计算机技术与发展2012，Vol.22Issue(3)：35-38,42,5.
基于信道估计的SC-FDMA自适应传输方案
An Adaptive Transmission Scheme of SC-FDMA Based on Channel Estimation
摘要
Abstract
SC-FDMA is used in uplink of 3GPP LTE because its PAPR is lower than OFDMA. It analyses the mathematical model of SC FDMA transmission system,and introduces the Least-Square (LS) and Linear Minimum Mean-Square Error(LMMSE) channel estimation algorithm based on pilot with SC-FDMA system. Moreover,based on a comparison of the transmission performance between two subcarrier mapping methods of this system in different mobile environment, an adaptive transmission scheme based on channel estimation of SC-FDMA system is proposed. The simulation results show that the scheme' s performance is better than the method which uses a single subcarrier mapping. In the same BER situation, the proposed scheme can save about 3dB SNR.关键词
SC-FDMA/信道估计/自适应/子载波映射Key words
SOFDMA/channel estimation/self-adaptation/subcarrier mapping分类
信息技术与安全科学引用本文复制引用
张子杰,彭端,张欣,刘高星..基于信道估计的SC-FDMA自适应传输方案[J].计算机技术与发展,2012,22(3):35-38,42,5.基金项目
广州市应用基础研究项目(2006J1-C0331) （2006J1-C0331）
广东工业大学博士基金项目(073016) （073016）
