underground_communication

underground_communication -...

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Unformatted text preview: www.powerpointpresentationon.blogspot.com CONTENTS Introduction Wi-com Through Soil Using EM Waves 2-path Rayleigh Fading Channel Model Wi-com Through Soil Using Magnetic Induction Practical Approach Paging Systems Critical Requirements INTRODUCTION Wireless Underground Communication Networks (WUCNs) constitute one of the promising application areas of the recently developed wireless networking techniques. The WUCNs consist of wireless devices that operate below the ground surface. These devices are either (i) Buried completely under dense soil or (ii) Placed within a bounded open underground space such as underground mines and road/subway tunnels. Wi-com through soil using EM waves EM waves encounter much higher attenuation in soil compared to air. This severely hampers the communication quality. Moreover, the ground surface causes reflection as well as refraction, which requires a comprehensive investigation of the channel model. Therefore, advanced models are necessary to accurately and completely characterize the underground channel and to lay out the foundations for efficient underground communication. 2-path Rayleigh Fading Channel...
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underground_communication -...

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