【摘要】 在蜂窝移动通信系统中，特别是在采用微小区时，越区切换作为信道指配的一部分，对系统的性能有着极大的影响，本文讨论了越区切换的几种方案，并通过计算机摸拟对不同方案的性能作了分析。更多还原

【Abstract】 In mobile cellular systems handover procedure is one part of channel assignment and hasthe agnificant impact on system performance,especially when relatively small cell sizes or microcellsare used. Some different stratapies for handover procedure are introduced and their performances arecompared and analyzed based on computer simulation.更多还原