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공공누리This item is licensed Korea Open Government License

Title
TCP Context Switching Scheme to Enhance Throughput by Adapting well to Vertical Handoff in Heterogeneous
Author(s)
석우진김상하
Publication Year
2008-05-01
Abstract
Vertical hando?? is a new type of hando?? that is
issued when a mobile node moves over heterogeneous wireless net-
works with each proving varying access bandwidth, transmission
latency, and coverage. A mobile node can achieve higher through-
put by accessing higher bandwidth providing wireless network.
However, TCP has to experience drastic changes of the band-
width and the latency due to the vertical hando?? which must
be recognized as a network congestion, and this degrades end-
to-end performance. In this paper, we propose TCP context
switching scheme, named Context-Switching TCP, that main-
tains TCP variables separately for di??erent types of wireless
networks. Through simulations, Context-Switching TCP shows
higher performance than TCP SACK for vertical hando??. Es-
pecially, it shows much higher performance gain when vertical
hando?? occurs frequently.
Keyword
TCP; congestion control; retransmission timeout; vertical handoff
Journal Title
IEICE transactions on communications
Citation Volume
E91-B
ISSN
0916-8516
Files in This Item:
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/13689
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