Browsing by Author "Fu, CH"

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A comparison of congestion control and time slot algorithms in Internet transmission performance
(2002-02-01)
Yang, C
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Fu, CH
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資訊管理與財務金融系註：原資管所+財金所
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Department of Information Management and Finance
The characteristics of TCP and UDP lead to different network transmission behaviours. TCP is responsive to network congestion whereas UDP is not. This paper proposes two mechanisms that operate at the source node to regulate TCP and UDP flows and provide a differential service for them. One is the congestion-control mechanism, which uses congestion signal detected by TCP flows to regulate the flows at the source node. Another is the time-slot mechanism, which assigns different number of time slots to flows to control their flow transmission. Based on the priority of each flow, different bandwidth proportions are allocated for each flow and differential services are provided. Simulation results show some insights of these two mechanisms. Moreover, we summarize the factors that may impact the performance of these two mechanisms. Copyright (C) 2001 John Wiley Sons, Ltd.
Research into two source-based control algorithms for Internet traffic flows
(2001-10-01)
Yang, CY
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Fu, CH
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資訊管理與財務金融系註：原資管所+財金所
;
Department of Information Management and Finance
TCP and UDP are the major applications over the Internet, the characteristics of them lead to different network transmission behaviors. Two source-based mechanisms are proposed in this paper to regulate TCP and UDP flows. One is the-congestion control mechanism, which uses TCP flows' congestion signal to regulate the flows at the source node. The other is the time slot mechanism, which is a time-sharing application to control their flow transmission, Based on the priorities of flows, different bandwidth proportions are allocated and differential services are provided for flows. Several scenarios are simulated to observe the transmission operations of these two mechanisms. Simulation results show some insights into two mechanisms. Moreover, the several simulation parameters that may impact the performance of these two mechanisms are summarized. (C) 2001 Elsevier Science B,V, All rights reserved.