Measured Performance of Data Transmission Over Cellula r Telephone Networks Timo Alanko, Markku Kojo, Heimo Laamanen, Mika Liljeberg, Marko Moilanen, an d Kimmo Raatikainen Department of Computer Science, University of Helsink i Report C-1994-5 3 November 199 4 20 pages Abstract . Recent developments in mobile communication and personal computer technology have laid a new foundation for mobile computing . Performance of the data communication system as seen by an application program is a fundamental factor when communicatio n infrastructure at the application layer is designed. This paper provides results of performanc e measurements of data transmission over two different cellular telephone networks, a digital GSM-network and an analogue NMT-network . Since our emphasis is on performance as see n by application programs, we use the standard TCP/IP protocols in the measurements . The performance is measured using three basic operations : establishment of a wireless dial-u p connection, exchange of request-reply messages, and bulk data transfer . The external conditions under which the measurements were carried out present a normal office environmen t when the field strength of the cellular link is good or fairly good . Key Words : performance measurements, wireless dial-up connections, cellular telephones
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