摘要
该文引用了数字调制系统总体资源效率的测度算法,测算了正交频分复用（OFDM）系统的性能。通过OFDM信号在几种典型的调制方式下资源效率的比较,可以得出OFDM信号在256QAM调制下的性能更接近于理想系统的性能。
An algorithm of overall resource efficiency measure of digital modulations is cited to calculate the performence of OFDM system.Based on the comparion of tipical modulations of OFDM,the performance of OFDM is more close to the ideal system of the 256QAM modulations.
作者
刘金铸
段德平
王林
LIU Jin-zhu,DUAN De-ping,WANG Lin（College of Electronic and Information Engineering,Nanjing University of Information Science and Technology,Nanjing 210044,China）
出处
《电脑知识与技术》
2011年第2期913-915,共3页
Computer Knowledge and Technology
关键词
正交频分复用
整体资源效率
带宽效率
误码率
信道容量
OFDM
overall resource efficiency
bandwidth efficiency
bit error rate
channel capicity
