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    A simulation study on HTTP performance analysis in terms of its interaction with TCP
    (1998) Gürkan, Deniz
    In this thesis, we have performed a. simulation study on performance analysis of HTTP (HyperTrext Transfer Protocol) in terms of its interaction with TCP ('Transmission Control Protocol). The latency through internet connections can he reduced by making modicifations on the application and transport layer protocols. For the simulations, we have built models of HTTP/l.O and HTTP/1.1 using a simulation package Network Simula.- tor. Pour different connection mechanisms have been realized. They are serial, parallel, pipelined and segment-filled connections. Serial and parallel connections are simulated for comparison purposes. These are connection mechanisms of HTTP/I.O. The modification proposed in in HTTP /1.1 is pipelined connection. VVe have obtained segment-filled connection by modifying pipelined case. We have examined the performance of each modification and compared their simulation results with HTTP/I.O connections. For the traffic conditions used in the simulations, segment-filled and pipelined connections performed better in terms of effective web page retrieval rate. In addition, a,s a modification to the TCP, we have increased the initial window size and compared vvith the one segment initial window size case. Changing initial window size' from I l.o 2 and .‘1 has increased the performance of each connection case individually.