A Comparison Of Maximum Likelihood Frequency Offset Estimation Methods For OFDM Systems

被引：1
|
作者：
Nezamfar, H. [1 ]
Kahaei, M. H. [1 ]
机构：
[1] Univ Sci & Technol, Dept Elect Engn, Tehran, Iran
来源：
2008 INTERNATIONAL SYMPOSIUM ON TELECOMMUNICATIONS, VOLS 1 AND 2 | 2008年
关键词：
Orthogonal frequency division multiplexing (OFDM); Carrier Frequency Offset; Maximum Likelihood;
D O I：
10.1109/ISTEL.2008.4651304
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：
Maximum Likelihood (ML) estimation of the frequency offset between the transmitter and the, receiver from known transmitted preambles is the dominant technique for the estimation of Carrier Frequency Offset (CFO) in OFDM systems. A general formulation of ML detection problem for OFDM systems is provided in this paper and it is described how different ML techniques can be treated as special cases. In addition major newly proposed ML techniques are compared in a unified simulation framework in the presence of AWGN and their performance in terms of estimation range, and their complexity are compared.
引用
收藏
页码：224 / 229
页数：6
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