论文标题
Terahertz Communications的反射渠道模型
Reflection Channel Model for Terahertz Communications
论文作者
论文摘要
Terahertz频率是提供高速短距离通信的未开发资源。结果，研究Terahertz波的传播特征并开发通道模型是很有趣的。在先前的工作中，我们使用了基于测量的方法来开发视线线（LOS）链接的准确通道模型。在本文中，我们通过开发信号遭受一个反射的频道模型（NLOS）链接来扩展这项工作。我们研究在金属板和一块木头上发生的反射。我们接收的幅度的模型包括发射器和接收器之间发展的常规波的影响。测量结果表明，经验数据与模型之间有着极好的一致性。此外，我们已经分析了320-480 GHz范围内反射信号的接收阶段。我们观察到预测阶段和实际阶段之间存在线性误差，并开发了一个模型以适应该差异。对于整个范围320-480 GHz和两种材料，我们开发的用于预测接收阶段的最终模型非常准确。
Terahertz frequencies are an untapped resource for providing high-speed short-range communications. As a result, it is of interest to study the propagation characteristics of terahertz waves and to develop channel models. In previous work we used a measurement-based approach to develop an accurate channel model for line of sight (LoS) links. In this paper we extend that work by developing channel models for non-line of sight (NLoS) links where the signal suffers one reflection. We study reflections that occur off a metal plate as well as a piece of wood. Our model for received magnitude includes the effects of standing waves that develop between the transmitter and receiver. Measurements show an excellent agreement between empirical data and the model. In addition, we have analyzed the received phase of the reflected signal at frequencies in the range 320- 480 GHz. We observed a linear error between the predicted and actual phase and developed a model to accommodate that discrepancy. The final model we have developed for predicting received phase is very accurate for the entire range 320 - 480 GHz and for both materials.
