%0 Journal Article
%T Novel call admission control algorithm for heterogenous wireless networks<br>一种新型的异构无线网络呼叫接纳控制算法研究
%A YU Xue-yong
%A ZHU Hong-bo
%A <br>余雪勇
%A 朱洪波
%J 计算机应用研究
%D 2012
%I 
%X CAC between heterogeneous wireless networks, such as an integrated CDMA2000 cellular network and a WLAN, play an important role to utilize the system resources in a more efficient way.This paper proposed that the preference to the WLAN was determined based on the traffic load in the WLAN and the velocity of the cellular mobile users.Therefore, it proposed a probabilistic CAC algorithm that allowed the WLAN to limit VHOs from the cellular network to reduce unnecessary VHO processing.It derived the expressions of new call blocking rate and DVHO blocking rate.Simulation results demonstrate that our CAC scheme reduces the unnecessary VHO processing while keeping the DVHO blocking rate within acceptable limits, maintaining reasonable through put and improves the overall performance of the system.
%K heterogeneous wireless networks
%K call admission control(CAC)
%K downward vertical handover(DVHO)
%K upward vertical handover(UVHO)<br>异构无线网络
%K 呼叫接纳控制
%K 向下垂直切换
%K 向上垂直切换
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=924F7D591EA7595EF9E5BDB28DD06BDE&yid=99E9153A83D4CB11&vid=771469D9D58C34FF&iid=B31275AF3241DB2D&sid=3AA09342F6AD7B4B&eid=F728FC2D3A6F8DAF&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=13