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Distributed admission control for power-controlled cellular wireless systems

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3 Author(s)
Mingbo Xiao ; Sch. of Electr. & Comput. Eng., Pardue Univ., West Lafayette, IN, USA ; Shroff, N.B. ; Chong, E.K.P.

It is well known that power control can help to improve spectrum utilization in cellular wireless systems. However, many existing distributed power control algorithms do not work well without an effective connection admission control (CAC) mechanism, because they could diverge and result in dropping existing calls when an infeasible call is admitted. In this work, based on a system parameter defined as the discriminant, we propose two distributed CAC algorithms for a power-controlled system. Under these CAC schemes, an infeasible call is rejected early, and incurs only a small disturbance to existing calls, while a feasible call is admitted and the system converges to the Pareto optimal power assignment. Simulation results demonstrate the performance of our algorithms

Published in:

Networking, IEEE/ACM Transactions on  (Volume:9 ,  Issue: 6 )

Date of Publication:

Dec 2001

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