Improving Handover Performance in Wireless Mobile Networks
In this paper, we propose an enhanced packet scheduling scheme to favour UEs that experienced handover (HO) in wireless mobile networks. The main idea of the proposed scheme is not only prioritized the HO connections at the CAC level but also prioritized the HO connections at the scheduler level. At the CAC level, a guard code scheme favours HO calls over new calls. At the scheduler level, a Packet Scheduler based-HandOver Class (PS-HOC) scheme makes use of the elapsed time of HO connections to classify the HO requests into prioritized HO and non-prioritized HO calls. Further, PS-HOC sorts the connections based on their delay sensitivity and their channel quality. The performance of the proposed scheme is compared with delay driven scheduler (DDS) scheme in terms of average packet delay, average queue size and average packet dropping rate. The simulation results show the effectiveness of our proposed scheme.
Keywords: Handover, CAC, Packet Scheduling, QoS, WCDMA.
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ABOUT THE AUTHORS
Saied M. Abd El-Atty
Department of Electronics and Electrical Communications,Faculty of Electronic Engineering, Menoufia University,Menouf, 32952, Egypt
Konstantinos Lizos
Head of IT Department,Embassy of Greece,Embassy of Greece,Nobels gate 45, 0244, Oslo, Norway
Saied M. Abd El-Atty
Department of Electronics and Electrical Communications,Faculty of Electronic Engineering, Menoufia University,Menouf, 32952, Egypt
Konstantinos Lizos
Head of IT Department,Embassy of Greece,Embassy of Greece,Nobels gate 45, 0244, Oslo, Norway
