摘要
通过对单载波频域均衡(SC-FDE)系统的分析得出了对最小二乘(LS)信道估计中采用的训练帧的要求,从理论上推导了不计循环前缀(CP)能量损失的条件下,SC-FDE系统采用LS方法估计信道的性能界。文中指出,Newmann序列适合作为SC-FDE系统频域LS信道估计的训练帧。理论分析和仿真结果都表明,采用Newmann序列可以达到LS信道估计的性能界。
In this paper, the requirements of training sequence for channel estimation in SC-FDE systems are discussed, and the customarily used training sequence for channel estimation in OFDM systems can not be used in SC-FDE systems directly is pointed out. By analyzing, it is concluded that Newmann sequence is very suitable for SC-FDE systems. Without considering the energy lost of CP, the LS estimation performance bound is given. Theoretical analysis and simulation results show that this bound can be achieved by using Newmann sequence.
出处
《电子与信息学报》
EI
CSCD
北大核心
2007年第4期954-958,共5页
Journal of Electronics & Information Technology
基金
山东大学信息科学与工程学院科研启动基金资助课题
关键词
单载波频域均衡
辅助数据
最小二乘算法
信道估计
训练帧
Single Carrier-Frequency Domain Equalizer （SC-FDE）
Data-aided
Least Square （LS）
Channel estimation
Training sequence
