摘要
近年来,随着信息技术的进步,卫星通信取得了多样化的研究成果。首先,在通信卫星技术的发展基础上,针对单层卫星中断性能差和网络阻塞概率大等问题,考虑配置有多根天线的小型卫星作为中继辅助;然后,通过分布式波束成形技术将卫星信号转发至地面的接收用户,以此推导出协作传输方案的系统中断概率和能效的理论表达式,并定量分析了不同天线数和小行星发射功率对系统中断概率和能效的影响;最后,通过蒙特卡洛模拟验证了理论性能的正确性。
In recent years,with the progress of information technology,satellite communications have achieved diversified research results.Firstly,based on the development of communication satellite technology,small satellites with multiple antennas are considered to be configured as relay assistance in view of the problems such as poor interruption performance of single-layer satellites and high probability of network blocking.Then,the satellite signals are relayed to receiving users on the ground by distributed beamforming technology,from which the theoretical expressions for the system interruption probability and energy efficiency of the collaborative transmission scheme are deduced,and the effects of different antenna numbers and asteroid transmitting power on the system interruption probability and energy efficiency is quantitatively analyzed.Finally,the correctness of the theoretical performance is verified by Monte Carlo simulation.
作者
许博
季铭仪
陈栋骏
XU Bo;JI Mingyi;CHEN Dongjun(College of Telecommunications and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 21003,China)
出处
《电子质量》
2023年第11期119-123,共5页
Electronics Quality
基金
南京邮电大学省级大学生科技创新训练计划项目(202210293075)资助。
关键词
多层卫星
波束成形
中断概率
系统能效
multi-layer satellite
beamforming
interruption probability
system energy efficiency
