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Sidelobe suppression and peak to average power ratio (PAPR) reduction are two main problems in NC-OFDM systems. The conventional research treat these two problems as two independent problems and our research focus on the general performance improvement in terms of the two problems. In this paper, the interactive impacts of these two issues are analyzed based on two joint processing models. Furthermore,...
In this paper, a low complexity peak-to-average power ratio (PAPR) reduction scheme is proposed for OFDM systems. By utilizing the properties of Discrete Fourier Transform (DFT), the proposed scheme divides the OFDM symbol into two disjoint subblocks in time domain, and generates a set of candidate signals by cyclically shifting one of the subblocks and sums them up. From the candidate signals, the...
In this paper, we propose an improved selective mapping (SLM) cascaded with iterative tone reservation (TR) method for peak-to average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) system. In the simple SLM cascaded with iterative TR method, the candidate signal which has the minimum PAPR is selected. However, since the number of iteration L of the largest peak...
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