A novel admission control for fairly admitting wideband and narrowband calls

A6sIrm-l -With the call handoff occurring more and more frequently in wireless networks, an effective call admission control is increasingly urgent for optimum utility of valuable bandwidth. The traditional guard channel scheme (GC) and its numerous variants cannot adapt to changes in t r n l c pattern due to their static nature. Recently, the dynamic call admission mechanism using stochastic control are found to he more stable and precise. But, it is still hard to get an effective dynamic call admission mechanism for multi-services. The main challenges with multiple types of trallic are that each has its own requirements of bandwidth, QoS guarantee and handoff rate. I n addition, the computational complexity is another challenge. At present, most of the relative studies cope with this problem by setting up multiple dimensions stochastic model with high computational complexity 131, 1131. In this paper, we found it is enough to use the proposed single dimension stochastic model to compute the key parameters, such as call dropping probability, admission probability. So the computational complexity is greatly decreased. Numerical results of simulation show that the proposed scheme named OMDCA steadily satisfies the hard constraints on call dropping probability for multi-services while maintaining a very high channel throughput.

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A novel admission control for fairly admitting wideband and narrowband calls

Cited by 15 publications

References 4 publications

Dynamic Traffic Grooming for Survivable Mobile Networks – Fairness Control

Dynamic Traffic Grooming for Survivable Mobile Networks – Fairness Control

A probabilistic approach for fair-efficient call admission control in wireless multiservice networks

New stochastic control scheme for multiservices call admission in mobile wireless networks

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