Browsing by Author "Baray, Mehmet"
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Item Open Access Design and implementation of a tool for teaching programming(1989) Göktepe, Mesut; Özgüç, Bülent; Baray, MehmetRecently, computers have been widely used in almost all fields of education. Our approach to computer aided education is mainly concerned with programming. Here, it is intended to teach the Pascal language for problem solving in a visual manner. In this project, we have used an object oriented approach for the implementation of an educational tool for programming. The paper mainly discusses the topics related to computer aided education, user interface, object oriented programming and ongoing research related to the project.Item Open Access Dynamic congestion control in interconnected computer networks(IEEE, 1988-10) Ulusoy, Özgür; Baray, MehmetThe authors evaluate a window-based congestion control mechanism in an internetwork environment. They also propose and study two dynamic-window congestion-control algorithms. These algorithms provide further control to the window mechanism by adjusting the window size in accordance with the availability of the network resources at the destination. A comparison of dynamic algorithms with fixed window control is provided in terms of throughput and delay performance. It is shown that dynamic algorithms have considerable performance advantages over fixed-window control.Item Open Access The role of location of traffic control in internetwork gateways(IEEE, 1990-03) Ulusoy, Özgür; Baray, MehmetSummary form only given. An evaluation of window-based gateway-to-gateway-level congestion control in an interconnected network environment is reported. Two dynamic control algorithms proposed by the author are intended to operate the system below the critical internetwork load that gives rise to congestion at gateways and connected networks. In one of the algorithms, source gateways regulate the traffic flow, whereas in the other, destination gateways provide the control. The algorithms provide further control to static window protocol by adjusting the window size in accordance with the availability of network resources at the destination. A comparison of the two algorithms has shown that controlling the internetwork messages at the destination gateway produces better performance results than control at the source gateway.