Title :
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
fDate :
6/24/1905 12:00:00 AM
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;
Conference_Titel :
Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th
Print_ISBN :
0-7803-7484-3
DOI :
10.1109/VTC.2002.1002592
