Name
Abstract | ||
|---|---|---|
Due to the overlapping structure of the offset quadrature amplitude modulation-based orthogonal frequency-division multiplexing (OQAM-OFDM) signals, the peak-to-average power ratio (PAPR) in OQAM-OFDM systems cannot be efficiently reduced by existing PAPR reduction methods, which independently consider the PAPR reduction in each data block. In this paper, a novel multiblock tone reservation (MB-TR ) scheme is proposed for the PAPR reduction in OQAM-OFDM systems. The key idea of the MB-TR scheme is to exploit the overlapping structure of the OQAM-OFDM signals and jointly consider the adjacent data blocks to obtain the clipping noise. To effectively eliminate the peaks of the OQAM-OFDM signals, the MB-TR scheme generates the peak-canceling signal by employing the weighted least square algorithm to fit the waveform of the peak-canceling signal to the waveform of clipping noise. Simulation results and analysis show that the MB-TR scheme could offer better PAPR reduction with lower computational complexity than the clipping control tone reservation scheme directly employed in OQAM-OFDM systems. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/TBC.2015.2465146 | TBC |
Keywords | Field | DocType |
Peak to average power ratio,OFDM,Bit error rate,Computational complexity,Least squares methods,Frequency division multiplexing | Telecommunications,Computer science,Frequency-division multiplexing,Waveform,Block (data storage),Electronic engineering,Multiplexing,Orthogonal frequency-division multiplexing,Clipping (audio),Bit error rate,Computational complexity theory | Journal |
Volume | Issue | ISSN |
61 | 4 | 0018-9316 |
Citations | PageRank | References |
4 | 0.41 | 16 |
Authors | ||
5 | ||