Synchronization method based on a new constant envelop preamble for OFDM systems

Author

Ren, Guangliang ; Chang, Yilin ; Zhang, Hui ; Zhang, Huining

Author_Institution

Nat. Key Lab. of ISN, Xidian Univ., Xi´´an, China

Volume

51

Issue

1

fYear

2005

fDate

3/1/2005 12:00:00 AM

Firstpage

139

Lastpage

143

Abstract

The synchronization method using the available constant envelop preamble is analyzed, and a new preamble weighted by pseudo-noise sequence is proposed, with which a novel timing and frequency offset estimation method is presented for orthogonal frequency division multiplexing (OFDM) systems in this paper. By the proposed method, the accuracy of the timing offset estimator is significantly improved, and the estimate range of the frequency offset estimator is greatly enlarged with no loss in accuracy. The performance of the proposed method is demonstrated by simulations.

Keywords

OFDM modulation; frequency estimation; random sequences; synchronisation; OFDM system; constant envelop preamble; frequency offset estimation method; orthogonal frequency division multiplexing; pseudonoise sequence; synchronization method; Accuracy; Frequency division multiplexing; Frequency estimation; Frequency synchronization; Intersymbol interference; Nonlinear distortion; OFDM; Peak to average power ratio; Timing; Wireless communication; Constant envelop preamble; OFDM; synchronization;

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/TBC.2004.842520

Filename

1406162