- What is I and Q in QAM?
- How many bits are represented by each symbol in 64-QAM?
- Is QAM and QPSK same?
- How many bits per symbol can be transmitted using 16-QAM?
What is I and Q in QAM?
In this scenario, the QAM signal comes with two carriers. Each has the same frequency but differs in phases by 90 degrees, or one-quarter of a cycle, which is the basis for the term quadrature. One signal is called the I signal, and the other is called the Q signal.
How many bits are represented by each symbol in 64-QAM?
For 64-QAM, the number of symbols M = 64. There are six bits per symbol, asM = 2n and 64 = 26.
Is QAM and QPSK same?
Yes, QPSK and 4-QAM are effectively the same. Higher order PSK and QAM would be different, but they reduce to the same thing if you only have 4 constellation points.
How many bits per symbol can be transmitted using 16-QAM?
Each symbol in the constellation contains up to 4 bits (0s and 1s) in a 16-QAM scheme. Therefore, the number of combinations that are possible using 4 binary bits is 24 = 16, with each state or symbol containing a value from 0000 to 1111.