TCP Context Switching Scheme to Enhance Throughput by Adapting Well to Vertical Handoff in Heterogeneous Wireless Networks
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概要
- 論文の詳細を見る
Vertical handoff is a new type of handoff that is triggered when a mobile node moves over heterogeneous wireless networks with each proving different access bandwidth, transmission latency, and coverage. A mobile node can achieve higher throughput by accessing a higher bandwidth providing wireless network. However, TCP has to experience drastic changes of the bandwidth and the latency due to the vertical handoff which must be recognized as a network congestion, and this degrades end-to-end performance. In this paper, we propose a TCP context switching scheme, named Context-Switching TCP, that maintains TCP variables separately for different types of wireless networks. Through simulations, Context-Switching TCP shows higher performance than TCP SACK for vertical handoff. Especially, it shows much higher performance gain when vertical handoff occurs frequently.
- （社）電子情報通信学会の論文
- 2008-05-01
著者
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KIM Sang-Ha
Department of Computer Science and Engineering, Chunanam National University
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Kim Sang-ha
Department Of Computer Engineering At Chungnam National University
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SEOK Woojin
Korea Institute of Science and Technology Information, Supercomputing Center
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Seok Woojin
Korea Institute Of Science And Technology Information Supercomputing Center
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