摘要
在分析传统DS-CDMA优缺点的基础上,介绍了一种新的具有高频谱效率和适合于高速数据传输的多载波CDMA(MC-CDMA)技术方案。阐明了MC-CDMA的结构和信号形式,进而对其优缺点作出了归纳。仿真结果显示,由于其内在的频率分集性能和克服多径时延的能力,MC-CDMA可以表现出比DS-CDMA更好的误码率性能。
Based on the analysis of the advantage and disadvantage of conventional DS-CDMA,A novel technology scheme called Multicarrier CDMA(MC-CDMA) is introduced,which can achieves high spectral efficiency and is desirable to support high-data-rate digital transmission.The structure and the signal form of MC-CDMA is proposed which leads to a summary of its advantage and disadvantage over DS-CDMA. The simulation shows that because of its inherent capacity of frequency diversity and combating the multipath propagation effect, MC-CDMA outperforms DS-CDMA in BER.
出处
《通信技术》
2003年第2期58-59,62,共3页
Communications Technology
