Admission Control for Voice and Stream-Type Data Services in DS-CDMA Cellular System 


Vol. 30,  No. 9, pp. 737-748, Sep.  2005


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  Abstract

Two flexible admission control schemes for integrated voice and stream-type data services are proposed in DS-CDMA systems. Most previous studies on admission control have focused on integration of short, bursty packet-type data services and conventional voice services. However, stream-type data services with a relatively long service holding time are expected to be a considerable portion of data traffic in future generation cellular systems. Scheme I is a basic scheme that accommodates both voice and data services with full bandwidth. However, voice services are given priority over data services using the duration difference between the holding times for these services. Scheme II uses a different method to efficiently give priority to voice services over stream-type data services. An additional interference margin for voice services is provided by suppressing interference from stream-type data services according to voice access requests and a varying interference status. Performance of the two schemes is evaluated by developing Markovian models. Numerical results show that the voice capacity is highly sensitive to the service holding time of data services while the performance measures of data services are not highly sensitive. Scheme II is a significant improvement over Scheme I for accommodating voice and stream-type data services

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  Cite this article

[IEEE Style]

J. Chang, "Admission Control for Voice and Stream-Type Data Services in DS-CDMA Cellular System," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 9, pp. 737-748, 2005. DOI: .

[ACM Style]

Jin-weon Chang. 2005. Admission Control for Voice and Stream-Type Data Services in DS-CDMA Cellular System. The Journal of Korean Institute of Communications and Information Sciences, 30, 9, (2005), 737-748. DOI: .

[KICS Style]

Jin-weon Chang, "Admission Control for Voice and Stream-Type Data Services in DS-CDMA Cellular System," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 9, pp. 737-748, 9. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880