Real-Time Dispersion Code Multiple Access (DCMA) for High-Speed Wireless Communications

TL;DR

This paper introduces and validates a real-time, analog dispersion coding scheme called DCMA for high-speed wireless communications, demonstrating its feasibility through modeling, experiments, and statistical analysis.

Contribution

It provides a mathematical description, experimental proof-of-concept, and statistical characterization of DCMA, a novel analog multiple access scheme for wireless systems.

Findings

DCMA is suitable for high-speed wireless communication.

Chebyshev dispersion coding enhances DCMA performance.

Experimental 2x2 DCMA system confirms theoretical predictions.

Abstract

We model, demonstrate and characterize Dispersion Code Multiple Access (DCMA) and hence show the applicability of this purely analog and real-time multiple access scheme to high-speed wireless communications. We first mathematically describe DCMA and show the appropriateness of Chebyshev dispersion coding in this technology. We next provide an experimental proof-of-concept in a 2 X 2 DCMA system. Finally,we statistically characterize DCMA in terms of bandwidth, dispersive group delay swing, system dimension and signal-to-noise ratio.