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http://dx.doi.org/10.3745/KIPSTC.2006.13C.3.345

TCP Performance Improvement Scheme in Network Mobility Environment  

Kim Myung-Sup (LG전자)
Choi Myung-Whan (서강대학교 컴퓨터학과)
Publication Information
The KIPS Transactions:PartC / v.13C, no.3, 2006 , pp. 345-352 More about this Journal
Abstract
In the integrated wired/wireless network which consists of the Internet and moving networks, multiple wireless links are used to connect a fixed host(FH) in the Internet to a mobile host(MH) in the moving network. For use in such an environment, we propose a scheme to overcome the TCP performance degradation due to the packet losses over the wireless links without losing the end-to-end TCP semantics. The proposed scheme in each mobile router(MR) allows to obtain the information regarding packet losses over the upstream wireless links based on the received packet sequence number and the ACK number. This information is delivered to the upstream router, which enables the upstream access router(AR) or MR to quickly retransmit the lost packets. The proposed scheme has the feature to quickly recover the packet losses incurred over the upstream wireless links and the performance of the proposed scheme is evaluated through simulation. It is shown that the significant performance gain can be obtained using the proposed scheme compared with the snoop mechanism which maintains end-to-end TCP semantics and does not require any additional features at the source and/or destination nodes.
Keywords
Network Mobility; TCP; Access Router; Mobile Router;
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Times Cited By KSCI : 1  (Citation Analysis)
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