Call admission control in multiple service DS-CDMA cellular networks

Evans, J.; Everitt, D.

doi:10.1109/vetec.1996.503442

Cited by 12 publications

(8 citation statements)

References 9 publications

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“…However, the idea of effective bandwidth was used in [5] to assign effective bandwidth to a given multimedia user according to its traffic profile. Admission requests are grouped into different classes and interference from each class is characterized.…”

Section: Connection Admission Control Investigations: Background and mentioning

confidence: 99%

“…Each network parameter has a different unit; this leads to the necessity of normalization. The final normalized equations for n users who tempt to access to the network at the same time are then presented by (5).…”

Section: Figure 2: Hcach Multiple Bandwidth Reservation Schemementioning

confidence: 99%

“…depend on call origination point and the anticipated direction) and the application type in use. Users of the same category requiring the same bandwidth will access to the network in an order of priority defined by the function given in (5). In the next section, the performance of this algorithm will be compared to those obtained with a handover-based CAC policy for which mobile nodes access to the networks according to their priority levels given by VHDF.…”

Section: Figure 2: Hcach Multiple Bandwidth Reservation Schemementioning

confidence: 99%

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

Bejaoui

2008

2008 IEEE/ACS International Conference on Computer Systems and Applications

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In this paper we propose a handover and class-based Call Admission Control algorithm for UMTS/WLAN heterogeneous networks. Its main objective is to limit the occurrence of hard WLAN-UMTS handovers to mobile nodes moving across cells and using real time applications. Our mechanism is based on the service class differentiation, the call origination point, and a vertical handoff decision function as well. It aims at maximizing the utilization of the resources available at the WLAN cells, and meeting the QoS requirement of higher priority users as much as possible while maintaining the minimum requirements of lower priority users, especially when the UMTS and the WLAN networks suffer from congestion. The new CAC policy achieves a good performance and capacity gain.

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Section: Connection Admission Control Investigations: Background and mentioning

confidence: 99%

Section: Figure 2: Hcach Multiple Bandwidth Reservation Schemementioning

confidence: 99%

Section: Figure 2: Hcach Multiple Bandwidth Reservation Schemementioning

confidence: 99%

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

Bejaoui

2008

2008 IEEE/ACS International Conference on Computer Systems and Applications

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“…The amount of effective bandwidth is usually found by solving the above inequality using two approaches. The first approach is the Gaussian approximation of the random variable, which is the interference level (I) in this case, while the second method uses the Chernoff bound to approximate the above inequality [24,44].…”

Section: Effective Bandwidth-based Cacmentioning

confidence: 99%

Call admission control in wireless networks: A comprehensive survey

Ahmed

2005

IEEE Commun. Surv. Tutorials

235

121

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Radio resource management (RRM) plays a major role in Quality of Service (QoS) provisioning for wireless communication systems. The performance of RRM techniques has a direct impact on each user's individual performance and on the overall network performance. Arriving (new and handoff) calls are granted/denied access to the network by the call admission scheme (CAC) based on predefined criteria, taking the network loading conditions into consideration. CAC in wireless networks has been receiving a great deal of attention during the last two decades due to the growing popularity of wireless communications and the central role that CAC plays in QoS provisioning in terms of the signal quality, call blocking and dropping probabilities, packet delay and loss rate, and transmission rate. In the first and second generation of wireless systems, CAC has been developed for a single service environment. In the third generation and beyond wireless systems, multimedia services such as voice, video, data, and audio are to be offered with various QoS profiles. Hence, more sophisticated CAC schemes are developed to cope with these changes. This article provides a comprehensive survey of CAC schemes in modern wireless networks.

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“…The most representative are presented in the following. The idea of effective bandwidth was used in [2] to assign effective bandwidth to a given user according to its traffic profile. Admission requests are grouped into different classes and interference from each class is characterized.…”

Section: Background and Related Workmentioning

confidence: 99%

Dynamic Interference and Timeout-based CAC Scheme For Multimedia Cellular Networks

Bejaoui

Tabbane²

2005 IEEE 61st Vehicular Technology Conference

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In this paper, an adaptive QoS oriented CAC function is proposed to meet the rapidly increasing demand for providing multimedia services with diversified quality requirements. It decides whether the connection request is to be admitted into the system based on the interference level and the waiting time before access. This CAC scheme, based on service class differentiation aims at maximizing the use of available radio resource and meeting the QoS requirement of higher priority users as much as possible while maintaining the minimum requirements of lower priority users, especially when the system suffers from congestion. The new CAC policy achieves a good performance and capacity gain.

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Call admission control in multiple service DS-CDMA cellular networks

Cited by 12 publications

References 9 publications

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

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

Call admission control in wireless networks: A comprehensive survey

Dynamic Interference and Timeout-based CAC Scheme For Multimedia Cellular Networks

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