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Evaluation of the performance of the mobile packet communications network

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6 Author(s)
T. Suzuki ; Core Network Dev. Dept., NTT DoCoMo R&D Center, Kanagawa, Japan ; A. Miura ; K. Yoshihara ; R. Matsumura
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As the i-mode service grows in popularity, the i-mode traffic carried by the Personal Digital Cellular-Packet (PDC-P) mobile communication network is increasing rapidly. To meet this growing demand, the switching systems currently in place are being either increased in capacity or replaced by more powerful ones. To plan this effectively, it is necessary to make an accurate evaluation of the i-mode processing capacity. We have developed a new method of evaluating processing capacity using a formula for estimating the CPU occupancy by regression analysis, which takes account of the characteristics specific to the PDC-P network. The formula is to be applied to the commercial environment. It is important to maintain the accuracy of the evaluation above a certain level even when the traffic pattern changes greatly as a result of the future introduction of diverse services. This paper discusses the method of evaluating the processing capacity of switching systems used in the PDC-Packet mobile network. The discussion includes how to deal with differences between the CPU occupancy calculated using this technique and the actual CPU occupancy measured on a commercial switching system.

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High Performance Switching and Routing, 2002. Merging Optical and IP Technologies. Workshop on

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