Title

Design and performance analysis of a robust multi-carrier M-ary DCSK system: A noise suppression perspective

Document Type

Journal Article

Publication Title

IEEE Transactions on Communications

Publisher

IEEE

School

School of Engineering

RAS ID

52361

Funders

National Natural Science Foundation of China

Comments

Cai, X., Xu, W., Wang, L., & Kolumbán, G. (2022). Design and performance analysis of a robust multi-carrier M-ary DCSK system: A noise suppression perspective. IEEE Transactions on Communications. Advance online publication.

https://doi.org/10.1109/TCOMM.2022.3144276

Abstract

A Noise Suppression aided Multi-Carrier M-ary Differential Chaos Shift Keying (NS-MC-MDCSK) system is proposed here where each information subcarrier transmits an M-ary information-bearing signal and the M-ary constellation symbols are constructed by orthogonal Walsh codes to improve the energy efficiency. Exploiting the redundant information available in the received signal, we propose a noise suppression algorithm to suppress channel noise in the reference and M-ary information-bearing signals. In the proposed algorithm, correlation coefficients detected between the received reference and information-bearing signals are fed back to suppress the noise corrupting the signal received. This method reduces the channel noise significantly and provides an outstanding Bit Error Rate (BER) performance. A performance analysis is performed for the NS-MC-MDCSK system over Additive White Gaussian Noise (AWGN) and multipath fading channels. Finally, the BER performance of the NS-MC-MDCSK system is compared to that of other chaotic communications systems. It is shown that the NS-MC-MDCSK system offers better BER performance than its competitors.

DOI

10.1109/TCOMM.2022.3144276

Access Rights

subscription content

Share

 
COinS