• Mar 3, 2026 lte air interface mpirical M, 64-QAM, and in LTE-Advanced, 256-QAM: QPSK: Offers robustness, suitable for poor channel conditions. 16-QAM / 64-QAM: Balances data rate and reliability. 256-QAM: Provides higher spectral efficiency but requires exc BY Whitney Wilderman
