MSE Analysis of Sampling Frequency Offset Estimation Scheme for OFDM-Based Digital Radio Mondiale (DRM) Systems

被引：7
|
作者：
Shin, Won-Jae [1 ]
Seo, Jeongwook [2 ]
You, Young-Hwan [1 ]
机构：
[1] Sejong Univ, Sch Comp Engn, Seoul 143747, South Korea
[2] Korea Elect Technol Inst, Mobile Convergence Platform Res Ctr, Seoul, South Korea
来源：
WIRELESS PERSONAL COMMUNICATIONS | 2013年 / 71卷 / 02期
关键词：
Digital radio mondiale (DRM); OFDM; Sampling frequency offset;
D O I：
10.1007/s11277-012-0873-2
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
A precise estimation and compensation of sampling frequency offset (SFO) is an important issue in an orthogonal frequency division multiplexing (OFDM) system because of its time-variant behavior. This paper considers the problem of SFO estimation for OFDM-based digital radio mondiale (DRM) systems. In this study, we develop expressions for the mean square error (MSE) of the conventional SFO estimators used in the OFDM-based DRM system. Their low-complexity variants and computation complexity are reported. The theoretical MSE analysis for different algorithms are validated by Monte-Carlo simulations within the framework of the OFDM parameter and pilot pattern defined in the DRM specification. It is also shown that the computation complexity of the low-complexity variants is significantly reduced, compared with that of original versions.
引用
收藏
页码：1271 / 1281
页数：11
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