Research Article
Communication Model and Performance Analysis of Frequency Modulation-Correlation Delay-Orthogonal Chaotic Phase Shift Keying
@INPROCEEDINGS{10.1007/978-3-030-62483-5_25, author={Juan Wang and Wei Li and Zhiming Qi and Shu Wang}, title={Communication Model and Performance Analysis of Frequency Modulation-Correlation Delay-Orthogonal Chaotic Phase Shift Keying}, proceedings={Green Energy and Networking. 7th EAI International Conference, GreeNets 2020, Harbin, China, June 27-28, 2020, Proceedings}, proceedings_a={GREENETS}, year={2020}, month={11}, keywords={Multi-ary Chaos keying FM modulation}, doi={10.1007/978-3-030-62483-5_25} }- Juan Wang
Wei Li
Zhiming Qi
Shu Wang
Year: 2020
Communication Model and Performance Analysis of Frequency Modulation-Correlation Delay-Orthogonal Chaotic Phase Shift Keying
GREENETS
Springer
DOI: 10.1007/978-3-030-62483-5_25
Abstract
In the Multi-ary chaos shift keying communication represented by CD-QCSK, each symbol carries multiple information bits, which can effectively improve the transmission rate. Since the bit energy of chaotic carrier is not constant, which may easily lead to misjudgment when receiving. Based on the feasibility study of combination in FM modulation and CD-QCSK communication, this article proposes a multi-ary FM-CD-QCSK communication model of frequency modulation-correlation delay-orthogonal chaos shift keying. By the FM modulator, The chaotic signal is changed into the carrier signal with constant envelope and random change of frequency within a certain range, so that each symbol has equal bit energy for transmission to improve the anti-interference and anti-noise ability of the system effectively. The simulation results show that, whatever the spreading spectrum factor changed, compared with existing Multi-ary chaos shift keying communication QCSK and CD-QCSK, the FM-CD-QCSK has better error performance and can better meet the requirements of high rate and communication quality under the same signal to noise ratio.
