• Title/Summary/Keyword: www traffic

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Performance Comparison of TCP and SCTP in Wired and Wireless Internet Environment (유무선 인터넷 환경에서 TCP와 SCTP의 성능 비교)

  • Sasikala, Sasikala;Seo, Tae-Jung;Lee, Yong-Jin
    • 대한공업교육학회지
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    • v.33 no.2
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    • pp.287-299
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    • 2008
  • HTTP is one of the most widely used protocols of the WWW. Currently it uses TCP as the transport layer protocol to provide reliability. The HTTP uses separate TCP connection for each file request and adds unnecessary head-of-line blocking overhead for the file retrieval. The web application is short sized and affected by the increased handover latency of TCP in wireless environment. SCTP has attractive features such as multi-streaming and multi-homing. SCTP's multi-streaming and multi-homing avoid head-of-line blocking problem of TCP and reduce handover latency of TCP in wired and wireless environment. Mean response time is the important measure in most web application. In this paper, we present the comparison of mean response time between HTTP over SCTP with that of HTTP over TCP in wired and wireless environments using NS-2 simulator. We measured mean response time for varying packet loss rate, bandwidth, RTT, and the number of web objects in wired environment and mean response time and packet loss rate for varying moving speed and region size in wireless environment. Our experimental result shows that SCTP reduces the mean response time of TCP based web traffic.