Which constraint is mitigated by employing orthogonal frequency-division multiplexing (OFDM) in wireless communications?

💡 Explanation

OFDM mitigates intersymbol interference (ISI) because dividing the high-rate data stream into multiple lower-rate streams lengthens the symbol duration reducing the need for complex equalizers. Therefore, ISI is reduced; rather than alternatives involving signal attenuation, or power which are affected by other means.

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