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Modeling the statistical time and angle of arrival characteristics of an indoor multipath channel

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4 Author(s)
Spencer, Q.H. ; Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA ; Jeffs, B.D. ; Jensen, M.A. ; Swindlehurst, A.L.

Most previously proposed statistical models for the indoor multipath channel include only time of arrival characteristics. However, in order to use statistical models in simulating or analyzing the performance of systems employing spatial diversity combining, information about angle of arrival statistics is also required. Ideally, it would be desirable to characterize the full spare-time nature of the channel. In this paper, a system is described that was used to collect simultaneous time and angle of arrival data at 7 GHz. Data processing methods are outlined, and results obtained from data taken in two different buildings are presented. Based on the results, a model is proposed that employs the clustered "double Poisson" time-of-arrival model proposed by Saleh and Valenzuela (1987). The observed angular distribution is also clustered with uniformly distributed clusters and arrivals within clusters that have a Laplacian distribution.

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Selected Areas in Communications, IEEE Journal on  (Volume:18 ,  Issue: 3 )