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It is well known that the high peak-to-average power ratio (PAPR) and large spectrum sidelobe power are two main drawbacks at the transmitter in noncontiguous orthogonal frequency-division multiplexing (NC-OFDM)-based cognitive radio (CR) systems. In this paper, we propose a novel signal cancelation (SC) method for joint PAPR reduction and sidelobe suppression in NC-OFDM-based CR systems. The key...
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