Modeling TCP Throughput over Wired/Wireless Heterogeneous Networks for Receiver-Based ACK Splitting Mechanism(Internet)
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概要
- 論文の詳細を見る
The performance of TCP data transmission deteriorates significantly when a TCP connection traverses a heterogeneous network consisting of wired and wireless links. This is mainly because of packet losses caused by the high bit error rate of wireless links. We proposed receiver-based ACK splitting mechanism in [1]. It is a new mechanism to improve the performance of TCP over wired and wireless heterogeneous networks. Our mechanism employs a receiver-based approach, which does not need modifications to be made to the sender TCP or the base station. It uses the ACK-splitting method for increasing the congestion window size quickly in order to restrain the throughput degradation caused by packet losses due to the high bit error rate of wireless links. In this paper, we develop a mathematical analysis method to derive the throughput of a TCP connection, with/without our mechanism, which traverses wired and wireless heterogeneous networks. By using the analysis results, we evaluate the effectiveness of our mechanism in the network where both of packet losses due to network congestion and those caused by the high bit error rate of wireless links take place. Through An evaluation of the proposed method shows that it can give a good estimation of TCP throughput under the mixture networks of wired/wireless links. We also find that the larger the bandwidth of the wireless link is, the more effective our mechanism becomes, therefore, the mechanism's usability will increase in the future as wireless networks become faster.
- 社団法人電子情報通信学会の論文
- 2007-07-01
著者
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NAKATA Masashi
Graduate School of Nano Science and Technology, Waseda University
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HASEGAWA Go
Graduate School of Infomation Science and Technology, Osaka University
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Hasegawa Go
Osaka Univ. Toyonaka‐shi Jpn
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Hasegawa Go
Graduate School Of Infomation Science And Technology Osaka University
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Nakata Masashi
Graduate School Of Infomation Science And Technology Osaka University
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NAKANO Hirotaka
Graduate School of Infomation Science and Technology, Osaka University
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Nakano Hirotaka
Osaka Univ. Toyonaka‐shi Jpn
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