Research Article
Modulation Recognition In Fading Channels Using Higher Order Cyclic Cumulants
@INPROCEEDINGS{10.1109/CROWNCOM.2007.4549807, author={Eric Like and Zhiqiang Wu and Vasu Chakravarthy and Wei Su}, title={Modulation Recognition In Fading Channels Using Higher Order Cyclic Cumulants}, proceedings={2nd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications}, publisher={IEEE}, proceedings_a={CROWNCOM}, year={2008}, month={6}, keywords={Carbon capture and storage Cognitive radio Digital modulation Fading Frequency Higher order statistics Interference Phase shift keying Quadrature amplitude modulation Signal processing}, doi={10.1109/CROWNCOM.2007.4549807} }- Eric Like
Zhiqiang Wu
Vasu Chakravarthy
Wei Su
Year: 2008
Modulation Recognition In Fading Channels Using Higher Order Cyclic Cumulants
CROWNCOM
IEEE
DOI: 10.1109/CROWNCOM.2007.4549807
Abstract
In this paper, we investigate the performance of a cyclic cumulant (CC) based modulation classifier for digital communication signals in flat fading channels. The proposed system assumes no a priori information regarding the signal’s carrier frequency, symbol rate, or phase. For this reason, the classifier employs cyclic cumulants (CC) of different orders which are shown to be insensitive to unknown signal statistics. To capitalize on the relative strengths of different orders of CC, a hierarchical design is implemented. To further increase performance in fading channels, several multi-antenna combining schemes are investigated and compared, and are shown to provide significant performance gains over the single antenna case.