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Distributed adaptive channel allocation scheme with variable C/I threshold in cellular systems

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3 Author(s)
Hamabe, K. ; Mobile Commun. Technol. Development Co., Ltd., Chuou-ku, Tokyo, Japan ; Ueda, T. ; Otsu, T.

The proposed scheme varies the carrier-to-interference ratio (C/I) threshold in order to reduce the probability of interference and to increase traffic handling capacity. The scheme uses a channel segregation algorithm in which, in order to avoid interference, each base station independently determines channel priority from the results of interference signal strength measurements. A higher C/I threshold is set for higher priority channels to reduce the probability of interference, and a lower C/I threshold is set for lower priority channels to decrease blocking probability. Simulation results show that for the same interference ratio, the capacity of the variable C/I threshold scheme is 20% higher than that of a constant C/I threshold scheme

Published in:
Vehicular Technology Conference, 1993., 43rd IEEE

Date of Conference: 18-20 May 1993

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