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.
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Woojin SEOK, Sang-Ha KIM, "TCP Context Switching Scheme to Enhance Throughput by Adapting Well to Vertical Handoff in Heterogeneous Wireless Networks" in IEICE TRANSACTIONS on Communications,
vol. E91-B, no. 5, pp. 1423-1435, May 2008, doi: 10.1093/ietcom/e91-b.5.1423.
Abstract: 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.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e91-b.5.1423/_p
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@ARTICLE{e91-b_5_1423,
author={Woojin SEOK, Sang-Ha KIM, },
journal={IEICE TRANSACTIONS on Communications},
title={TCP Context Switching Scheme to Enhance Throughput by Adapting Well to Vertical Handoff in Heterogeneous Wireless Networks},
year={2008},
volume={E91-B},
number={5},
pages={1423-1435},
abstract={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.},
keywords={},
doi={10.1093/ietcom/e91-b.5.1423},
ISSN={1745-1345},
month={May},}
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TY - JOUR
TI - TCP Context Switching Scheme to Enhance Throughput by Adapting Well to Vertical Handoff in Heterogeneous Wireless Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 1423
EP - 1435
AU - Woojin SEOK
AU - Sang-Ha KIM
PY - 2008
DO - 10.1093/ietcom/e91-b.5.1423
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E91-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2008
AB - 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.
ER -