Multiplication-Free Estimation of Integer Frequency Offset for OFDM-Based DRM Systems

被引：2
|
作者：
You, Young-Hwan [1 ]
Kwon, Ki-Won [2 ]
机构：
[1] Sejong Univ, uT Commun Res Inst, Seoul 143147, South Korea
[2] Korea Elect Technol Inst, Adv Mobile Technol Res Ctr, Seoul, South Korea
来源：
IEEE SIGNAL PROCESSING LETTERS | 2010年 / 17卷 / 10期
关键词：
Digital radio mondiale plus (DRM plus ); frequency estimation; OFDM;
D O I：
10.1109/LSP.2010.2060327
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter proposes a low complexity integer frequency offset (IFO) estimation scheme in an orthogonal frequency division multiplexing (OFDM) based digital radio mondiale plus (DRM+) system with nonuniform phased pilot symbols. To reduce the computational complexity, the pilot symbols used for frequency estimation in the DRM+ system are partitioned into a number of pilot subsets, and pilots in each subset are phase-rotated to have a unique phase so that the estimator is made computationally efficient.
引用
收藏
页码：851 / 854
页数：4
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