setting the priority order

These three mechanisms can be used by setting the priority order, which can be dealed with the current initial neighbor graphs and effectly streamlined the current neighbor graph's numbers to reduce the handover's time delay superiorly.4. According to the characteristics in the subway or light rail model about the wireless AP's scheme is linear, the STA's mobile trajectory is assurance, the adjacent AP along the track line with the same frequency wireless network structure, it is applied to the MSO algorithm in the subway or light rail project's cross-zone handovers, which is pointed out the algorithm can be reduced delays very well and achieved the mobile communication's application needs between the train and ground.5. Finally, the simulation experiment is made by using the OPNET's network simulation tools for various algorithms in the dissertation and the subway or light rail project's application, which is pointed out the new algorithm proposed in this dissertation compared with the existing algorithms is better to reduce handover delays.