论文部分内容阅读
第三代移动通信技术支持不同服务质量(QoS)的多媒体业务,而呼叫接纳控制(CAC)技术是移动通信中的关键技术之一。本文提出一种动态预留呼叫接纳控制算法,该算法根据小区中各业务的话务量预测各业务所需信道数,从而为切换业务和新业务预留一定的信道。通过比较动态预留算法与新呼叫受限算法和中断优先级算法的性能,得出动态预留算法在降低语音和数据业务的呼叫阻塞率、中断率方面有明显的改善,是一种比较理想的呼叫接纳控制算法。
The third generation of mobile communication technology supports multimedia services of different quality of service (QoS), and Call Admission Control (CAC) technology is one of the key technologies in mobile communications. This paper proposes a dynamic reservation call admission control algorithm that predicts the number of channels required for each service based on the traffic volume of each service in the cell so as to reserve a certain channel for switching services and new services. By comparing the performance of dynamic reservation algorithm, new call restriction algorithm and interrupt priority algorithm, it is found that dynamic reservation algorithm has obvious improvement in reducing call blocking rate and interrupt rate of voice and data services Call admission control algorithm.