Nomadic computing and CDMA

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 23 Nov 2002Publisher:IEEE Comput. SocJournal:Proceedings of the Sixth IEEE Computer Society Workshop on Future Trends of Distributed Computing Systems

Authors: David Cypher; Shukri Wakid;

doi: 10.1109/ftdcs.1997.644715

Nomadic computing and CDMA

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Abstract

This paper shows how reliable data services can be provided in an error prone wireless environment using CDMA and a link layer retransmission protocol. A CDMA encoder using Walsh codes for 1.85 to 1.99 GHz PCS applications is simulated under various error conditions with varying packet size to determine minimum acceptable QOS relative to error templates. The error templates and data rates of 16, 32, and 64 kb/s for mobile terminal units are then used with a link layer retransmission protocol to examine the overhead and the practical feasibility of this protocol suite. Small packet sizes of about 50 to 100 bytes appear to provide promise for commercial implementations. Such implementations are also shown to be able to support upper layer TCP/IP services when TCP timers are disabled.

Related Organizations

National Institute of Standards and Technology
United States
Information Technology Laboratory
United States

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