An Effective CFO Estimation Method Based on Unitary Transformation for Interleaved OFDMA Uplink Systems

被引：0
|
作者：
Du, Ruiyan [1 ]
Wang, Jin Kuan [1 ]
Liu, Fulai [1 ]
Bo, Yanli
Cui, Liang
机构：
[1] Northeastern Univ, Sch Informat Sci & Engn, Shenyang 110004, Peoples R China
来源：
2012 INTERNATIONAL WORKSHOP ON INFORMATION AND ELECTRONICS ENGINEERING | 2012年 / 29卷
关键词：
Carrier Frequency Offset (CFO); orthogonal frequency-division multiple-access (OFDMA); unitary transformation; FREQUENCY-OFFSET ESTIMATION; SYNCHRONIZATION; TRANSMISSIONS; ESPRIT;
D O I：
10.1016/j.proeng.2012.01.306
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper presents an effective carrier frequency offset (CFO) algorithm based on unitary transformation and MUSIC technique, for interleaved orthogonal frequency-division multiple-access (OFDMA) uplink systems. Compared with other recently proposed estimation approaches, the proposed method offers several advantages. Firstly, the proposed method reduces the computational complexity significantly by dealing with only real-valued computations. Secondly, the proposed method incorporates the data stacking technology and the unitary transformation, which adds structure to the data model for the implementation of the proposed method, and leads to an improved estimation performance. Simulation results demonstrate the efficacy of the proposed algorithm. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Harbin University of Science and Technology
引用
收藏
页码：2308 / 2312
页数：5
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