In Orthogonal Frequency Division Multiplexing (OFDM) communication, which consequence results when phase noise increases in local oscillators used for signal demodulation?

💡 Explanation

Increased phase noise causes inaccuracies in the demodulation because the **Fast Fourier Transform (FFT)** demodulator misinterprets frequency components as separate, interfering carriers rather than true data symbols, therefore raising ICI, rather than improving SNR.

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