In the RFID sensor network (RSN), the devices communicate with each other by RF waves using the antennas through a propagation channel. A poor communication between these devices results in either a significant economic loss or security threats. The communication problems can have several origins depending on the type of antenna used and the nature of the propagation channel. In this work, our objective is to limit the communication problems between the nodes of this network that are linked to the characteristics of an indoor propagation channel. The goal is to predict the channel characteristics using the 3D ray tracing method in order to select the appropriate transmission parameters such as transmission power and duration of a symbol. To achieve this, we have modeled a building that is sectioned as a propagation channel where network devices are deployed for control and monitoring. The communication was made at 915 MHz using the quasi-isotropic 3D cubic antenna that we designed as well as a conventional dipole antenna in order to compare the results. We have found that the use of the 3D cubic antenna gives several advantages to the RFID sensor network compared to the most commonly used conventional dipole antenna, such as a transmission power of 0 dBm which automatically leads to an increase in the lifetime of the devices, as well as a minimum symbol duration of around 219.78 ns which gives a high bit rate.

中文翻译：

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改善用于控制和监视建筑物的RFID传感器网络设备之间的通信

在RFID传感器网络（RSN）中，这些设备使用天线通过传播信道通过RF波进行通信。这些设备之间的通讯不良会导致重大的经济损失或安全威胁。根据所用天线的类型和传播信道的性质，通信问题可能有多个根源。在这项工作中，我们的目标是限制与室内传播通道特性相关的该网络的节点之间的通信问题。目的是使用3D射线追踪方法预测信道特性，以便选择适当的传输参数，例如传输功率和符号持续时间。为了达成这个，我们对建筑物进行了建模，该建筑物被划分为传播通道，在该传播通道中部署了网络设备以进行控制和监视。为了比较结果，使用我们设计的准各向同性3D立方天线以及常规偶极天线以915 MHz进行了通信。我们已经发现，与最常用的传统偶极天线相比，使用3D立方天线为RFID传感器网络提供了多个优势，例如0 dBm的发射功率会自动延长设备的使用寿命，以及219.78 ns左右的最小符号持续时间，可提供较高的比特率。为了比较结果，使用我们设计的准各向同性3D立方天线以及常规偶极天线以915 MHz进行了通信。我们已经发现，与最常用的传统偶极天线相比，使用3D立方天线为RFID传感器网络提供了多个优势，例如0 dBm的发射功率会自动延长设备的使用寿命，以及219.78 ns左右的最小符号持续时间，可提供较高的比特率。为了比较结果，使用我们设计的准各向同性3D立方天线以及常规偶极天线以915 MHz进行了通信。我们已经发现，与最常用的传统偶极天线相比，使用3D立方天线为RFID传感器网络提供了多个优势，例如0 dBm的发射功率会自动延长设备的使用寿命，以及219.78 ns左右的最小符号持续时间，可提供较高的比特率。