A new estimation scheme for frequency and timing offsets in OFDM systems

Author

Chang, Sekchin ; Powers, Edward J.

Author_Institution

Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA

Volume

4

fYear

2000

fDate

2000

Firstpage

1832

Abstract

Orthogonal frequency division multiplexing (OFDM) is a possible candidate for high-rate data transmission in wireline and wireless communications. However, OFDM systems are very sensitive to frequency and timing offsets. The sensitivity causes the system performance to degrade drastically. Therefore, in this paper we propose a new estimation scheme for frequency and timing offsets in OFDM systems. This estimation is based on an ambiguity function. Simulation results show that frequency and timing offsets are estimated very accurately using our presented method

Keywords

OFDM modulation; delay estimation; frequency estimation; OFDM systems; ambiguity function; estimation scheme; frequency; high-rate data transmission; orthogonal frequency division multiplexing; system performance; timing offsets; wireless communication; wireline communications; Bandwidth; Degradation; Doppler shift; Frequency estimation; Frequency synchronization; Interference; OFDM modulation; Power engineering computing; Timing; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd

Conference_Location

Boston, MA

ISSN

1090-3038

Print_ISBN

0-7803-6507-0

Type

conf

DOI

10.1109/VETECF.2000.886136

Filename

886136