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In this letter, the phase noise (PN) effect on orthogonal frequency division multiplexing based multi-node transmission for small cell backhaul is studied. Since each transmitter is equipped with an independent oscillator, the received signals are corrupted by all of these independent PNs (plus the PN at the receiver), which renders the conventional PN compensation schemes at the receiver ineffective. In this letter, a PN compensation scheme for multi-node transmission is proposed, which can effectively mitigate the effect of the multiple PNs.
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Xiaoming Chen (2017) studied this question.
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