Performance Evaluation of Call Admission Control Schemes in 3GPP Long Term Evolution Networks

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  •   Abdulhakeem Abdulazeez

  •   Maniru Malami Umar

  •   Solomon Orduen Yese

  •   Aminu Mohammed

Abstract

Radio resource management (RRM) techniques are employed for resource utilization in wireless broadband networks. One of the major RRM techniques that are aimed at controlling the admission and rejection of new or handoff calls/connections in a network is known as Call Admission Control (CAC). CAC accepts or rejects a connection request based on a certain pre-determined criterion(s). Performance Evaluation of some existing CAC schemes was presented in this paper. The schemes evaluated are; Adaptive Call Admission Control Scheme with Bandwidth reservation termed as (ACAC), QoS-Aware Call Admission Control Scheme termed as (QA-CAC) and Enhanced Adaptive Call Admission Control Scheme with bandwidth reservation termed (EA-CAC). Vienna LTE system level simulator was used for the simulation experiments conducted. After several experiments, the results show that the QA-CAC and EA-CAC schemes perform better in terms of increasing the throughput of real-time (RT) traffic while all the three schemes almost have the same performance in terms of admitting the non-real-time (NRT) traffic.


Keywords: CAC, LTE, Throughput, QoS, and QoE

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How to Cite
[1]
Abdulazeez, A., Malami Umar, M. , Yese, S.O. and Mohammed, A. 2022. Performance Evaluation of Call Admission Control Schemes in 3GPP Long Term Evolution Networks. European Journal of Electrical Engineering and Computer Science. 6, 4 (Jul. 2022), 1–8. DOI:https://doi.org/10.24018/ejece.2022.6.4.444.