OFDM_SYSTEM

作品数：96被引量：84H指数：3
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Selected-Mapping Peak-to-Average Power Reduction Method with Orthogonal Pilot Sequences in Underwater Acoustic OFDM System Without Side Information被引量：2
《Chinese Journal of Electronics》2021年第1期160-163,共4页QIAO Gang XING Siyu and ZHOU Feng 
supported by the National Natural Science Foundation of China (No.61431004, No.61571151, No.61501134)。
A novel Selected-mapping(SLM) Peak-to-average power ratio(PAPR) reduction scheme requires no Side information(SI) in Underwater acoustic(UWA)OFDM system is proposed. In the proposed scheme,every distinct phase sequenc...
关键词：Underwater acoustic communication OFDM PAPR reduction Selected mapping 
Modeling of Multipath Channel and Performance Analysis of MIMO-DCO-OFDM System in Visible Light Communications被引量：8
《Chinese Journal of Electronics》2019年第3期630-639,共10页JIA Kejun HAO Li 
supported by the National Natural Science Foundation of China(No.61461026)
When a big path difference exists between the multiple transmitter-receiver links, time dispersion is inevitable. A multipath channel model is proposed for Multiple-input multiple-output(MIMO)Visible light communicati...
关键词：Visible light communication(VLC) MULTIPLE input MULTIPLE output(MIMO) DC-biased optical OFDM Multipath channel model CLIPPING noise 
A Novel MLT-based ETF-OFDM System for Anti-Jamming Communications
《Chinese Journal of Electronics》2011年第4期719-724,共6页SHANG Yong FENG Xiaotao 
Previous research has shown that the Expanded time-frequency OFDM （ETF-OFDM） system has good performance in anti-jamming communication. In this paper, a novel Lapped transform-based ETF- OFDM system is proposed with...
关键词：Expanded time and frequency （ETF） Orthogonal frequency division multiplexing （OFDM） Modulated lapped transform （MLT） Anti-jamming. 
Power Allocation for Adaptive Turbo Coded OFDM System被引量：1
《Chinese Journal of Electronics》2011年第3期461-466,共6页YE Lei Alister Burr 
This work is supported by the Natural Science Foundation Project （No.CQCSTC2009BB2041）.
One of the problems in OFDM system is that bit errors are normally concentrated in a few severely faded subcarriers, which therefore normally restrict the performance of the whole system. Adaptation algorithms are abl...
关键词：OFDM Adaptive OFDM Turbo code Power allocation Water filling General algorithm. 
Adaptive Spreading Code Assignment for an Expanded Time-Frequency OFDM System with a Zero-forcing Equalizer被引量：1
《Chinese Journal of Electronics》2011年第2期312-316,共5页WU Bo SHANG Yong XIANG Haige 
The Expanded time-frequency （ETF-） OFDM system uses the two-level spreading technology for data transmissions. This system has shown to be robust against the narrowband jamming in flat fading channels. However, in m...
关键词：Code division multiple access （CDMA） Orthogonal frequency division multiple access （OFDMA） Resource allocation. 
Inter-carrier Interference Analysis and Mitigation for OFDM System over Fast Fading Channels被引量：3
《Chinese Journal of Electronics》2010年第1期181-186,共6页PENG Yuexing ZHAO Hui WANG Wenbo 
This work is supported by the National Natural Science Foundation of China （No.60802082） and Key Project of National Science and Technology Pillar Program （No.2008BAH30B11）.
Inter-carrier interference （ICI） due to Doppler spread is analyzed for OFDM system in highly mobile applications, and then an iterative ICI mitigation method is developed. With the Jakes＇ model for the Doppler powe...
关键词：Inter-carrier interference Orthogonalfrequency division multiplexing （OFDM） Iterative interference cancellation Doppler shift. 
PAPR Reduction in the OFDM System Employing the Prejudge and Adaptive Technique被引量：1
《Chinese Journal of Electronics》2006年第3期559-562,共4页YANG Gang SUN Jingtao LI Yushan 
This work is in part supported by the National Natural Science Foundation of China （No.60172004） and by Doctor Program Foundation of the Ministry of Education of China （No.20020701003）.
A novel prejudge and adaptive technique is proposed to efficaciously reduce the Peak-to-average power ratio （PAPR） of Orthogonal frequency division multiplexing （OFDM） signals. Based on the prospective PAPR perfor...
关键词：Adaptive technique Prejudge technique Orthogonal frequency division multiplexing （OFDM） Peak-to-average power ratio （PAPR）. 
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