Some experimental investigation of the effect of railway tunnels on mobile communications in Western India

被引：0
|
作者：
M. V. S. N. Prasad
P. K. Dalela
机构：
[1] National Physical Laboratory,
[2] C-DOT,undefined
来源：
annals of telecommunications - annales des télécommunications | 2009年 / 64卷
关键词：
Mobile communications; Path loss measurements; Tunnels;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Establishing of mobile communications in guided structures like railway tunnels, coal mines, etc., is gaining increasing importance due to the passage of high speed and high density of trains in tunnels and for monitoring of information on safety of workers and day-to-day operations in various mines. The present study reports investigation of mobile communication experiments in ultra high frequency band in railway tunnels of western India conducted in a moving train both in uplink and downlink directions. The observed signal fluctuations are discussed in terms of tunnel characteristics and different modes of propagation in tunnels and compared with model deduced values.
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页码：247 / 257
页数：10
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