Blind Carrier Frequency Offset Estimation Based on Weighted Subspace Projection Approach for Interleaved OFDMA Uplink

被引：2

作者：

Chang, Ann-Chen ^{[1
]}

Shen, Chih-Chang ^{[1
]}

机构：

[1] Ling Tung Univ, Dept Informat Technol, Taichung 408, Taiwan

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2015年 / E98A卷 / 03期

关键词：

interleaved OFDMA; carrier frequency offset; noise-subspace; signal-subspace; SYSTEMS;

D O I：

10.1587/transfun.E98.A.878

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

This letter deals with the carrier frequency offsets (CFO) estimation problem for orthogonal frequency division multiple access (OFDMA) uplink systems. Combined with centro-symmetric (CS) trimmed autocorrelation matrix and weighting subspace projection, the proposed estimator has better estimate performance than MVDR, MUSIC, CS-MUSIC, and ESPRIT estimators, especially in relatively less of OFDMA blocks and low SNR situations. Simulation results are presented to verify the efficiency of the proposed estimator.

引用

页码：878 / 880

页数：3

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