Dynamic random access code assignment for prioritized packet data transmission in WCDMA networks

TitleDynamic random access code assignment for prioritized packet data transmission in WCDMA networks
Publication TypeJournal Article
Year of Publication2003
AuthorsKim, D. I., E. Hossain, and V. K. Bhargava
JournalWireless Communications, IEEE Transactions on
Volume2
Pagination911 - 925
Date Publishedsep.
ISSN1536-1276
Keywords3G mobile communication, adaptive QoS, broadband networks, code division multiple access, computer simulations, delays, dynamic random access code assignment, finite population RA WCDMA systems, integrated delay-throughput performance model, link layer, measurement-based code assignment, multiuser channels, packet radio networks, physical layer, prioritized packet data transmission, prioritized RA data traffic, quality of service, random packet access, Rayleigh channels, Rayleigh fading, retransmission control-based prioritized packet access, spread spectrum communication, static channel allocation-based prioritized packet access, telecommunication traffic, third-generation wireless communication system, WCDMA networks, WCDMA-based differentiated services, wideband code-division multiple access, wireless Internet protocol networks
Abstract

We propose a measurement-based dynamic random access (RA) code assignment procedure for prioritized packet data transmission in wideband code-division multiple access (WCDMA) networks. This dynamic adaptation process is based on analytical performance results derived for random packet access under Rayleigh fading in WCDMA networks. The performance of the proposed measurement-based RA code assignment procedure with three different adaptation methods is evaluated by using computer simulations. The performance of the proposed scheme is compared with those of a retransmission control-based and static channel allocation-based prioritized packet access scheme. An integrated (physical layer and link layer) delay-throughput performance model is presented for finite population RA WCDMA systems. The proposed dynamic RA code assignment procedure can be used in an adaptive quality of service (QoS) framework for dynamically adjusting the QoS of prioritized RA data traffic in the evolving WCDMA-based differentiated services wireless Internet protocol networks.

URLhttp://dx.doi.org/10.1109/TWC.2003.816795
DOI10.1109/TWC.2003.816795

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