Road from Single-Access to Multiple-Access Waveform Design: Lessons Learned from the Past for an Effective Waveform Design for 6G
Nowadays, various emerging applications, services, and user requirements require rethinking the future multiple access technique of 6G. First, 6G should fully enable high mobility, using high frequency bands with large bandwidths, thanks to a strong resilience to high Doppler spreads. Second, 6G should offer massive IoT-enabled applications, with reduced frequency synchronization and power control signaling …
