OFDM synchronization using PN sequence and performance

Author

Yan, Chunlín ; Fang, Jiayi ; Tang, Youxi ; Li, Shaoqian ; Li, Yingtao

Author_Institution

Nat. Key Lab of Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

1

fYear

2003

fDate

7-10 Sept. 2003

Firstpage

936

Abstract

In this paper, we propose a novel method for orthogonal frequency-division multiplexing (OFDM) time and frequency synchronization by using PN sequence and barker code, time synchronization performance is improved by barker code, and we also propose a simple but effective method by setting the threshold during time synchronization. Improved frequency synchronization algorithm is presented in this paper too. The idea of multipath utilizing is the core of the frequency synchronization algorithm. The performance of the synchronization proposed here is better than that of conventional methods. Estimation precision is boosted from 10^-3 to 10^-4 for moderate SNR. The requirements of time and frequency synchronization for beyond 3G system based on OFDM can be well satisfied while using the proposed method.

Keywords

3G mobile communication; OFDM modulation; frequency estimation; pseudonoise codes; synchronisation; OFDM synchronization; barker code; frequency synchronization; orthogonal frequency-division multiplexing; pseudo random noise; time synchronization; 3G mobile communication; Bandwidth; Digital video broadcasting; Frequency division multiplexing; Frequency estimation; Frequency synchronization; Intersymbol interference; Niobium; OFDM; Research and development;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on

Print_ISBN

0-7803-7822-9

Type

conf

DOI

10.1109/PIMRC.2003.1264411

Filename

1264411