A Novel PAPR Reduction Scheme for SC-OFDM with Frequency Domain Multiplexed Pilots

作者：Hasegawa Fumihiro^*; Okazaki Akihiro; Kubo Hiroshi; Castelain Damien; Mottier David

来源：IEEE Communications Letters, 2012, 16(9): 1345-1348.

DOI：10.1109/LCOMM.2012.061912.120474

• SC-FDE
• SC-OFDM
• PAPR
• adaptive techniques

In this letter, a novel data-pilot multiplexing scheme with reduced peak to average power ratio (PAPR) is introduced for single carrier (SC)-orthogonal frequency division multiplexing (OFDM) systems. In the proposed scheme, phases of SC-OFDM symbols are rotated adaptively such that PAPR is reduced and circular shifts are introduced in the time domain (TD). To index the amount of phase rotation applied at the transmitter, a sequence of pilot symbols, which is unique for each phase rotation angle, is chosen from a predetermined set and multiplexed with the phase rotated SC-OFDM symbols in the frequency domain. Simulation results indicate that the proposed method can reduce the PAPR dramatically, and yield superior bit error rate (BER) performance compared to conventional methods.

• 出版日期2012-9