Results 261 to 270 of about 49,276 (290)

Optimized call admission control in wireless networks

Proceedings of the 2008 International Conference on Advanced Infocomm Technology - ICAIT '08, 2008
Traditional traffic rate regulation/degradation schemes in call admission control (CAC) seldom take rate degradation optimization into consideration, thus can not obtain the perfect grade of service (GoS) in session layer. In this paper, we propose an enhanced rate degradation CAC (ERDCAC) scheme in multimedia wireless networks, which is an extension ...
Shengdong Xie, Meng Wu
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Call admission control in hierarchical cell structure

Vehicular Technology Conference. IEEE 55th Vehicular Technology Conference. VTC Spring 2002 (Cat. No.02CH37367), 2003
In interference limited CDMA systems, call admission control plays a very important role because it directly controls the number of users. We introduce a interference-based CAC algorithm according to the characteristics of HCS. This algorithm adopts a global strategy in macro layer, while using a local strategy in the micro layer.
Ying Wang 0002, Jingmei Zhang, Weidong Wang 0001, Ping Zhang 0003   +3 more
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Call admission control: QoS issue for VoIP

2008 3rd International Conference on Communication Systems Software and Middleware and Workshops (COMSWARE '08), 2008
One of the vital key elements for providing quality of service (QoS) for VoIP is the call admission control (CAC) capabilities of the session management/call session control function or gateway. Even though the network may be designed to meet a given performance and restoration objective for the engineered traffic loads, the actual traffic may be ...
Mohammad Asadul Hoque, Farhana Afroz
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Call admission control for voice over IP

International Journal of Communication Systems, 2006
AbstractVoice over Internet protocol (VoIP) is a technology that enables the transmission of voice over an IP network. Recent years have witnessed heavy investment in this area in the commercial world. For VoIP to replace Public Switched Telephone Network (PSTN), it should provide voice quality comparable to circuit‐switched PSTN networks.
Hüseyin Uzunalioglu, David J. Houck, Yung-Terng Wang   +2 more
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Call admission control for video phone applications

The 11th IEEE International Conference on Networks, 2003. ICON2003., 2004
The increase in network capacities has led to the feasibility of real-time video applications such as video telephony. Such applications can use enormous amounts of bandwidth and must be carefully managed to avoid depleting network resources. One such bandwidth management approach utilizes router support to effectively control the video bandwidth usage
Paul Hatalsky, Hugh Smith, Matthew Carlton   +2 more
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A Cross-Layer Distributed Call Admission Control

2009 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, 2009
A wireless mesh network (WMN) is a collection of wireless network nodes that communicate among themselves. Unlike Wireless Local Area Networks, WMNs are self configuring systems, where each node can relay messages on behalf of others. This allows coverage of a much larger geographical area than if all nodes needed to be able to communicate directly ...
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Call Admission Control in Cloud Radio Access Networks

2014 International Conference on Future Internet of Things and Cloud, 2014
Over the past decade, wireless communications has experienced tremendous growth, and this growth is likely to multiply in the near future. The proliferation of mobile users and an ever increasing demand for multimedia services has resulted in greater capacity requirements.
Tshiamo Sigwele, Prashant Pillai, Yim-Fun Hu   +2 more
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Computational intelligence in call admission control

SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications, 2004
The paper discusses the call admission control problem from a computational point of view. The use of various mathematical approaches to solving the call admission control problem is described, namely the use of the Markov decision process, neural nets, fuzzy logic and genetic algorithms.
J. Goril, E. Dobos, A. Cizmar
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Distributed Intelligent Call Admission Control

2005 IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2006
In this paper, we propose QoS-based distributed intelligent call admission control (DICAC) for wideband multi-service CDMA system. Neural network is employed to predict next-step existing-call interference, fuzzy logic is used to estimate equivalent interference for a new call and make admission decision.
null Daipeng Zhang, null Gang Zhu
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Call admission control for reducing dropped calls in CDMA cellular systems

Computer Communications, 2002
Call admission control (CAC) algorithms that reduce dropped calls in code-division multiple access (CDMA) cellular systems are discussed in this paper. The capacity of a CDMA system is confined by the interference of users from both inside and outside of the target cell.
Yue Ma 0038, James J. Han, Kishor S. Trivedi   +2 more
openaire   +1 more source