Transport Protocols in Wireless Networks

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https://ieeexplore.ieee.org/document/956278

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10.1109/ICCCN.2001.956278
 http://hdl.handle.net/11603/12667

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UMBC Computer Science and Electrical Engineering Department
UMBC Faculty Collection
UMBC Student Collection

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Date

2001-10-15

Type of Work

conference papers and proceedings preprints
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Citation of Original Publication

S. Avancha, V. Korolev, A. Joshi, T. Finin, Transport Protocols in Wireless Networks, IEEE International Conference on Computer Communications and Networks, 2001, DOI: 10.1109/ICCCN.2001.956278

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This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
© 2002 IEEE

Subjects

transport protocols
packet radio networks
cellular radio
digital radio
data communication
mobile computing
performance evaluation
performance loss
latency
bandwidth
data message
UMBC Ebiquity Research Group

Abstract

It is well-known that TCP performs poorly in a wireless environment. This paper presents an empirical performance analysis of TCP on Cellular Digital Packet Data (CDPD) and Bluetooth. This analysis brings out the weaknesses of TCP in realistic conditions. We also present CentaurusComm, a message based transport protocol designed to perform well in low bandwidth networks and resource poor devices. In particular, CentaurusComm is optimized to handle data exchanges consisting of short message sizes. The application used to perform all the experiments is typical of common applications that would use these protocols and network technologies. Typical mobile devices used in the experiments included Palm Pilots. We show that TCP performance on CDPD is very poor because of its low bandwidth and high latency. CentaurusComm outperforms TCP on CDPD.We show that on Bluetooth, which has higher bandwidth and lower latency than CDPD, both protocols perform comparably.