It is shown that, with service degradation (CAC-RD), the new call blocking probability and handoff failure probability are smaller than those without service degradation (CAC-R).

• 我们发现，使用服务降级(CAC-RD)之新连结阻塞机率与交递失败机率皆低于未使用服务降级(CAC-R)之新连结阻塞机率与交递失败机率。