New Algorithm for Fractional Channel Reservation in Limited Fractional Gurad Channel Policy
In the current and even the coming generation of wireless networks, cellular system is still considered as the major method of telecommunication infrastructure. One of the major challenges in multi-services wireless cellular networks is the design of effective call admission control algorithm. The probability of dropping and blocking of calls is the significant performance metrics for quality of service in wireless network. In this study, a new fractional guard channel policy is proposed in a cell based on the current estimation of dropping probability of handoff calls. This policy introduces variable threshold for fractional guard channels. The new algorithm is proposed to find optimal fractional channel reservation which reduces data blocking probability. It shows improvements in comparison with guard channel policy by reducing the new call blocking probability, increasing the carried traffic. At the end, the two- dimensional traffic model is simulated and the related results are reviewed.
Call admission control scheme Cellular network Fractional guard channel policy
Leila Mortazavi Far, Zahra Firouzi
Department of Computer Engineering Sharif University of Technology Kish Island, Iran
国际会议
北京
英文
1-5
2010-06-25（万方平台首次上网日期，不代表论文的发表时间）