Abstract
In this paper, an improved low-complexity partial transmit sequences (PTS) scheme is proposed to reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) systems. In the proposed PTS scheme, a set of cost functions derived from the power of the time-domain samples of each subblock is used to select the samples for peak power estimation. Furthermore, we develop a new two-stage algorithm to reduce the computational complexity of the optimization process of the PTS scheme. Compared to related works, the proposed PTS scheme can achieve similar PAPR reduction performance, but with much lower computational complexity.
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