Modified 2D Finite-Difference Time-Domain Based Tunnel Path Loss Prediction for Wireless Sensor Network Applications
نویسندگان
چکیده
منابع مشابه
Modified 2D Finite-Difference Time-Domain Based Tunnel Path Loss Prediction for Wireless Sensor Network Applications
To effectively deploy wireless sensor networks (WSNs) for monitoring and assessing the condition of tunnels, a Propagation Path Loss (PL) Model, which describes the power loss versus distance between the transmitter and the receiver for the tunnel environment is required. For most of the existing propagation measurements that have been conducted in tunnels, the antennas have been positioned alo...
متن کاملModified 2d Finite-difference Time-domain Technique for Tunnel Path Loss Prediction
To effectively deploy wireless sensor networks (WSNs) for monitoring and assessing the condition of tunnels, a Propagation Path Loss (PL) Model, which describes the power loss versus distance between the transmitter and the receiver in a specific environment, is required. For most of the existing propagation measurements conducted in tunnels, the antennas have been positioned along the central ...
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When Wireless Sensor Networks (WSNs) are deployed in a railway tunnel environment, the available deployment positions and equipment size are restricted by regulations from the infrastructure owners in order to maintain the loading gauge. As we have discovered in the Aldwych tunnel [1], antennas mounted near to the tunnel wall worsens the path loss (PL) performance at 868MHz and 2.45GHz. However...
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Ultra-short pulse is a promising technology for achieving ultra-high data rate transmission which is required to follow the increased demand of data transport over an optical communication system. Therefore, the propagation of such type of pulses and the effects that it may suffer during its transmission through an optical waveguide has received a great deal of attention in the recent years. We...
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In this paper, to model the path-loss characteristics in urban line-ofsight(LOS) propagation, we performed measurements in Goyang, Republic of Korea, at a frequency of 2.4GHz using the IEEE 802.15.4 standard. Although path-loss variance for any street existed, measurements yielded a typical pathloss of PL(dB) = L r ) ( log 10 10 , where is the path-loss coefficient, r is the street le...
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ژورنال
عنوان ژورنال: Journal of Communications
سال: 2009
ISSN: 1796-2021
DOI: 10.4304/jcm.4.4.214-223