Delay Aware and Users Categorizing-Based Call Admission Control for Multi-Services LTE-A Networks

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• 作者：Salman A. AlQahtani
• 刊名：Arabian Journal for Science and Engineering
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：41
• 期：9
• 页码：3631-3644
• 全文大小：1,297 KB
• 刊物类别：Engineering
• 刊物主题：Engineering, general
  Mathematics
  Science, general
  
• 出版者：Springer Berlin / Heidelberg
• 卷排序：41

文摘

In this paper, we introduce the user’s privileges and traffic maximum delay tolerance as additional dimensions in the call admission control processes to efficiently control the utilization of LTE-A network resources. Based on this idea, we propose an efficient call admission control scheme named “Delay Aware and User Categorizing-based CAC with Adaptive Resource Reservation”, where the user priority is adjusted dynamically based on the current network conditions and the users’ categorizations and traffic delay tolerances, to increase the network’s resource utilization and at the same time to maximize the operators’ revenue. In this proposed scheme, the users are classified into Golden users and Silver users, and the type of service per user is classified as real-time (RT) and non-real-time (NRT) services. We compare the performance of the proposed scheme with the corresponding results of previous schemes, referred to as the adaptive resource reservation-based Call Admission Control (ARR-CAC), where user categorization and delay were not taken into consideration in the call admission control process. Simulation results indicate the superiority of the proposed scheme because it is able to achieve a better balance between system utilization, users’ privileges provided by network operators and QoS provisioning compared to the ARR-CAC scheme.KeywordsAdaptive resource allocationAdmission controlDelayawareLTE-advanced user categorization