Quantum Chaotic Extended Sequence Algorithm for 5G F-OFDM

doi:10.13190/j.jbupt.2018-058

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2019, Vol. 42 ›› Issue (2): 90-94.doi: 10.13190/j.jbupt.2018-058

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Quantum Chaotic Extended Sequence Algorithm for 5G F-OFDM

MA Ying-jie, ZHAO Geng, FAN Xiao-hong, ZHANG Xin-ran, GAO Yuan

Department of Electronic Communication Engineering, Beijing Electronic Science and Technology Institute, Beijing 100070, China

Received:2018-04-04 Online:2019-04-28 Published:2019-04-09

Abstract

Abstract: High peak to average power ratio (PAPR) is a main problem of the fifth generation of mobile communications system(5G) filtered-orthogonal frequency division multiplexing (F-OFDM) systems. Aiming at the shortcomings of traditional selective mapping algorithm, such as limited number of candidate sequences, the quantum chaotic extended sequence algorithm was proposed to solve the high PAPR problem of 5G F-OFDM systems. The original signal was divided into real part signal and imaginary part signal by segmentation method, which were respectively multiplied the quantum logistic chaotic map. The PAPR was calculated by linear superposition of real sequences and the imaginary part candidate, and the minimum PAPR was selected for transmission. The simulation results show that the proposed algorithm reduces the PAPR of 5G F-OFDM system, increases the number of candidate signals and reduces the computational complexity. The proposed scheme has a broad application prospect in 5G multicarrier modulation technology.

Key words: the fifth generation of mobile communications system, filtered-orthogonal frequency division multiplexing, quantum chaotic extended sequence algorithm, peak to average power ratio, computational complexity

CLC Number:

TN918

MA Ying-jie, ZHAO Geng, FAN Xiao-hong, ZHANG Xin-ran, GAO Yuan. Quantum Chaotic Extended Sequence Algorithm for 5G F-OFDM[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2019, 42(2): 90-94.

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Quantum Chaotic Extended Sequence Algorithm for 5G F-OFDM

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