TCP-STAR: TCP Congestion Control Method for Satellite Internet

URI http://harp.lib.hiroshima-u.ac.jp/hiroshima-cu/metadata/6479
File
Title
TCP-STAR: TCP Congestion Control Method for Satellite Internet
Author
氏名 OBATA Hiroyasu
ヨミ オバタ ヒロヤス
別名 小畑 博靖
氏名 ISHIDA Kenji
ヨミ イシダ ケンジ
別名 石田 賢治
氏名 TAKEUCHI Satoru
ヨミ タケウチ サトル
別名
氏名 HANASAKI Shouta
ヨミ ハナサキ ショウタ
別名
Subject
TCP congestion control method
satellite Internet
throughput
Abstract

Satellite Internet is one of the most important networks for emergency communications because of its tolerant of disasters such as earthquake. Therefore, satellite Internet has received considerable attention over recent years. However, most standard implementations of TCP congestion control method perform poorly in satellite Internet due to its high bit error rate and long propagation delay. This paper proposes a new TCP congestion control method called TCP-STAR to improve the throughput over satellite Internet. TCP-STAR has three new mechanisms, namely Congestion Window Setting (CWS) based on available bandwidth, Lift Window Control (LWC), and Acknowledgment Error Notification (AEN). CWS can resist the reduction of the transmission rate when data losses are caused by bit error. LWC is able to increase the congestion window quickly based on the estimated available bandwidth. AEN can avoid the reduction of the throughput by mis-retransmission of data. The mis-retransmission is caused by ack losses or delay. Simulations show that TCP-STAR can obtain the best throughput comparing with other TCP variants (TCP-J and TCP-WestwoodBR). Furthermore, we found that the fairness of TCP-STAR is a little lower than that of TCP-WestwoodBR. However, the fairness of TCP-STAR is equal to TCP-J.

Description Peer Reviewed
Journal Title
IEICE TRANSACTIONS on Communications
Volume
E89-B
Issue
6
Spage
1766
Epage
1773
Published Date
2006-06-01
Publisher
電子情報通信学会(IEICE)
ISSN
0916-8516
Language
eng
NIIType
Journal Article
Text Version
出版社版
Rights
copyright©2006 IEICE
Relation URL
Old URI
Set
hiroshima-cu