Multi-User Multi-Carrier Differential Chaos Shift Keying Communication System

TL;DR

This paper introduces a multi-user, multi-carrier DCSK system that enhances energy efficiency and spectral efficiency while maintaining robustness and high data rates, suitable for complex communication environments.

Contribution

It proposes a novel MC-DCSK architecture with separate subcarriers for reference and data, improving energy and spectral efficiency over traditional DCSK systems.

Findings

Enhanced spectral efficiency demonstrated

Improved energy savings over conventional systems

Maintained robustness and high data rate

Abstract

In this paper, a multi user Multi-Carrier Differential Chaos Shift Keying (MC-DCSK) modulation is presented. The system endeavors to provide a good trade-off between robustness, energy efficiency and high data rate, while still being simple. In this architecture of MC-DCSK system, for each user, chaotic reference sequence is transmitted over a predefined subcarrier frequency. Multiple modulated data streams are transmitted over the remaining subcarriers allocated for each user. This transmitter structure saves energy and increases the spectral efficiency of the conventional DCSK system.