Maximum-likelihood frequency recovery for OFDM signals transmitted over multipath fading channels

被引：26

作者：

Chiavaccini, E ^{[1
]}

Vitetta, GA ^{[1
]}

机构：

[1] Univ Modena, Dept Informat Engn, I-41100 Modena, Italy

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2004年 / 52卷 / 02期

关键词：

fading channels; frequency synchronization; maximum-likelihood (ML) estimation; multicarrier modulation; orthogonal frequency-division multiplexing (OFDM);

D O I：

10.1109/TCOMM.2003.822706

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：

In this paper, a novel feedback frequency synchronizer for orthogonal frequency-division multiplexing signals transmitted over multipath fading channels is described. Its derivation is based on maximum-likelihood estimation techniques and assumes an approximate statistical knowledge of the communication channel. The performance of the proposed algorithm is assessed by computer simulation, and is compared with that provided by other synchronization algorithms and with Cramer-Rao bounds.

引用

页码：244 / 251

页数：8

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