矿井内贴片天线对2.45 GHz NLOS离体信道的表征

Moulay El Azhari, M. Nedil, I. Mabrouk, L. Talbi
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引用次数: 4

摘要

在地下环境中,矿工的安全取决于所使用的通信系统的质量。目前,地下无线通信存在小尺度和大尺度衰落问题,影响了传输质量,限制了实现的比特率。本文在2.45 GHz频率下,对非瞄准线条件下的离体信道贴片天线组的性能进行了评估。为了确定NLOS配置的通道参数,并将其与先前公布的视线(LOS)结果进行比较,在金矿中进行了测量活动。因此,通道参数由测量的频率响应确定。离体信道的特性包括脉冲响应、路径损耗、RMS延迟扩展、相干带宽和信道容量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Characterization of a NLOS Off-Body Channel at 2.45 GHz Using Patch Antenna Inside a Mine
In underground environments, the safety of the miners depends on the quality of the used communication systems. Currently, wireless underground communications suffer from small-scale and large-scale fading, compromising the propagation quality and limiting the achieved bit rate. In this paper, the performance of a patch antenna set in off-body channels under None Line of Sight (NLOS) conditions is evaluatedat a frequency of 2.45 GHz. Measurement campaigns were performed in a gold mine in order to determine the channel parameters for NLOS configurations and compare them with previously published Line Of Sight (LOS) results. Hence, the channel parameters were determined from the measured frequency responses. The off-body channel is characterized in terms of the impulse response, path loss, RMS delay spread, coherence bandwidth, and channel capacity.
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