Performance Evaluation of a Call Admission Control Protocol for Cellular Networks
نویسندگان
چکیده
Call admission protocols play a central role in determining both the performance of any network, and the revenue of the network. The call admission protocol must decide either to accept the call or reject it, Thus having an impact on both the quality of calls and the network revenues. The call admission protocol must deal with multiple classes of calls having different requirements, requesting different quality of service and with different priorities. In this paper, we propose a protocol for call admission control in cellular networks. Our protocol can effectively deal with multiple traffic classes each with different bandwidth requirements and different priorities. We also present simulation results for our protocol and compare it with existing protocols. Simulation results show that our protocol can give preferential treatment for high priority traffic without affecting the network utilization.
منابع مشابه
Adaptive call admission control and resource allocation in multi server wireless/cellular network
The ever increasing demand of the subscribers has put pressure on the capacity of wireless networks around the world. To utilize the scare resources, in the present paper we propose an optimal allocation scheme for an integrated wireless/cellular model with handoff priority and handoff guarantee services. The suggested algorithm optimally allocates the resources in each cell and dynamically adj...
متن کاملA Two-Threshold Guard Channel Scheme for Minimizing Blocking Probability in Communication Networks
In this paper, we consider the call admission problem in cellular network with two classes of voice users. In the first part of paper, we introduce a two-threshold guard channel policy and study its limiting behavior under the stationary traffic. Then we give an algorithm for finding the optimal number of guard channels. In the second part of this paper, we give an algorithm, which minimizes th...
متن کاملA Call Admission Control Protocol for Multimedia Cellular Networks
The performance of any cellular wireless network, as well as its revenue (number of customers using the network, and their degree of satisfaction) is determined to a great extent by its call admission control (CAC) protocol. As its name implies, the CAC determine if a new call request is granted, or rejected. In this paper, we propose a call admission control protocol for cellular multimedia wi...
متن کاملA TESLA-based mutual authentication protocol for GSM networks
The widespread use of wireless cellular networks has made security an ever increasing concern. GSM is the most popular wireless cellular standard, but security is an issue. The most critical weakness in the GSM protocol is the use of one-way entity authentication, i.e., only the mobile station is authenticated by the network. This creates many security problems including vulnerability against m...
متن کاملA Hidden Node Aware Network Allocation Vector Management System for Multi-hop Wireless Ad hoc Networks
Many performance evaluations for IEEE 802.11distributed coordination function (DCF) have been previouslyreported in the literature. Some of them have clearly indicatedthat 802.11 MAC protocol has poor performance in multi-hopwireless ad hoc networks due to exposed and hidden nodeproblems. Although RTS/CTS transmission scheme mitigatesthese phenomena, it has not been successful in thoroughlyomit...
متن کامل