Presentation 2010-07-23
A Study of Retransmission Control of Transport Protocol Supported by Network Nodes in Wireless Networks with Long Delay
Yoshihiro IKEDA, Hiroki NISHIYAMA, Nei KATO,
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Abstract(in English) With the development of satellite network technology, satellite networks have become widely utilized for many communication applications, thus, the reliability of the Transmission Control Protocol (TCP) has become ever more essential. However, it is commonly known that the performance of TCP will significantly decreases in wireless networks that have long transmission delay, such as satellite networks. Even though some improvements in TCP have already addressed these problems in previous works, we focus on the Variable-structure congestion Control Protocol (VCP) which is designed for High Bandwidth Delay Product (BDP) networks. VCP allows the sender to control the congestion window efficiently by using Explicit Congestion Notification (ECN) which conveys congestion information that originates from the routers. However, the performance of VCP degrades in wireless networks because of the inefficient retransmission control. In this paper, we propose two methods that improve retransmission control. The first method is based on the use of ECN ,while the other utilizes Round Trip Time (RTT), to estimate network condition. Finally, we also evaluate the effectiveness of the proposed schemes by the use of computer simulation.
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Keyword(in English) Satellite networks / Wireless / Retransmission Control / Long delay / TCP / VCP / AQM / ECN
Paper # SAT2010-28
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Committee SAT
Conference Date 2010/7/15(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study of Retransmission Control of Transport Protocol Supported by Network Nodes in Wireless Networks with Long Delay
Sub Title (in English)
Keyword(1) Satellite networks
Keyword(2) Wireless
Keyword(3) Retransmission Control
Keyword(4) Long delay
Keyword(5) TCP
Keyword(6) VCP
Keyword(7) AQM
Keyword(8) ECN
1st Author's Name Yoshihiro IKEDA
1st Author's Affiliation Graduate School of Information Sciences, Tohoku University()
2nd Author's Name Hiroki NISHIYAMA
2nd Author's Affiliation Graduate School of Information Sciences, Tohoku University
3rd Author's Name Nei KATO
3rd Author's Affiliation Graduate School of Information Sciences, Tohoku University
Date 2010-07-23
Paper # SAT2010-28
Volume (vol) vol.110
Number (no) 136
Page pp.pp.-
#Pages 6
Date of Issue