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移动通信设备对无线通信系统的要求是简化切换过程,缩短切换时间,减少切换次数,提高切换成功率。针对这些要求,给出了全球移动通信系统(GSM)路径损耗模型,并分析了信道切换对GSM通信网络的影响。提出了基于规则确定越区切换小区,相邻小区列表的简化和目标小区信道提前激活的混合优化算法。通过数据仿真实验,可以看出越区切换的时间延时得到有效降低,缩短了切换时间,证明了所提算法的有效性。
The requirement of the mobile communication device for the wireless communication system is to simplify the handover process, shorten the handover time, reduce the handover times, and improve the handover success rate. In response to these requirements, the Global System for Mobile Communication (GSM) path loss model is given, and the impact of channel switching on the GSM communication network is analyzed. A hybrid optimization algorithm is proposed to determine the handover cell, the list of adjacent cells and the channel activation in advance for the target cell based on the rules. Through the data simulation experiments, it can be seen that the time delay of handoff is reduced effectively and the handoff time is shortened, which proves the validity of the proposed algorithm.