Optimization of Dynamic Priority Call Admission Control for WCDMA Uplink Transmission

International Journal of Electronics and Communication Engineering

© 2020 by SSRG - IJECE Journal

Volume 7 Issue 5

Year of Publication : 2020

Authors : Henry O. Osuagwu, Michael O. Ezea

10.14445/23488549/IJECE-V7I5P106

How to Cite?

Henry O. Osuagwu, Michael O. Ezea, "Optimization of Dynamic Priority Call Admission Control for WCDMA Uplink Transmission," SSRG International Journal of Electronics and Communication Engineering, vol. 7,  no. 5, pp. 33-40, 2020. Crossref, https://doi.org/10.14445/23488549/IJECE-V7I5P106

Abstract:

The well-defined improvements in terms of increased data rate, enhanced network capacity, and improved quality of service (QoS), with the introduction of new generation mobile devices like smartphones and tablets, have inspired the advancement of series of new services under certain constraint. With the remarkable growth in mobile subscribers, a suitable call admission control strategy that supports a diverse range of multimedia services with guaranteed QoS is essential in achieving efficient resource management. Quite a lot of call admission control schemes have been proposed in the literature pieces; among the schemes considered, the dynamic priority CAC scheme was shown to achieve a better balance between system utilization and QoS requirements. This paper compares the DP-CAC scheme and the optimized DP-CAC scheme for handoff calls dropping probability and the new calls blocking probability in the universal mobile telecommunication system. The results obtained from the extensive simulation show that the optimized DP-CAC achieves an improved new call success probability by an average percentage value of 17.9%. Moreover, at different verified scenarios with varied traffic arrival rates, the service and system utilization grade is significantly improved.

Keywords:

3G, CAC, QoS, WCDMA, DP-CAC.

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