OFDM系统中自适应调制与编码技术分析  

Analysis of Adaptive Modulation and Coding Technology in OFDM System

作　　者：栗雅清 LI Yaqing(Nanjing University of Aeronautics and Astronautics,Nanjing 211100,China)

机构地区：[1]南京航空航天大学,江苏南京211100

出　　处：《通信电源技术》2022年第3期121-123,共3页Telecom Power Technology

摘　　要：自适应调制与编码技术在正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)系统中发挥着不可替代的作用,是提高系统频谱效率的关键。通过阐述自适应调制与编码技术的主要机理,分析采用不同调制方式和不同编码码率时对OFDM系统所产生的影响,从而合理选择能够实现OFDM系统误帧率、吞吐量等性能进一步提升的方式。Adaptive modulation and coding technology plays an indispensable role in the OFDM system,and is the key to improving the spectral efficiency of the system.By expounding the main mechanism of the adaptive modulation and coding technology,this paper analyzes the impact on the Orthogonal Frequency Division Multiplexing(OFDM)system when using different modulation methods and different coding rates,so as to reasonably choose the method that can further improve the performance of the OFDM system,such as frame error rate and throughput.

关 键 词：正交频分复用(OFDM)系统 自适应调制 编码技术 

分 类 号：TN9[电子电信—信息与通信工程]