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In next generation cellular networks, Quality of Service (QoS) delivery will need more network resources per user, leading to network congestion problems. Call Admission Control (CAC) is the process in charge of managing calls according to the availability of network resources. In order to overcome the problem of network congestion, the CAC should tackle pricing policies, improving by the same way...
The mobile cellular systems are expected to support multiple services with guaranteed Quality of Service(QoS). But, the ability of wireless systems to accommodate expected growth of traffic load and broadband services is limited by available radio frequency spectrum. Call Admission Control (CAC) is one of the resource management functions, which regulates network access to ensure QoS provisioning...
The mobile cellular systems are expected to support multiple services with guaranteed Quality of Service(QoS). But, the ability of wireless systems to accommodate expected growth of traffic load and broadband services is limited by available radio frequency spectrum. Call Admission Control (CAC) is one of the resource management functions, which regulates network access to ensure QoS provisioning...
One of the most challenging issues for next generation cellular networks is the provision of Quality of Service (QoS) guarantees to the high number of multimedia applications with different Service Level Agreement (SLA). To improve the utilization of network resources and facilitate management and control, source types are organized into different traffic classes. Each traffic class requires different...
This paper introduces a fuzzy logic traffic priority-based call admission control scheme for code division multiple access (CDMA) cellular mobile systems. In the new method, if the traffic load is low and the available network resource is enough, a call of any priority is admitted into the system. Otherwise, only the calls of higher priority are admitted, and the others of lower priority are blocked.
Traffic policing mechanism schemes over high speed networks become significant whenever congestion arises at the entrance of buffer prior to the network. If congestion is not suitably controlled, the networks may not be able to cope their quality-of-service (QoS) requirements. Another approach must drop incoming frames from which buffer is not available and has to rely on the end-to-end protocols...
This paper proposes a call admission control (CAC) scheme for heterogeneous wireless overlay networks (WONs) that combine the benefits of the three commonly used techniques- guard channel, buffer management and priority scheduling with fuzzy logic application. The simulation results show that the scheme is extremely efficient offering a high degree of quality of service (QoS).
The mobile cellular systems are expected to support multiple services with guaranteed quality of service (QoS).But, the ability of wireless systems to accommodate expected growth of traffic load and broadband services is limited by available radio frequency spectrum. Call admission control (CAC) is one of the resource management functions, which regulates network access to ensure QoS provisioning...
Admission Control (AC) avoids network congestion by determining whether a quantified request for resources can be approved without interfering the resource allocation of already accepted traffic flows. For time sensitive networked multimedia applications conventional AC schemes often prove to be unnecessarily strict. The crisp binary admission decision and worst case assumptions on traffic behavior...
Traffic control algorithms can optimize network resources in deploying GMPLS networks. Connection admission control enables the network to admit connections that they can cater the QoS to. Future direction suggests direct GMPLS IP to Optical Wavelength Division Multiplexing (WDM) connections could provide faster provisioning of services, eliminating the electronic bottleneck currently imposed by the...
Congestion control mechanism such as random early detect (RED) allows more efficient usage of network resources. RED uses static thresholds (high and low) in combating congestion. However, as network becomes more dynamic with the introduction of multimedia and real time application, this ldquostaticrdquo approach becomes inefficient. This paper proposed a dynamic RED mechanism, namely, fuzzy active...
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