Dynamic random access code assignment for prioritized packet data transmission in WCDMA networks
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Date
2003-09-30T12:45:29Z
Authors
Kim, DI
Hossain, E
Bhargava, VK
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Abstract
In this paper, 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.
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Keywords
measurement-based resource allocation, quality of service (QoS), wideband code-division multiple access, (WCDMA), wireless Internet protocol (IP), PERFORMANCE EVALUATION, MULTIPLE-ACCESS, CDMA
Citation
1536-1276; IEEE TRANS WIREL COMMUN, SEP 2003, vol. 2, no. 5, p.911 to 925.