Constellation Design for Future Communication Systems: A Comprehensive Survey

The choice of modulation schemes is a fundamental building block wireless communication systems. As key component physical layer design, they critically impact the expected capacity and signal robustness. Their design also critical for successful roll-out standards that require compromise between performance, efficiency, latency, hardware requirements. This paper presents survey constellation strategies associated outcomes discusses their performance complexity to address need some desirable properties, including consistency, channel capacity, system required demapping architecture, flexibility, independence. Existing approaches designs are investigated using appropriate metrics categorized based on theoretical algorithm design. Next, application different analyzed in context, aiming at distilling general guidelines applicable Finally, provides discussion directions future standardization processes.