scholarly journals Admission Control Methods in IMS Networks

2016 ◽  
Vol 5 (3) ◽  
pp. 142
Author(s):  
Erik Chromy ◽  
Matej Kavacky ◽  
Lubomir Dresto
Keyword(s):  
Quality Of Service ◽  
Admission Control ◽  
Control Method ◽  
Point Of View ◽  
Control Algorithms ◽  
Control Methods

In this paper we present admission control methods for IMS network. The task of RACS block is to accept or reject new connection into the network. The main goal of the admission control method is to ensure the Quality of Service not only for new connection but also for already accepted connections. We discuss and compare three admission control algorithms in the paper from the qualitative parameters point of view.

scholarly journals Analyse of Measurement Based Admission Control Methods in IMS Networks and Simulation Principle

2018 ◽  
Vol 210 ◽  
pp. 03003
Author(s):  
Erik Chromy ◽  
Tomas Simoncik ◽  
Marek Holiencin ◽  
Ivan Baronak
Keyword(s):  
Admission Control ◽  
Control Method ◽  
Time Window ◽  
Ip Multimedia Subsystem ◽  
Control Methods ◽  
Loss Ratio ◽  
Traffic Measurement ◽  
Qos Parameters ◽  
Loss Parameter

This paper deals with the quality of service in IP Multimedia Subsystem networks. The evaluation of Quality o Service (QoS) is done through admission control methods. We analyse various methods, which are based on the traffic measurement. The approach that can be applied in finding the suitable admission control method while considering selected QoS parameters is described. Different important QoS parameters can be defined, however we decided to focus on the loss parameter. In our simulations we have used Simple Sum method. Based on the simulation results, we have used new algorithm. The main difference is that it uses the mechanism of time window for achieving more accurate traffic estimate. Algorithm Measured Sum with implementation of time window T has better ability to predict the traffic fluctuation. Compared to the Simple Sum algorithm it achieves lower link utilisation, but also lower level of loss ratio.

scholarly journals Admission Control Methods in IP Networks

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Erik Chromy ◽  
Marcel Jadron ◽  
Tomas Behul
Keyword(s):  
Quality Of Service ◽  
Admission Control ◽  
Ip Networks ◽  
Control Methods ◽  
Research Institutions ◽  
Close Attention ◽  
The Core ◽  
Topology Model ◽  
Large Groups

Telecommunications operators and research institutions pay close attention to the issue of quality of service. The paper deals with methods of admission control in IP networks, which is only one of the subsets of quality of service. There are two large groups of AC methods: parameter-based admission control and measurement-based admission control. The core of the paper is simulation of AC methods and algorithms for topology model in MATLAB. Our simulations are mainly focused on required bandwidth and loss rates. At the end of the paper there are compared results of simulations.

scholarly journals A Hybrid Approach to Call Admission Control in 5G Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Mohammed Al-Maitah ◽  
Olena O. Semenova ◽  
Andriy O. Semenov ◽  
Pavel I. Kulakov ◽  
Volodymyr Yu. Kucheruk
Keyword(s):  
Artificial Intelligence ◽  
Quality Of Service ◽  
Admission Control ◽  
Mobile Communications ◽  
Communication Systems ◽  
Call Admission Control ◽  
Hybrid Approach ◽  
5G Networks ◽  
Call Admission

Artificial intelligence is employed for solving complex scientific, technical, and practical problems. Such artificial intelligence techniques as neural networks, fuzzy systems, and genetic and evolutionary algorithms are widely used for communication systems management, optimization, and prediction. Artificial intelligence approach provides optimized results in a challenging task of call admission control, handover, routing, and traffic prediction in cellular networks. 5G mobile communications are designed as heterogeneous networks, whose important requirement is accommodating great numbers of users and the quality of service satisfaction. Call admission control plays a significant role in providing the desired quality of service. An effective call admission control algorithm is needed for optimizing the cellular network system. Many call admission control schemes have been proposed. The paper proposes a methodology for developing a genetic neurofuzzy controller for call admission in 5G networks. Performance of the proposed admission control is evaluated through computer simulation.

scholarly journals Conceptual analysis of the notion of quality of services

2009 ◽  
Vol 50 ◽  
Author(s):  
Jérémy Besson ◽  
Albertas Čaplinskas
Keyword(s):  
Quality Of Service ◽  
Conceptual Analysis ◽  
Object Oriented ◽  
Point Of View ◽  
Quality Of Services ◽  
Software Systems ◽  
Service Oriented

In the last decade the component technologies have evolved from object-oriented to serviceoriented ones. Services are seen as utilities based on a pay-for-use model. This model requires providing and guaranteeinga certain Quality of Service (QoS). However, QoS and even a service itself can be defined and understood in many different ways. It is by far not obvious which of these approaches and in what extent they should be used when developing service-oriented software systems. This paper analyzes the notion of QoS namely from this point of view.

scholarly journals The Control Process Effectiveness: Organization Versus Customer

2013 ◽  
Vol 11 (8) ◽  
pp. 345
Author(s):  
Ofer Barkai
Keyword(s):  
Quality Of Service ◽  
Customer Service ◽  
Internal Control ◽  
Service Providers ◽  
Control Process ◽  
Point Of View ◽  
Large Organization ◽  
Control Processes ◽  
Telecommunication Company

This research project, which was implemented in an organization whose primary function is providing service (Telecommunication company), studies the scope of the correlation between the quality of service from the customers point of view (customer survey) and the organization (Telecommunication company systems). The research is important both for economic and scientific reasons. It involves many organizational control units which require significant monetary investments. From a scientific point of view, the research is important because it can shed light on the asymmetrical point of view existing between customers and organizations. Organizations that are service providers place high importance on the quality of service and their image as perceived by their customers. Quality of service is measured through internal control processes and from there is passed on to the staff who are directly involved in customer service. In this study, we focus on a large organization which implements control processes and then provides service to customers. Therefore, the activities of this organization are judged first and foremost on the basis of the service quality provided. The existing internal control processes of the organization, which measure the standard of service provided on the basis of organizational benchmarks are separate from those that measure customer satisfaction. In this project, we analyze the correlation between the outlook of the customer and the results of internal control processes.

Evaluating QoS in a Multi-Access Wireless Network

2010 ◽  
pp. 1-30
Author(s):  
Ronan Skehill ◽  
William Kent ◽  
Dorel Picovici ◽  
Michael Barry ◽  
Sean McGrath
Keyword(s):  
Quality Of Service ◽  
Admission Control ◽  
Control Strategies ◽  
End User ◽  
Ieee 802.11B ◽  
Test Platform ◽  
Tightly Coupled ◽  
Multi Access ◽  
The Impact

This chapter introduces quality of service in multi-access wireless networks. Specifically it demonstrates how QoS is implemented in IEEE 802.11 and UMTS. The chapter explains how these complementary technologies, when coupled together, provide a network that is greater than its individual parts. Combining these networks brings new network management challenges. To this end, the impact of joint admission control strategies on quality of service is evaluated. The evaluation is performed on an advanced test platform that replicates an integrated Release 4 UMTS network and standard IEEE 802.11b network. The results show that when UMTS and WLAN are tightly coupled, the end user enjoys a higher level of quality of service.

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