Comparison of frequency offset estimation techniques for burst OFDM

Author

Patel, Shrenik ; Cimini, Leonard J., Jr. ; McNair, Bruce

Author_Institution

Wireless Inf. Network Lab., Rutgers Univ., Piscataway, NJ, USA

Volume

2

fYear

2002

fDate

6/24/1905 12:00:00 AM

Firstpage

772

Abstract

A major impediment to high-bit-rate wireless transmission is multipath delay spread. Orthogonal frequency division multiplexing (OFDM) addresses this impairment, transmitting several parallel lower bit rate streams. Independent transmit and receive oscillators create frequency offset, generating interchannel interference and degrading performance. Several frequency offset estimation techniques have been proposed but varied test conditions make comparison difficult. Here, we compare these schemes under identical conditions and propose three new offset estimation techniques and include them in our comparison.

Keywords

OFDM modulation; adjacent channel interference; data communication; delay estimation; frequency estimation; interference suppression; intersymbol interference; multipath channels; packet radio networks; ISI; burst OFDM; frequency offset estimation; high-bit-rate wireless transmission; interchannel interference; intersymbol interference; multipath delay spread; orthogonal frequency division multiplexing; parallel lower bit rate streams; performance; receive oscillators; transmit oscillators; Bit rate; Degradation; Delay; Frequency estimation; Impedance; Interchannel interference; Intersymbol interference; OFDM; Oscillators; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th

Print_ISBN

0-7803-7484-3

Type

conf

DOI

10.1109/VTC.2002.1002592

Filename

1002592