Quadrature Amplitude Modulation (QAM) schemes like 4-QAM (QPSK), 16-QAM and 64-QAM are used in typical wireless digital communications specifications like ...

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Second-generation FEC can provide up to 10 dB of code gain, while still higher coding gains are achievable based on ‘soft decision-making’ and iterative decoding FECs, such as block turbo codes. 224 ...

Similarly, 802.11ac’s 160-MHz bandwidth configuration uses the same symbol rate for each subcarrier (312.5 kHz), but simply adds data rate (and hence bandwidth) by using more subcarriers.