Power spreading based iterative ICI cancellation in doubly selective OFDM systems

Author

Tian Liu ; Taofu Mo ; Liang Han ; Youxi Tang

Author_Institution

Nat. key Lab. of Sci. & Technol. on Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

1

fYear

2013

fDate

15-17 Nov. 2013

Firstpage

21

Lastpage

24

Abstract

In the doubly selective mobile channel, the OFDM has serious inter-carrier interference (ICI). To overcome this problem, traditional interference cancellation (IC) method could be used under this circumstance. While the performance of traditional serial and parallel interference cancellation is depressed by error propagation. We proposed a power spreading based iterative IC algorithm, by using this method, without the error propagation is relieved, we could still get the multipath diversity of OFDM systems. Comparing with the linear detection method, about 4.5dB gain is delivered by iterative detection algorithm at the BER of 10^-2.

Keywords

OFDM modulation; diversity reception; intercarrier interference; iterative methods; multipath channels; doubly selective OFDM systems; doubly selective mobile channel; error propagation; intercarrier interference; iterative detection algorithm; linear detection method; multipath diversity; power spreading based iterative ICI cancellation;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems (ICCCAS), 2013 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4799-3050-0

Type

conf

DOI

10.1109/ICCCAS.2013.6765177

Filename

6765177