PSWFs Frequency Domain Modulation and Demodulation Method

Faping LU; Hongxing WANG; Chuanhui LIU; Jiafang KANG; Dawei YANG

doi:10.11999/JEIT190642

Volume 42 Issue 8

Aug. 2020

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Article Navigation > Journal of Electronics & Information Technology > 2020 > 42(8): 1888-1895

Faping LU, Hongxing WANG, Chuanhui LIU, Jiafang KANG, Dawei YANG. PSWFs Frequency Domain Modulation and Demodulation Method[J]. Journal of Electronics & Information Technology, 2020, 42(8): 1888-1895. doi: 10.11999/JEIT190642

Citation:

Faping LU, Hongxing WANG, Chuanhui LIU, Jiafang KANG, Dawei YANG. PSWFs Frequency Domain Modulation and Demodulation Method[J]. Journal of Electronics & Information Technology, 2020, 42(8): 1888-1895. doi: 10.11999/JEIT190642

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PSWFs Frequency Domain Modulation and Demodulation Method

doi: 10.11999/JEIT190642

1.
Naval Aviation University, Yantai 264001, China
2.
Key Laboratory on Signal & Information Processing of Shandong Provience, Yantai 264001, China

Funds: The National Natural Science Foundation of China (61701518), The Special Foundation Project of Taishan Scholar of Shandong Province (ts20081130)

Received Date: 2019-08-26
Rev Recd Date: 2020-04-29

Available Online: 2020-05-13

Publish Date: 2020-08-18

Abstract

Abstract

In view of the problem of high complexity for non-sinusoidal time domain modulation algorithms based on Prolate Spheroidal Wave Functions (PSWFs), spatial mapping is introduced to analyze the complete orthogonality and derive the minimum number of sampling points of PSWFs in the frequency domain. On this basis, the complex domain mapping and FFT/IFFT signal processing framework are introduced, and the PSWFs frequency domain modulation and demodulation method are proposed. The proposed method extends PSWFs signal processing from time domain to frequency domain, providing a possibility for exploring and studying the application of PSWFs signal to 5G, beyond 5G which use frequency domain signal processing. Theory and numerical analysis show that, compared with the time domain modulation, the proposed method can reduces the complexity of the algorithm from O(2Qg²) to O(g²+glog₂g) without changing the system spectral efficiency, system error performance, modulation signal energy aggregation, and peak-to-average power ratio.
- Prolate Spheroidal Wave Functions (PSWFs),
- Frequency domain modulation,
- FFT/IFFT frame,
- Frequency sampling

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References(14)

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