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This paper presents a generalized frequency division multiplexing (GFDM) communication scheme based on 4-weighted fractional Fourier transform (WFRFT) precoding. The proposed scheme as well as its low complexity version achieves flexible multi-object optimization of system performance such as bit error rate (BER) and peak to average power ratio (PAPR). Compared to traditional GFDM scheme, the improved...
Recently an coordinated transmission approach to single carrier and multi-carrier convergence was proposed based on the weighted-type fractional Fourier transform (WFRFT). This hybrid carrier scheme also suffers the high peak to average power ratio (PAPR) since it contains the multi-carrier compo-nent. There is some research on the PAPR of WFRFT signals, whereas most of which only takes the discrete-time...
Recently, a hybrid single carrier(SC) and multi-carrier (MC) system based on the 4-weighted fractional Fourier transform (4-WFRFT) was proposed. As this hybrid carrier (HC) system contains MC component, it inherits the problem of high peak to average power ratio (PAPR). In this paper, we investigate the clipping technique for PAPR reduction in HC system. By analysis and simulation, we show that clipping...
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