Mobile communication standards have been developed into a new era of B5G and 6G.In recent years,low earth orbit(LEO)satellites and space Internet have become hot topics.The integrated satellite and terrestrial systems...Mobile communication standards have been developed into a new era of B5G and 6G.In recent years,low earth orbit(LEO)satellites and space Internet have become hot topics.The integrated satellite and terrestrial systems have been widely discussed by industries and academics,and even are expected to be applied in those huge constellations in construction.This paper points out the trends of two stages towards system integration of the terrestrial mobile communication and the satellite communications:to be compatible with 5G,and to be integrated within 6G.Based on analysis of the challenges of both stages,key technologies are thereafter analyzed in detail,covering both air interface currently discussed in 3GPP for B5G and also novel network architecture and related transmission technologies toward future 6G.展开更多
Joint radar and communication(JRC)technology has become important for civil and military applications for decades.This paper introduces the concepts,characteristics and advantages of JRC technology,presenting the typi...Joint radar and communication(JRC)technology has become important for civil and military applications for decades.This paper introduces the concepts,characteristics and advantages of JRC technology,presenting the typical applications that have benefited from JRC technology currently and in the future.This paper explores the state-of-the-art of JRC in the levels of coexistence,cooperation,co-design and collaboration.Compared to previous surveys,this paper reviews the entire trends that drive the development of radar sensing and wireless communication using JRC.Specifically,we explore an open research issue on radar and communication operating with mutual benefits based on collaboration,which represents the fourth stage of JRC evolution.This paper provides useful perspectives for future researches of JRC technology.展开更多
集成了大型机移植到微机上的图形学算法模块,并增加GUI(graphic user interface)界面。使用Windows进程间通信技术来实现GUI界面和控制台程序间数据通信。利用管道技术并结合某曲面造型系统开发要求,编制了一个进程间通信的中介模块,给...集成了大型机移植到微机上的图形学算法模块,并增加GUI(graphic user interface)界面。使用Windows进程间通信技术来实现GUI界面和控制台程序间数据通信。利用管道技术并结合某曲面造型系统开发要求,编制了一个进程间通信的中介模块,给出该模块的代码和执行流程,在系统运行时通过直接调用中介模块实现GUI菜单命令驱动算法执行的数据交互。中介模块经适当修改后可以解决类似场合的数据通信问题。展开更多
基金This work was supported in part by the National Science Fund for Distinguished Young Scholars in China under grant 61425012the National Science Foundation Project in China under grant 61931005 and 61731017.
文摘Mobile communication standards have been developed into a new era of B5G and 6G.In recent years,low earth orbit(LEO)satellites and space Internet have become hot topics.The integrated satellite and terrestrial systems have been widely discussed by industries and academics,and even are expected to be applied in those huge constellations in construction.This paper points out the trends of two stages towards system integration of the terrestrial mobile communication and the satellite communications:to be compatible with 5G,and to be integrated within 6G.Based on analysis of the challenges of both stages,key technologies are thereafter analyzed in detail,covering both air interface currently discussed in 3GPP for B5G and also novel network architecture and related transmission technologies toward future 6G.
基金supported by the National Natural Science Foundation of China (No. 61631003, 61601055)the National Science Fund for Distinguished Young Scholars (No. 61525101)
文摘Joint radar and communication(JRC)technology has become important for civil and military applications for decades.This paper introduces the concepts,characteristics and advantages of JRC technology,presenting the typical applications that have benefited from JRC technology currently and in the future.This paper explores the state-of-the-art of JRC in the levels of coexistence,cooperation,co-design and collaboration.Compared to previous surveys,this paper reviews the entire trends that drive the development of radar sensing and wireless communication using JRC.Specifically,we explore an open research issue on radar and communication operating with mutual benefits based on collaboration,which represents the fourth stage of JRC evolution.This paper provides useful perspectives for future researches of JRC technology.
文摘集成了大型机移植到微机上的图形学算法模块,并增加GUI(graphic user interface)界面。使用Windows进程间通信技术来实现GUI界面和控制台程序间数据通信。利用管道技术并结合某曲面造型系统开发要求,编制了一个进程间通信的中介模块,给出该模块的代码和执行流程,在系统运行时通过直接调用中介模块实现GUI菜单命令驱动算法执行的数据交互。中介模块经适当修改后可以解决类似场合的数据通信问题。
