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The applicability of hybrid priority control for ATM network under the required QoS conditions

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2 Author(s)
Hiroki Doi ; Central Res. Inst. of Electr. Power Ind., Tokyo, Japan ; Serizawa, Y.

We previously proposed a priority control scheme in an ATM switch to guarantee the quality of service (QoS) of important power system communications and evaluated its implementation for a single ATM node. We are now interested in the QoS guarantees for total ATM network system which contains many ATM switch nodes, traffic paths from end to end. This paper shows the applicability of our proposed priority control model in the total ATM network system and the limit of network configuration parameters, for example number of channels and ATM switch nodes, under the required QoS conditions for both teleprotection signals and other traffic in the ATM network. Also, to keep the fairness among teleprotection signals in an ATM switch, and thus to reduce two-way differential delays, we improved our priority control for teleprotection signals by adding a delay time control. Under the required QoS conditions, we show that the ATM network with our improved priority control can transmit more channels of teleprotection signals and data traffic than networks using current priority control methods

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Power Engineering Society Summer Meeting, 1999. IEEE  (Volume:2 )

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