An improved DFT-SOFDM scheme based on inter-carrier interference cancellation

Author

Yi, Jin-Wang ; Cheng, En ; Sun, Hai-Xin ; Yuan, Fei

Author_Institution

Key Lab. of Underwater Acoust. Commun. & Marine Inf. Technol., Xiamen Univ., Xiamen, China

fYear

2010

fDate

9-11 April 2010

Firstpage

430

Lastpage

433

Abstract

In this paper, a novel and efficient improved spectrum allocation scheme of DFT-SOFDM in a frequency selective channel is presented. The proposed scheme exploits data conjugate mapping on the basis of inter-carrier interference (ICI) cancellation, which has low complexity but high performance. The illustrative examples over Least Square (LS) and Linear Minimum Mean-Squared Error (LMMSE) equalization demonstrate that the proposed scheme can achieve better BER and Peak to Average Power Ratio (PAPR) performance compared to the conventional distributed spectrum allocation scheme in DFT-SOFDM system.

Keywords

OFDM modulation; discrete Fourier transforms; error statistics; interference suppression; least squares approximations; radio spectrum management; BER; DFT-SOFDM scheme; ICI cancellation; LMMSE equalization; Linear Minimum Mean-Squared Error equalization; PAPR performance; data conjugate mapping; distributed spectrum allocation scheme; frequency selective channel; inter-carrier interference cancellation; least square equalization; peak to average power ratio; Bit error rate; Downlink; Frequency conversion; Frequency diversity; Frequency domain analysis; Interference cancellation; OFDM; Peak to average power ratio; Radio spectrum management; Wireless communication; DFT-SOFDM; ICI cancellation; LMMSE; LS; data conjugate mapping; frequency domain equalization (FDE);

fLanguage

English

Publisher

ieee

Conference_Titel

Image Analysis and Signal Processing (IASP), 2010 International Conference on

Conference_Location

Zhejiang

Print_ISBN

978-1-4244-5554-6

Electronic_ISBN

978-1-4244-5556-0

Type

conf

DOI

10.1109/IASP.2010.5476083

Filename

5476083