Zero padded-OFDM signal?

1. What is zero padding in OFDM?
2. What is zero padded FFT?
3. What is phase noise OFDM?

What is zero padding in OFDM?

Zero padding is a technique typically employed to make the size of the input sequence equal to a power of two. In zero padding, you add zeros to the end of the input sequence so that the total number of samples is equal to the next higher power of two.

What is zero padded FFT?

``Zero-padding'' means adding additional zeros to a sample of data (after the data has been windowed, if applicable). For example, you may have 1023 data points, but you might want to run a 1024 point FFT or even a 2048 point FFT.

What is phase noise OFDM?

With OFDM modulation, phase noise modifies the system by multiplying each received signal, in the time domain, by a random rotation factor e 3°m(n), whose correlation function, for n > 1, is given by Page 22 4 Note that, from (1.3) and (1.4), phase noise is a non-stationary random process with its correlation function ...