说明：  因此，本文在分析IEEE 802.16标准和WiMAX网络架构的基础上，研究基于 WiMAX技术宽带无线网络下的切换策略，以提高WiMAX系统的性能。
(the first stage. Based on the analysis of IEEE 802.16 standard and AMAX network architecture, the handover mechanism for broadband wireless network based on AMAX technology is studied in this thesis, for the purpose of improving the performance of WiMAX systems )