Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/142618
Title: Multi-carrier M-ary DCSK system with code index modulation : an efficient solution for chaotic communications
Authors: Cai, Guofa
Fang, Yi
Wen, Jinming
Mumtaz, Shahid
Song, Yang
Frascolla, Valerio
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2019
Source: Cai, G., Fang, Y., Wen, J., Mumtaz, S., Song, Y., & Frascolla, V. (2019). Multi-carrier M-ary DCSK system with code index modulation : an efficient solution for chaotic communications. IEEE Journal of Selected Topics in Signal Processing, 13(6), 1375-1386. doi:10.1109/jstsp.2019.2913944
Journal: IEEE Journal of Selected Topics in Signal Processing 
Abstract: A new multi-carrier M-ary differential chaos shift keying system with code index modulation, referred to as CIMMC-M-DCSK, is proposed in this paper. In the proposed CIMMC-M-DCSK system, the reference and information-bearing signals for each subcarrier can be transmitted simultaneously by using the orthogonal sinusoidal carriers, where the information bearing signal adopts the M-DCSK modulation to further increase the data rate. With an aim to making full use of the system energy resources, the reference signals in all subcarriers are coded by a Walsh code to carry additional information bits. The analytical bit-error-rate (BER) expressions of the proposed CIMMC-M-DCSK system are derived over additive white Gaussian noise (AWGN) as well as multipath Rayleigh fading channels. Furthermore, a noise-reduction scheme and a hierarchicalmodulation scheme are designed for the proposed system. In particular, the former scheme can significantly improve the BER performance while the latter scheme can provide different quality of service (QoS) for the transmitted bits according to their different levels of importance. Simulation results verify the accuracy of the analytical expressions and the superiority of the proposed systems.
URI: https://hdl.handle.net/10356/142618
ISSN: 1932-4553
DOI: 10.1109/jstsp.2019.2913944
Schools: School of Electrical and Electronic Engineering 
Rights: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.1109/jstsp.2019.2913944
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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