Computational Science and Its Applications — ICCSA 2003: by Hyun Cheol Kim, Seongjin Ahn, Jin Wook Chung (auth.), Vipin

By Hyun Cheol Kim, Seongjin Ahn, Jin Wook Chung (auth.), Vipin Kumar, Marina L. Gavrilova, Chih Jeng Kenneth Tan, Pierre L’Ecuyer (eds.)

The three-volume set, LNCS 2667, LNCS 2668, and LNCS 2669, constitutes the refereed court cases of the foreign convention on Computational technological know-how and Its purposes, ICCSA 2003, held in Montreal, Canada, in could 2003.

The 3 volumes current greater than three hundred papers and span the complete variety of computational technology from foundational matters in laptop technological know-how and arithmetic to complex functions in nearly all sciences using computational thoughts. The lawsuits provide a distinct account of contemporary ends up in computational science.

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Extra resources for Computational Science and Its Applications — ICCSA 2003: International Conference Montreal, Canada, May 18–21, 2003 Proceedings, Part II

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S. C. T. 2 Mathematical Modeling For a queuing modeling about the multiple priority calls with three types of class-calls,we assume the following thing. 1) The multiple class-calls λi arriving at queue have each independent Poisson probability distribution, the waiting times of calls waiting at queue have an exponential distribution having service rate µq . in addition, the channel holding time of each call follows the exponential distribution having service rate µ. 2)The priority of call λi arriving is λ1 > λ2 > λ3 .

Therefore, it was known that the multiple class-calls can satisfy the QOS of channel usage by dynamically changing the threshold value, the traffic mixing ratio of priority and the size of queue, and can be flexibly applied to the multimedia mobile communication system. References 1. Ierq, ”Analysis of Queuing strategies For Handoff and Originating Calls in, Macro/Micro/Pico Cellular Systems”, IEEE pro. 0-7803-2955-4. 1995. 2. H. Cobham, ”Priorities Assignment in Waiting Line Problem”, Operation Res.

It is therefore increasingly important that mobile networks support various applications without disruption. This paper proposes a new recovery algorithm in the WDM based Universal Mobile Telecommunications System (UMTS) networks that guarantee dynamic utilization of backup paths, considering traffic characteristics such as priority and Shared Risk Link Group (SRLG). This paper also has developed an analytical model and performed performance analysis for the proposed algorithms in terms of two performance factors: restoration time and blocking probability.

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