Nomadic computing and CDMA

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 deter...

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Main Authors: Cypher, D., Wakid, S.
Format: Conference Proceeding
Language:English
Subjects:
Access protocols
AWGN
Base stations
Mobile computing
Multiaccess communication
NIST
Personal communication networks
Quality of service
TCPIP
Wireless application protocol
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Wakid, S.
description 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.
doi_str_mv 10.1109/FTDCS.1997.644715
format conference_proceeding
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Access protocols
AWGN
Base stations
Mobile computing
Multiaccess communication
NIST
Personal communication networks
Quality of service
TCPIP
Wireless application protocol
title Nomadic computing and CDMA
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