Extensive DBA-CAC mechanism for maximizing efficiency in 3GPP: LTE networks

Priya, S. Gayathri; Franklin, Janet

doi:10.1109/racss.2012.6212673

Cited by 7 publications

(5 citation statements)

References 5 publications

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“…The BR-BD schemes proposed in [35][36][37][38][39][40][41] are designed to enhance QoS requirements of high priority calls and resource utilization. These schemes reserve resources for calls of high priority and degrade low priority calls in order to admit more calls when resources are insufficient.…”

Section: Comparative Analysis Of Cac Schemesmentioning

confidence: 99%

Untitled

2019

IJCSES

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The growing number of mobile users with diverse applications such as VoIP, video, internet surfing etc. has made LTE networks to adopt a CAC strategy in order to ensure the quality of service (QoS) requirements of these applications. Over the years, several CAC schemes have been proposed to either accept or reject service requests. This paper presents a survey of these schemes under four different classes. The classes are: Bandwidth Reservation (BR), Bandwidth Degradation (BD), BR and BD and Non-BR and Non-BD (NBR-NBD). In each of the classification, the operation procedure, strengths and weaknesses of each scheme has been discussed. Furthermore, a comparative analysis of these schemes is also presented. The analysis provides insight into the challenges in the design of CAC by highlighting open research issues for future directions.

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Section: Comparative Analysis Of Cac Schemesmentioning

confidence: 99%

Untitled

2019

IJCSES

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“…In [33] an admission control algorithm based on data rate, SNR and delay requirement of a new connection was proposed for LTE networks. Degradation-based admission control in LTE networks was proposed in [34], wherein a new connection is admitted by degrading existing connections without compromising the QoS of existing connections. In [35] an admission control algorithm in LTE was proposed that prioritizes existing connections.…”

Section: Related Work In Admission Controlmentioning

confidence: 99%

Novel, graded, priority-oriented admission control in mobile networks

Algur¹,

Kumar²

2016

Turk J Elec Eng & Comp Sci

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Abstract:Call admission control plays a crucial role in providing quality of service to the different services in mobile broadband networks (WiMAX, LTE). A new connection is admitted only when the network can support the QoS needs of the connection without degrading the QoS for existing connections. An efficient call admission control algorithm ensures higher throughput and fewer delays for the admitted connections. In this paper a graded priority-based call admission control algorithm is proposed for LTE and WiMAX networks. The number of permissible connections shall be segregated into two classes. The new connection shall be graded, prioritized, and admitted based on the device requesting the connection. Simulation results show that graded priority-based admission control algorithm improves the connection admission rate from 3% to as high as 30% for select users. This results in higher throughput for priority users.

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“…When the network resources are limited, the RAC can admit high priority connections using either of the two schemes: a) preemption scheme [1] ,or b) the degradation schemes [2,3]. Preemption scheme in [1] allows high priority bearer to remove the low priority bearers to obtain sufficient resources.…”

Section: Introductionmentioning

confidence: 99%

“…It results in unfairness with the flows of low priority bearers. The degradation scheme in [2,3] instantly degrades the rate allocated to low priority connections to their respective GBR even if only a single PRB is required. Thus, additional resources are added to the complete sharing based available resource pool and the RAC is free to allocate them to the new connection of any service type.…”

Section: Introductionmentioning

confidence: 99%

“…It results in unfair bandwidth allocation among different priority classes. Moreover, the degradation schemes in [2,3] degrades connections at the same ARP, one by one until sufficient resources are obtained. In this way all the connections with same ARP may not be degraded and cause unfair bandwidth share to the flows at the same priority level.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

LTE-Advanced fair intelligent admission control LTE-FIAC

Furqan

Hoang

Collings

2014

Proceeding of IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks 2014

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Radio Admission Control (RAC) is a key function of the Radio Resource Management (RRM) at layer 3 of an eNodeB; however, the 3GPP standard does not specify the RAC and is left as an eNodeB vendor specific. Most admission control schemes proposed to date do not ensure differentiation among the users at different priority levels. Also, they do not provide fairness among the users with the same priority. This paper proposes a novel RAC scheme for Long Term Evolution (LTE-Advanced) networks based on the combined idea of complete sharing and virtual partitioning. It introduces a step wise degradation scheme, to prioritize the high priority traffic in state of resource limitations. A detailed and comprehensive simulation is performed in Opnet to show the efficiency of the proposed RAC scheme. The simulation results demonstrate that the proposed RAC scheme minimizes the call blocking probability and adheres extremely well to the bandwidth constraints of different traffic types.

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Extensive DBA-CAC mechanism for maximizing efficiency in 3GPP: LTE networks

Cited by 7 publications

References 5 publications

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Novel, graded, priority-oriented admission control in mobile networks

LTE-Advanced fair intelligent admission control LTE-FIAC

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