论文标题
实用简化的室内多壁路径模型
Practical Simplified Indoor Multiwall Path-Loss Model
论文作者
论文摘要
在过去的几十年中，已经尝试建立合适的渠道预测模型来优化无线电传输系统。在室内无线电系统应用中，预测由于信号阻塞而导致的路径损失尤其重要。本文提出了一个用于室内环境的多壁路径传播模型，在工业，科学和医学（ISM）无线电频段中以2.45 GHz的传输频率运行。在模型中考虑了沿无线电传播路径遍历的壁数的影响。为了提出该模型，讨论了先前关于众所周知的室内路径损失模型的作品。然后，测量传播路径中的中间壁产生的路径损失，并修改了代表理论路径模型中代表损失因子的术语。提出了在2.45 GHz时获得的路径损耗因子的分析结果。提出的路径模型通过对室内环境的可接受假设简化了损耗因子项，并准确预测了路径损失因子。
Over the past few decades, attempts had been made to build a suitable channel prediction model to optimize radio transmission systems. It is particularly essential to predict the path loss due to the blockage of the signal, in indoor radio system applications. This paper proposed a multiwall path-loss propagation model for an indoor environment, operating at a transmission frequency of 2.45 GHz in the industrial, scientific, and medical (ISM) radio band. The effects of the number of the walls to be traversed along the radio propagation path are considered in the model. To propose the model, the previous works on well-known indoor path loss models are discussed. Then, the path loss produced by the intervening walls in the propagation path is measured, and the terms representing the loss factors in the theoretical pathloss model are modified. The analyzed results of the path loss factors acquired at 2.45 GHz are presented. The proposed path-loss model simplifies the loss factor term with an admissible assumption of the indoor environment and predicts the path-loss factor accurately.
