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On TCP performance enhancing proxies in a wireless environment

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3 Author(s)
Ivanovich, M. ; Telstra Corp., Melbourne, VIC ; Bickerdike, P. ; Li, J.C.

TCP performance enhancement in wireless access networks is an important ongoing area of research. It is known that the hostile nature of the wireless channel and the mobile nature of wireless users interact adversely with standard TCP congestion control mechanisms [1], causing a drastic reduction in throughput. This article surveys a selection of different approaches to managing TCP performance over wireless links, and presents the results of simulation and field trial results of a novel TCP performance enhancing proxy over diverse cellular radio access technologies based on the GSM, cdma2000, and UMTS standards. The proposed TRL TCP performance enhancing proxy has the advantages of being completely transparent to both TCP endpoints and tunable to different access technologies, and frequently achieves the maximum throughput available from any of the studied radio access technologies.

Published in:

Communications Magazine, IEEE  (Volume:46 ,  Issue: 9 )