Handover and class-based Call Admission Control policy for 4G-heterogeneous mobile networks

Bejaoui, Tarek

doi:10.1109/aiccsa.2008.4493560

Cited by 16 publications

(6 citation statements)

References 14 publications

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“…In literature, some previous works have studied the integration of different wireless networks from CAC standpoint. For instance, in [8], a CAC is proposed for the integration of UMTS/WLAN wireless networks that has with main objective to limit hard handover occurrences between WLAN-UMTS cells. CAC for UMTS and WiMax integration is studied in [9].…”

Section: A Related Work and Contributionsmentioning

confidence: 99%

Design of optimal Call Admission Control for WiMax/WiFi integration

Carvalho

Coutinho

Costa

2009

2009 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)

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IEEE 802.16 standard or WiMax network is one of the new alternatives for broadband wireless access. Among its promising applications is the creation of a wireless backhaul support for WiFi traffic. In this context, it is mandatory to design a Call Admission Control in the WiMax Base Station for resource allocation for the integration of both network technologies. In this paper, we investigate this subject by proposing an optimal call admission control and resource allocation for WiMax and WiFi integration. The optimization problem is formulated as a Semi-Markov Decision Process. By presenting a comprehensive analysis, we discuss different design trade-offs alternatives.

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Section: A Related Work and Contributionsmentioning

confidence: 99%

Design of optimal Call Admission Control for WiMax/WiFi integration

Carvalho

Coutinho

Costa

2009

2009 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)

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“…For each class of service, the interference parameter taken into consideration when the access to the network is controlled varies along simulation and is maintained under defined static threshold defined in [13]. The maximum number of users admitted in the UMTS cell depends on the energy per bit to noise density threshold computed as in [13].…”

Section: A Simulation Platformmentioning

confidence: 99%

“…The maximum number of users admitted in the UMTS cell depends on the energy per bit to noise density threshold computed as in [13].…”

Section: A Simulation Platformmentioning

confidence: 99%

Hybrid Call Admission Control Scheme for Next Generation Mobile Networks

Bejaoui

2008

2008 International Wireless Communications and Mobile Computing Conference

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This work presents a new adaptive QoS oriented CAC scheme, proposed to limit the occurrence of hard IEEE 802.11 WLAN-UMTS handovers to mobiles using real time applications. This scheme is hybrid, based on the service class differentiation, the location in the heterogeneous infrastructure and a vertical handoff decision function as well. The results show that our policy achieves significant performance gains. It maximizes the utilization of the resources available at the WLAN cells, and meets as much as possible the QoS requirement of higher priority users.

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“…It is qualified as a hard handoff since it may cause a disruption in the packet flow. Since more priority should be given to necessary handoffs than desirable handoffs [6]. Literature [5] did not consider priority of necessary handoff calls in its channel preemption scheme.…”

Section: Introductionmentioning

confidence: 99%

An Upward Priority Channel Preemption Scheme for Vertical Handoff in Cellular/WLAN Interworking

Cai

2011

2011 7th International Conference on Wireless Communications, Networking and Mobile Computing

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This paper proposes a novel upward priority channel Preemption Scheme (UPPS) for vertical handoff in a cellular/WLAN interworking networks. In order to improve the upward vertical handoff (UVH) dropping probabilities of voice and data calls while guaranteeing system performance and utilization of the cellular bandwidth, the proposed scheme defines priorities for newly cellular calls and UVH calls and designs newly bandwidth allocation scheme and priority preemption rule to modify the channel Preemption Model for Vertical handoff (PMV) scheme. Simulation results show that the proposed scheme enormously improves performance of the voice UVH call dropping probability and the data UVH call dropping probability at the cost of some increasing newly cellular call blocking probability that may tolerate uncritical while keeping high cellular bandwidth utilization compared with PMV. The proposed scheme has much significance in providing good QoS guarantees in cellular /WLAN interworking networks.

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Handover and class-based Call Admission Control policy for 4G-heterogeneous mobile networks

Cited by 16 publications

References 14 publications

Design of optimal Call Admission Control for WiMax/WiFi integration

Design of optimal Call Admission Control for WiMax/WiFi integration

Hybrid Call Admission Control Scheme for Next Generation Mobile Networks

An Upward Priority Channel Preemption Scheme for Vertical Handoff in Cellular/WLAN Interworking

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