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Wideband tapped delay line channel model at 3.5 GHz for broadband fixed wireless access system as function of subscriber antenna height in suburban environment

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5 Author(s)
Chia Leong Hong ; Lab. for Commun. Eng., Cambridge Univ., UK ; I. J. Wassell ; G. E. Athanasiadou ; S. Greaves
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This paper presents the results of measurements made to characterise the 3.5 GHz broadband fixed wireless access channel in a suburban environment, using a sectored base station antenna and a directional subscriber antenna. A tapped delay line channel impulse response model of the single-input single-output (SISO) channel is derived from the measurements. Previously, it has been reported that the delay spread decreases with an increase in the height of the subscriber unit (SU) antenna (C.L. Hong et al., April 203). In this paper, it is reported that the multipath tap gain also decreases with an increase in the SU antenna height. Furthermore, it is reported that a 3-tap channel model with tap spacing of 200 ns, and maximum tap delay at 400 ns can adequately describe the radio channel under investigation. The narrowband Ricean K-factor and wideband root mean squared delay spread are observed to correlate strongly with excess path loss.

Published in:

Information, Communications and Signal Processing, 2003 and Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on  (Volume:1 )

Date of Conference:

15-18 Dec. 2003