To reduce the system error rate and detection complexity of non-Nrthogonal Pulse Modulation based on Prolate Spheroidal Wave Function (PSWF-NPSM), we introduce the idea of modulation signal power multiplexing, and propose Power Domain non-orthogonal multicarrier modulation based on PSWF (PD-PSWF-NPSM). The proposed method distributes power of carrier signal according to its waveband, increase the minimum Euclidean distance of modulation signal and reduces system error rate. At the receiving end, we propose successive interference cancellation detection method based on detection statistics, which separates and detects PSWF signal according to the power difference between different branch signals. Theoretical and simulation results show that the proposed method can effectively improve the system error performance and reduce the complexity of modulation signal detection without reducing the spectral efficiency, modulation signal power spectrum and peak-to-average power ratio characteristics. Compared with PSWF-NPSM, when Bit Error Ratio (BER) is 10-5, the system error performance of the proposed method is improved by about 1.7 dB.
LU Faping
,
WANG Hongxing
,
LIU Chuanhui
,
CHEN Zhaonan
,
KANG Jiafang
. Power domain non-orthogonal pulse modulation based on prolate spheroidal wave function[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2019
, 40(9)
: 323102
-323102
.
DOI: 10.7527/S1000-6893.2019.23102
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