### Which is better 16-QAM or 64QAM?

## Which is better 16-QAM or 64QAM?

From this you can determine 64 QAM provides 50% more bandwidth than 16 QAM (12 divided by 8). If you’re going from QPSK to 64 QAM you’ll get 300% more bandwidth or 3x. OOK to 64QAM gives you 12x more bandwidth.

## What are the advantages of 16 QAM?

Benefits or advantages of QAM ➨The major benefit of QAM modulation variants is efficient usage of bandwidth. This is due to the fact that QAM represent more number of bits per carrier. For example, 16QAM maps 4 bits per carrier, 64QAM maps 6 bits per carrier, 256QAM maps 8 bits per carrier and so on.

**What is the symbol rate of 64-QAM?**

Answer. For 64-QAM, the number of symbols M = 64. There are six bits per symbol, asM = 2n and 64 = 26.

### What’s the difference between 16 QAM and 64 QAM?

There are many variants to this technique. ● Most popular are 16-QAM, 64-QAM and 256-QAM. The example below explains 16-QAM. The 16 qam bits per symbol are 4 (four). This means in 16-QAM each symbol represents 4 bits as mentioned in the 16-QAM constellation diagram above.

### Are there two levels of modulation for 16 QAM?

As mentioned for each symbol both phase and amplitudes are varied to represent different bits. There are two levels of amplitudes for each phase i.e. d1 level and d2 level . There are many variants to this technique. Most popular are 16-QAM, 64-QAM and 256-QAM . The example below explains 16-QAM. The 16 qam bits per symbol are 4 (four).

**How to calculate the symbol error rate for 64 QAM?**

For computing the symbol error rate for an M-QAM modulation, let us consider the 64-QAM constellation as shown in the figure below and extend it to the M-QAM case. Figure: Constellation plot for 64-QAM modulation (without the scaling factor of )

## Is the power spectrum and bandwidth of QAM the same?

The power spectrum and bandwidth efficiency of QAM modulation is identical to M-ary PSK modulation, in other words for the same order phase shift keying, the power spectrum and bandwidth efficiency levels are exactly the same whether quadrature amplitude modulation or phase shift keying is used.

Which is better 16-QAM or 64QAM? From this you can determine 64 QAM provides 50% more bandwidth than 16 QAM (12 divided by 8). If you’re going from QPSK to 64 QAM you’ll get 300% more bandwidth or 3x. OOK to 64QAM gives you 12x more bandwidth. What are the advantages of 16 QAM? Benefits…