摘要
基于信道估计值提出了一种适用于单小区情况下LAS-CDMA/AMC系统的SNR测量方法,并通过COSSAP仿真比较了该方法在各种信道环境下与理想SNR测量的系统吞吐量性能.仿真结果表明基于信道估计值的SNR测量方法可以取得近似理想的性能,是一种简单的测量方案.
Channel quality measurement for AMC (Adaptive Modulation and Coding) system is studied. A simple SNR (Signal to Noise Ratio) measurement scheme based on the channel estimation has been proposed for the downlink multi-user LAS-CDMA/AMC system. By COSSAP simulation, it has been verified that the AMC system used the scheme proposed in this paper has the similar throughput performance with that used the ideal SNR measurement. Thus the SNR measurement based on channel estimation is a simple and useful scheme for the downlink multi-user LAS-CDMA/AMC system.
出处
《北京邮电大学学报》
EI
CAS
CSCD
北大核心
2003年第4期66-69,89,共5页
Journal of Beijing University of Posts and Telecommunications
基金
中国自然科学基金资助项目(69931050)
