Title :
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
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);
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
DOI :
10.1109/IASP.2010.5476083
