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Prediction of indoor wireless coverage by leaky coaxial cable using ray tracing

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1 Author(s)
Morgan, S.P. ; Bell Labs., Lucent Technol., Morristown, NJ, USA

A coaxial cable having a slotted or perforated outer conductor can be used as a base-station antenna for indoor wireless systems. This paper explores the use of ray tracing software to predict the radio coverage that can be achieved by a leaky coax in a building with a given wall geometry. For either coupled-mode or radiating-mode cable, a heuristic model that represents the cable as a sequence of finite segments, each of which radiates diffusely with a radiation pattern given by Lambert's cosine law, is found to work well. However, the coupling-loss parameter, which defines the effective power radiated by each element, appears to depend significantly on whether the cable is laid in a rich scattering environment or a barren one

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Vehicular Technology, IEEE Transactions on  (Volume:48 ,  Issue: 6 )