基于时隙ALOHA与NOMA的通信系统性能分析  

Performance Analysis of Communication System Based on Slotted ALOHA and NOMA

作　　者：杨梦珂 翟道森 费聚锋 张若南[1] 杨炎坤 张伟 YANG Mengke;ZHAI Daosen;FEI Jufeng;ZHANG Ruonan;YANG Yankun;ZHANG Wei(Electronic Information College,Northwestern Polytechnical University,Xi’an 710072,Shaanxi,China;Shanghai Radio Equipment Research Institute,Shanghai 201109,China)

机构地区：[1]西北工业大学电子信息学院,陕西西安710072 [2]上海无线电设备研究所,上海201109

出　　处：《制导与引信》2022年第3期38-42,共5页Guidance & Fuze

基　　金：上海航天科技创新基金(SAST2019-070)。

摘　　要：针对时隙ALOHA和非正交多址接入(non-orthogonal multiple access,NOMA)结合的通信新系统开展研究,通过理论分析得到了新系统的通过率表达式,结合仿真分析了新系统的性能。设计数值算法求解新系统的最大通过率和最佳到达率,并针对多数据包碰撞情况,设计冲突分解方案。研究结果表明,与时隙ALOHA系统相比,新系统具有更高的通过率和更强大的冲突分解能力。A new communication system combining slotted ALOHA and non-orthogonal multiple access(NOMA)is studied.The pass rate expression of the new system is obtained by theoretical analysis,and the performance of the new system is analyzed by simulation.A numerical algorithm is designed to solve the maximum pass rate and the best arrival rate of the new system,and a conflict resolution scheme is designed for multi-packet collision.The results show that the new system has higher pass rate and stronger conflict resolution capability compared with the slotted ALOHA system.

关 键 词：时隙ALOHA 非正交多址 性能分析 

分 类 号：TN915[电子电信—通信与信息系统]