Title :
SK-OFDM Robust to Frequency Selective Fading Channel with Spectral Nulls
Author :
Qin Bo ; Zhang Sheng ; Lin Xiaokang
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Shenzhen, China
Abstract :
In this paper, we proposed a novel SK-OFDM scheme which has a good tolerance of deep fading channels, such as vehicular communication channels. By introducing the idea of spectral keying into OFDM scheme, the system has a better chance to recover the sub carriers with deep fading. We investigate the performance of proposed scheme over channel with spectral nulls and show how SK-OFDM gets advantage comparing to the conventional OFDM. The result of system simulation is in accordance with theoretical analysis.
Keywords :
OFDM modulation; fading channels; spectral analysis; SK-OFDM; deep fading channel; frequency selective fading channel; spectral keying; spectral nulls; subcarrier; vehicular communication channel; Baseband; Bit error rate; Channel estimation; Fading; Modulation; OFDM; Receivers; OFDM; spectral keying; spectral null;
Conference_Titel :
Communications and Mobile Computing (CMC), 2011 Third International Conference on
Conference_Location :
Qingdao
Print_ISBN :
978-1-61284-312-4
DOI :
10.1109/CMC.2011.120
