中文摘要：

对于语音新呼叫和切换呼叫，提出了一种有效的动态资源预留CAC算法，不仅结合保护信道法给予了切换呼叫更高的优先级，而且采用动态预留信道机制，根据服务等级（Gos）以期达到切换呼叫中断率与新呼叫阻塞率之间的折衷，同时采用Markov链对算法的性能进行了分析。

英文摘要：

In this paper, an efficient call admission control arithmetic based on dynamic resource reservation is proposed for new call and handoff call, which not only gives handoff call higher priority with guard channel scheme, but also helps to balance handoff call dropping rate and the new call blocking probability based on GoS through using dynamic channel reservation. A Markov chain is used to analyze the performance of the call admission control arithmetic.