TCP-LTE/5G Cross-layer performance analysis tool for high mobility data networking and a case study on high-speed railway  

作　　者：Ruihan Li Yueyang Pan Xiangtian Ma Haotian Xu Chenren Xu 

机构地区：[1]School of Computer Science,Peking University,Beijing 100871,China

出　　处：《High-Speed Railway》2023年第2期141-146,共6页高速铁路（英文）

基　　金：supported by National Key Research and Development Plan,China(Grant No.2020YFB1710900);National Natural Science Foundation of China(Grant No.62022005 and 62172008).

摘　　要：Nowadays,high mobility scenarios have become increasingly common.The widespread adoption of High-speed Rail(HSR)in China exemplifies this trend,while more promising use cases,such as vehicle-to-everything,continue to emerge.However,the Internet access provided in high mobility environments stllstruggles to achieve seamless connectivity.The next generation of wireless cellular technology 5 G further poses more requirements on the endto-end evolution to fully utilize its ultra-high band-width,while existing network diagnostic tools focus on above-IP layers or below-IP layers only.We then propose HiMoDiag,which enables flexible online analysis of the network performance in a cross-layer manner,i.e.,from the top(application layer)to the bottom(physical layer).We believe HiMoDiag could greatly simplify the process of pinpointing the deficiencies of the Internet access delivery on HSR,lead to more timely optimization and ultimately help to improve the network performance.

关 键 词：LTE 5G Cellular networks High mobility TCP Network diagnostics High-speed railway 

分 类 号：U285[交通运输工程—交通信息工程及控制]