Phase Noise for OFDM systems (discrete-time Wiener process) [duplicate]

1. What is phase noise OFDM?
2. What issue is caused by phase noise in OFDM system?
3. What is phase noise in RF design?

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 ...

What issue is caused by phase noise in OFDM system?

Recent studies have shown that even small phase noise destroys orthogonalities between OFDM subcarrier signals and subsequently gives rise to both common phase error (CPE) and intercarrier interference (ICI), causing significant performance loss [9-15].

What is phase noise in RF design?

Phase noise is defined as the noise arising from the rapid, short term, random phase fluctuations that occur in a signal. These random fluctuations are caused by time domain instabilities called as phase jitter.