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Modeling of nondirected wireless infrared channels

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2 Author(s)
Carruthers, J.B. ; Dept. of Electr. & Comput. Eng., Boston Univ., MA, USA ; Kahn, J.M.

We show that realistic multipath infrared channels can be characterized well by only two parameters: optical path loss and RMS delay spread. Functional models for the impulse response, based on infrared reflection properties, are proposed and analyzed. Using the ceiling-bounce functional model, we develop a computationally efficient method to predict the path loss and multipath power requirement of diffuse links based on the locations of the transmitter and receiver within a room. Use of our model is a simple, yet accurate, alternative to the use of an ensemble of measured channel responses in evaluating the impact of multipath distortion

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Communications, IEEE Transactions on  (Volume:45 ,  Issue: 10 )