一种用于LAS-CDMA/AMC系统下行链路的SNR测量方法

北京邮电大学学报

一种用于LAS-CDMA/AMC系统下行链路的SNR测量方法

北京邮电大学信息工程学院 , 北京 100876

基金资助:
中国自然科学基金资助项目 (69931050)

A SNR Measurement Applied to the Downlink
LAS-CDMA/AMC System

Information Engineering School, Beijing University of Posts and Telecommunications, Beijing 100876, China

Supported by:

摘要/Abstract

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.

关键词:

信道估计, SNR测量, 自适应调制编码

Abstract: 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 through put 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.

Key words:

channel estimation, SNR measurement, AMC

中图分类号:

TN911. 22

董江波,邹永忠,李道本.

一种用于LAS-CDMA/AMC系统下行链路的SNR测量方法

[J]. 北京邮电大学学报.

DONG Jiang-bo, ZOU Yong-zhong,LI Dao-ben. A SNR Measurement Applied to the Downlink

LAS-CDMA/AMC System

[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM.