卫星通信系统的稀疏码多址检测技术研究  

Research on Sparse Code Multiple Access Detection Technology in Satellite Communication Systems

作　　者：蒋怡婷 朱立东[1] JIANG Yiting;ZHU Lidong(National Key Laboratory of Science and Technology on Communications of UESTC,Chengdu,611731,China)

机构地区：[1]电子科技大学通信抗干扰技术国家级重点实验室,四川成都611731

出　　处：《天地一体化信息网络》2020年第1期61-65,共5页Space-Integrated-Ground Information Networks

摘　　要：对卫星通信系统中的SCMA检测算法进行研究,提出将码本优化分配与不完全迭代MPA算法联合检测,在提升系统性能的同时降低系统复杂度。同时,对SCMA检测算法的收敛性进行研究,提出改进的串并结合MPA算法,该算法能够加快系统收敛速度的同时降低处理时延,并且系统复杂度得到了降低。SCMA detection algorithms in the satellite communication system was studied,and optimal allocation of codebook and the incomplete iterative MPA detection algorithm were combined to improve system performance while reducing system complexity.The convergence of the SCMA detection algorithm was studied,and an improved serial-parallel MPA algorithm was proposed.This algorithm could accelerate the system convergence speed while reducing the processing delay,and the system complexity was also reduced.

关 键 词：卫星通信系统 稀疏码多址接入 检测算法 算法收敛性 

分 类 号：TN927.2[电子电信—通信与信息系统]