On the Design of Super Constellations

TL;DR

This paper introduces super constellation communications and SAPSK modulation for 6G networks, providing a new high-rate modulation scheme with efficient detection and validated superior performance through simulations.

Contribution

It proposes SAPSK modulation and GPD-D detection, offering a novel high-data-rate modulation with low-complexity detection for 6G wireless systems.

Findings

SAPSK achieves lower SEP than existing constellations.

The GPD-D detector operates with O(1) complexity.

Simulation results confirm the effectiveness of SAPSK and the detection algorithm.

Abstract

In the evolving landscape of sixth-generation (6G) wireless networks, which demand ultra high data rates, this study introduces the concept of super constellation communications. Also, we present super amplitude phase shift keying (SAPSK), an innovative modulation technique designed to achieve these ultra high data rate demands. SAPSK is complemented by the generalized polar distance detector (GPD-D), which approximates the optimal maximum likelihood detector in channels with Gaussian phase noise (GPN). By leveraging the decision regions formulated by GPD-D, a tight closed-form approximation for the symbol error probability (SEP) of SAPSK constellations is derived, while a detection algorithm with O(1) time complexity is developed to ensure fast and efficient SAPSK symbol detection. Finally, the theoretical performance of SAPSK and the efficiency of the proposed O(1) algorithm are validated by numerical simulations, highlighting both its superiority in terms of SEP compared to various constellations and its practical advantages in terms of fast and accurate symbol detection.