A multiple guard interval based frequency error detector for OFDM systems

Author

Kim, Hyunjae ; Kang, Hongku ; Hwang, Wooncheol ; Kim, Kiseon

Author_Institution

Dept. of Inf. & Commun., K-JIST, Kwangju, South Korea

Volume

46

Issue

2

fYear

2000

fDate

5/1/2000 12:00:00 AM

Firstpage

363

Lastpage

367

Abstract

We deal with the carrier frequency synchronization of the orthogonal frequency division multiplexing (OFDM) system and propose a multiple guard interval based frequency error detector (GIB FED) using a set of consecutive guard interval data for OFDM system. We compare the performance of a multiple GIB FED with two conventional GIB FEDs. Under two-ray multipath fading channel, it is shown that the normalized frequency jitter of the proposed multiple GIB FED is about 2.1~4.9 times lower than that of GIB-I FED and 1.2~2.1 times lower than that of GIB-II FED. The acquisition time of multiple GIB FED is also about 1.8 and 3.2 times faster than those of GIB-I FED and GIB-II FED, respectively, regardless of the channel condition

Keywords

AWGN; OFDM modulation; error detection; fading channels; jitter; multipath channels; radio receivers; signal detection; synchronisation; AWGN channel; OFDM receiver; OFDM systems; acquisition time; carrier frequency synchronization; frequency error detector; guard interval data; multiple guard interval; normalized frequency jitter; orthogonal frequency division multiplexing; performance; two-ray multipath fading channel; Bandwidth; Delay effects; Detectors; Error correction; Fading; Frequency estimation; Frequency synchronization; Intersymbol interference; Jitter; OFDM;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.846671

Filename

846671