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Application of neuro-fuzzy technique to the bandwidth reservation for sectored cellular communications

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2 Author(s)
Chenn-Jung Huang ; Inst. of Learning Technol., Nat. Hualien Teachers Coll., Taiwan ; Wei-Kuang Lai

Many mechanisms based on bandwidth reservation have been proposed in the literature to decrease connection blocking probability and connection dropping probability in cellular communications. The handoff events occur at a much higher rate in sectored cellular networks than in traditional cellular systems. An efficient bandwidth reservation mechanism for the neighboring cells is therefore critical in the process of handoff during the connection of multimedia calls to avoid the unwillingly forced termination and waste of limited bandwidth in the sectored cellular communications, particularly when the handoff traffic is heavy. A self-adaptive bandwidth reservation scheme which employs a neural fuzzy bandwidth-reserving estimator, is proposed, and the simulation results show that our scheme can achieve superior performance than traditional fixed bandwidth-reserving scheme in sectored cellular networks when performance metrics are measured in terms of the new call blocking probability and the forced termination probability.

Published in:

Evolutionary Computation, 2003. CEC '03. The 2003 Congress on  (Volume:2 )

Date of Conference:

8-12 Dec. 2003

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