A new equalization method for OFDM system

Author

Ya, U. ; Zhang, Una ; Jia, Liqin

Author_Institution

Sch. of Comput. Sci., Henan Polytech. Univ., Jiaozuo, China

Volume

2

fYear

2009

fDate

19-20 Dec. 2009

Firstpage

287

Lastpage

290

Abstract

It is well known that the column vectors of FFT transform matrix are uniform phase vectors of unit circle and the components of a column represent the different phases of the vector, which is called the cyclic property of the column vectors. In this paper, we use the cyclic property of the column vectors to formulate the equalization matrix. To make the method work with fewer known OFDM symbols, over-sampling samples are employed. Simulation results demonstrate that the proposed method is effective in the equalization and the suppression of co-channel interference signals at each sub-carrier.

Keywords

OFDM modulation; equalisers; fast Fourier transforms; interference suppression; FFT transform matrix; OFDM symbols; OFDM system; co-channel interference signals; column vectors; interference signals suppression; new equalization method; orthogonal frequency-division multiplexing; uniform phase vectors; Array signal processing; Bandwidth; Data models; Design methodology; Equalizers; Intelligent transportation systems; Interchannel interference; OFDM modulation; Power electronics; Signal design; Cyclic property; Equalization; OFDM System; Over-sampling;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Intelligent Transportation System (PEITS), 2009 2nd International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4244-4544-8

Type

conf

DOI

10.1109/PEITS.2009.5406785

Filename

5406785