Research Article
Deepen spectrum notch of CR signals with Partial Response System
@INPROCEEDINGS{10.1109/CROWNCOM.2009.5188965, author={Bing Liang and Luyong Zhang and Zheng Zhou}, title={Deepen spectrum notch of CR signals with Partial Response System}, proceedings={4th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications}, publisher={IEEE}, proceedings_a={CROWNCOM}, year={2009}, month={8}, keywords={Partial Response System; Cognitive Radio; OFDM; Spectrum notch}, doi={10.1109/CROWNCOM.2009.5188965} }- Bing Liang
Luyong Zhang
Zheng Zhou
Year: 2009
Deepen spectrum notch of CR signals with Partial Response System
CROWNCOM
IEEE
DOI: 10.1109/CROWNCOM.2009.5188965
Abstract
Partial response system (PRS) is introduced to OFDM technology to deepen spectrum notch when some subcarriers are turned off. By this, controllable interference which can be removed in the receiver without enhancing system complexity, is introduced to the cognitive radio (CR) signals. It can change spectrum shape of subcarriers of OFDM signals and deepen the spectrum notch when turning off some subcarriers. Therefore, this method can lower the interference between primary users and secondary ones in CR systems. Some simulation results are shown in this paper to approve the performance of this method.
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