高通量卫星随机接入控制技术研究  

Research on Random Access Control Technology for High-throughput Satellite

作　　者：白建东 贾岱 卢山[2] 王宇[1] BAI Jiandong;JIA Dai;LU Shan;WANG Yu(Beijing Institute of Tracking and Telecommunication Technology,Beijing 100094,China;The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]北京跟踪与通信技术研究所,北京100094 [2]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2024年第6期1553-1559,共7页Radio Engineering

摘　　要：为提升高通量卫星随机接入成功概率,提出了一种高通量卫星通信系统下的随机接入控制技术。高通量卫星多波束间存在重叠覆盖区域,可通过对重叠覆盖区域的用户接入进行管控,优化各波束的负载,提升系统吞吐率。通过对串行干扰消除算法的误包概率进行推导分析,得出了不同误包概率要求下的最大系统负载,根据该负载值,设计了自适应接入控制策略。当系统负载未超过最大负载时,可通过接入控制策略均衡各波束负载;当系统负载超过最大负载时,可通过限制用户接入方式控制系统负载。In order to improve the success probability of random access of high-throughput satellites,a random access control technology for the high-throughput satellite communication system is proposed.High-throughput satellites have overlapping coverage areas between multiple beams,and the user access in overlapping coverage areas can be controlled to optimize the load of each beam and improve the system throughput rate.By deducing and analyzing the packet error probability of the successive interference cancellation algorithm,the maximum system load under different packet error probability requirements is obtained.Based on this load value,an adaptive access control strategy is designed.When the system load does not exceed the maximum load,the beam load can be balanced by the access control strategy,and when the system load exceeds the maximum load,the system load can be controlled by restricting user access probability.

关 键 词：高通量卫星 随机接入 接入控制 串行干扰消除 

分 类 号：TN927[电子电信—通信与信息系统]