哈尔滨工程大学学报2024，Vol.45Issue(6)：1196-1201,6.DOI:10.1190/jheu.202207029
高速切换场景下的双门限判决算法研究
Research on the double-threshold decision algorithm in a high-speed handover scenario
摘要
Abstract
Traditional handover algorithms cannot cope with the increasing demand for communication quality owing to the increase in high-speed trains.Therefore,a position-triggered handover algorithm based on double-threshold decision is proposed to enhance the communication quality during handovers between different areas.By selecting double-threshold values,it can effectively reduce the impact of signal strength fluctuations.The smaller threshold value will be used when the fluctuation of the received signal strength is small;otherwise,the larger threshold value will be used.Real-time,continuous dual decisions are made for each measurement result.Simulation results reveal that compared with traditional handover algorithms,the double-threshold decision algorithm can make handovers oc-cur near the midpoint of the overlapping area of base stations,thereby reducing the handover drop and failure rate.Moreover,the dual decision reduces the average number of handovers,greatly improving the communication experi-ence.关键词
越区切换/LTE-R/列车通信系统/双门限判决/掉话率/切换失败率/性能仿真/动态检测Key words
handover/LTE-R/train communication system/double-threshold decision/call drop rate/handover failure rate/performance simulation/dynamic detection分类
信息技术与安全科学引用本文复制引用
孙志国,王程,王震铎,宁晓燕..高速切换场景下的双门限判决算法研究[J].哈尔滨工程大学学报,2024,45(6):1196-1201,6.基金项目
黑龙江省自然科学基金项目(LH2021F009). （LH2021F009）
