Benefits Analysis of Beam Hopping in Satellite Mobile System with Unevenly Distributed Traffic

作     者：Yitao Li Zhongqiang Luo Wuyang Zhou Jinkang Zhu Yitao Li;Zhongqiang Luo;Wuyang Zhou;Jinkang Zhu

作者机构：School of Automation and Information EngineeringSichuan University of Science and EngineeringArtificial Intelligence Key Laboratory of Sichuan ProvinceYibin 644000China CAS Key Laboratory of Wireless-Optical CommunicationsChinese Academy of SciencesSchool of Information Science and TechnologyUniversity of Science and Technology of China(USTC)Hefei 230026China 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2021年第18卷第9期

页      面：11-23页

核心收录：

学科分类：0810[工学-信息与通信工程] 080904[工学-电磁场与微波技术] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 

基　　金：the Natural Science Foundation of China under Grant 61801319 Sichuan Science and Technology Program under Grant 2020JDJQ0061 the Education Agency Project of Sichuan Province under Grant 18ZB0419 the Sichuan University of Science and Engineering Talent Introduction Project under Grant 2020RC33 

主　　题：satellite communication space-air-ground integrated network beam hopping unevenly distributed traffic performance analysis 

摘      要：Satellite mobile system and space-airground integrated network have a prominent superiority in global coverage which plays a critical role in remote and non-land regions, as well as emergency communications. However, due to the gradual angle attenuations of the satellite antennas, it is difficult to achieve full frequency multiplex among different beams as terrestrial 5G network. Multi-color frequency reuse is widely adopted in both academic and industry. Beam hopping scheme has attracted the attention of researchers recently due to the allocation flexibility. In this paper, we focus on analyzing the performance benefits of beam hopping compared with multi-color frequency reuse scheme in non-uniform user and traffic distributions in satellite system. Aerial networks are also introduced to form a space-airground integrated network for coverage enhancement,and the capacity improvement is analyzed. Besides,additional improved techniques are provided to make comprehensive analysis and comparisons. Theoretical analysis and simulation results indicate that the beam hopping scheme has a prominent superiority in the system capacity compared with the traditional multicolor frequency reuse scheme in both satellite mobile system and future space-air-ground integrated network.