GDL

Journal from gdlhub / 2017-08-14 13:34:20
Oleh : Salman Ali AlQahtani, King Saud University
Dibuat : 2017-01-14, dengan 1 file

Keyword : Adaptive resource allocation; Admission control; Delay aware; LTE-Advanced user categorization
Url : http://www.sciencedirect.com/science/article/pii/S1319157816300052
Sumber pengambilan dokumen : web

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 (DA–


UC-ARR)

”


, where the user priority is adjusted dynamically based on the current network condi-


tions 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) (Andrews et al., 2010; AlQahtani, 2014),


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.

Ó


2015 Production and hosting by Elsevier B.V. on behalf of King Saud University. This is an open access


article under the CC BY-NC-ND license (


http://creativecommons.org/licenses/by-nc-nd/4.0/


).

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