-direction RDA, and powered by solar cells.
机译:可重新配置的定向天线(RDA)带来了减少无线传感器网络(WSN)中数据冲突的新机会。在这封信中,针对配备了交换天线的WSN节点,提出了一种新的可重新配置的基于定向天线的接收器启动的循环接收器(RDA-RICER)媒体访问控制(MAC)协议。 RDA-RICER中嵌入了低复杂度和高能效的扫描过程,以识别在两个节点之间提供最高接收信号强度指示器的方向。单跳网络的OMNeT ++仿真结果表明,与相关的MAC协议相比,数据冲突率可以大大降低,从而大大降低了能耗。我们的方法还通过使用配备有四向RDA并由太阳能电池供电的WSN平台在现场进行了验证。

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