Low complexity frequency offset estimation for MB-OFDM system

Author

Shin, Sunkyung ; Kwak, Kyungsup

Author_Institution

Grad. Sch. of Inf. Technol. & Telecommun., Inha Univ., Incheon

fYear

2008

fDate

7-9 May 2008

Firstpage

234

Lastpage

236

Abstract

We address low complexity frequency offset estimation scheme with low complexity for Multi Band OFDM (MB-OFDM) system. The proposed methods estimate the frequency offset without highly increased complexity, using the auto-correlation property of the channel state information (CSI). Additionally, in order to reduce the channel estimation complexity Low-rank LMMSE channel estimation is adopted with the optimal number of rank. By using those two schemes, we can estimate the frequency offset and CSI with reduced hardware burden. We simulated the proposed algorithms under the IEEE 802.15 TG3a UWB (Ultrawide Band) channel model.

Keywords

OFDM modulation; channel estimation; least mean squares methods; ultra wideband communication; IEEE 802.15 TG3a; channel estimation complexity; channel state information; low complexity frequency offset estimation; multiband OFDM system; ultrawide band channel model; AWGN; Autocorrelation; Channel estimation; Channel state information; Frequency estimation; Information technology; Interference; OFDM; Physical layer; State estimation; LMMSE; MB-OFDM; frequency offset;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Pervasive Computing, 2008. ISWPC 2008. 3rd International Symposium on

Conference_Location

Santorini

Print_ISBN

978-1-4244-1652-3

Electronic_ISBN

978-1-4244-1653-0

Type

conf

DOI

10.1109/ISWPC.2008.4556204

Filename

4556204