基于IRS-NOMA辅助的短包通信系统性能分析
Performance analysis of short-packet communication system based on 1RS-NOMA
赵丽玲 1杨睛 1丁杰 2高锐1
作者信息
- 1. 扬州大学信息工程学院,江苏扬州 225127
- 2. 江苏科技大学计算机学院,江苏镇江 212100
- 折叠
摘要
为了揭示短包数据在智能反射面(intelligent reflecting surface,IRS)和非正交多址接入(non-orthgonal multiple access,NOMA)技术辅助的通信系统中的传输性能,对短包通信系统性能进行深入研究.针对IRS具有理想相移和存在1 bit相位误差两种情况,借助短包通信相关理论和一阶黎曼积分法,获得近用户和远用户处平均误块率(block error rate,BLER)的解析结果;基于BLER的表达式,进一步分析系统吞吐量性能;利用蒙特卡洛仿真实验验证理论分析的正确性.结果表明:增加反射单元数目或增大信噪比都可显著改善短包传输的可靠性;相位误差对BLER和吞吐量的影响不容忽视.
Abstract
In order to reveal the transmission performance of short-packet data in intelligent reflec-ting surface(IRS)and non-orthogonal multiple access(NOMA)technology-assisted communication systems,the performance of short packet communication system is deeply studied.By utilizing the theory of short-packet communication and the first-order Riemann integral,the analytical results of the average block error rate(BLER)at the near user and the far user under the ideal phase shift and the case of 1 bit phase error for the IRS are obtained.The system throughput performance is further analyzed based on the expression of BLER.The correctness of the theoretical analysis is verified by Monte-Carlo simulation.The simulation results show that both increasing the number of reflecting elements and increasing the signal-to-noise ratio can significantly improve the reliability of short-packet transmission,and the effects of phase error on BLER and throughput can not be neglected.
关键词
智能反射面/非正交多址接入/短包通信/误块率/吞吐量Key words
intelligent reflecting surface/non-orthogonal multiple access/short-packet communica-tion/block error rate/throughput引用本文复制引用
基金项目
国家自然科学基金资助项目(61901408)
出版年
2024
NETL
NSTL
万方数据