A low complexity joint parameter estimation scheme for Carrier Frequency Offset and I/Q Imbalance

Author

Lanante, Leonardo A., Jr. ; Imashioya, Ryuta ; Kurosaki, Masayuki ; Ochi, Hiroshi

Author_Institution

Kyushu Inst. of Technol., Kitakyushu

Volume

02

fYear

2009

fDate

15-18 Feb. 2009

Firstpage

1365

Lastpage

1369

Abstract

This paper presents a simple algorithm for jointly estimating carrier frequency offset and I/Q Imbalance parameters. The reduced complexity algorithm used is previously proposed as an estimation algorithm using 2 long training symbols of the 802.11 a preamble containing 64 samples each. We have shown in this paper that using two short training symbols for faster and less complex estimation scheme is only 1-2 dB below a system without CFO or IQ Imbalance.

Keywords

computational complexity; frequency estimation; wireless LAN; I-Q imbalance; IEEE 802.11; carrier frequency offset; low-complexity joint parameter estimation scheme; reduced complexity algorithm; training symbols; wireless local area networks; Bit error rate; Digital video broadcasting; Fading; Frequency estimation; Least squares approximation; Low pass filters; OFDM modulation; Parameter estimation; Surface acoustic waves; Wireless communication; Carrier Frequency Offset; I/Q Imbalance; Least Squares Estimate;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Communication Technology, 2009. ICACT 2009. 11th International Conference on

Conference_Location

Phoenix Park

ISSN

1738-9445

Print_ISBN

978-89-5519-138-7

Electronic_ISBN

1738-9445

Type

conf

Filename

4809668