降低滤波器组多载波信号峰均比的边信息嵌入选择性映射方法

doi:10.11772/j.issn.1001-9081.2020081346

计算机应用 ›› 2021, Vol. 41 ›› Issue (5): 1425-1431.DOI: 10.11772/j.issn.1001-9081.2020081346

所属专题：网络与通信

降低滤波器组多载波信号峰均比的边信息嵌入选择性映射方法

夏玉杰^1,2, 时永鹏^1,2, 高雅^1,2, 孙鹏³

1. 河南省电子商务大数据处理与分析重点实验室(洛阳师范学院), 河南洛阳 471934;
2. 洛阳师范学院物理与电子信息学院, 河南洛阳 471934;
3. 郑州大学信息工程学院, 郑州 450001

收稿日期:2020-09-02 修回日期:2020-10-12 出版日期:2021-05-10 发布日期:2020-11-25
通讯作者: 夏玉杰
作者简介:夏玉杰(1978-),男,河南洛阳人,副教授,博士,主要研究方向:通信信号处理、移动边缘计算;时永鹏(1978-),男,河南郑州人,讲师,博士,主要研究方向:空天地一体化网络、云计算;高雅(1985-),女,江苏淮安人,讲师,博士,主要研究方向:5G通信、物联网;孙鹏(1990-),男,河南沈丘人,讲师,博士,主要研究方向:信号与信息处理、消息传递算法。
基金资助:
国家自然科学基金资助项目（61901417）；河南省科技攻关项目（202102210120，192102210247）；河南省高等学校青年骨干教师培养计划项目（2018GGJS126）。

Selected mapping method with embedded side information to reduce PAPR of FBMC signals

XIA Yujie^1,2, SHI Yongpeng^1,2, GAO Ya^1,2, SUN Peng³

1. Henan Key Laboratory for Big Data Processing and Analytics of Electronic Commerce(Luoyang Normal University), Luoyang Henan 471934, China;
2. College of Physical and Electronic Information, Luoyang Normal University, Luoyang Henan 471934, China;
3. School of Information Engineering, Zhengzhou University, Zhengzhou Henan 450001, China

Received:2020-09-02 Revised:2020-10-12 Online:2021-05-10 Published:2020-11-25
Supported by:
This work is partially supported by the National Natural Science Foundation of China (61901417), the Key Scientific and Technological Project of Henan Province (202102210120, 192102210247),the Program of Young Backbone Teachers in Higher Education Institutions of Henan Province (2018GGJS126).

摘要/Abstract

摘要： 针对现有选择性映射（SLM）方法抑制滤波器组多载波（FBMC）信号峰均比（PAPR）的性能不佳及边信息错误率（SIER）高的问题，提出了一种边信息（SI）嵌入的SLM方法来抑制PAPR。在发送端，设计了一组嵌入SI的相位旋转矢量，并将相位旋转矢量同发送数据块相乘产生备选数据块；利用备选数据块的实部和虚部分量的逆离散傅里叶变换（IDFT）输出，设计了基于循环时移的候选FBMC信号，并选择具有最小PAPR的候选信号进行发送。在接收端，利用SI子载波数据的旋转相位不同提出了与发送符号调制阶数无关的低复杂度SI检测器。仿真结果表明，所提方法在发送端能够有效降低FBMC信号的PAPR，在接收端具有良好的SI检测和误比特率（BER）性能。

关键词: 峰均比, 选择性映射, 滤波器组多载波, 偏移正交幅度调制, 边信息

Abstract: To solve the problems of the poor reduction performance of Filter Bank MultiCarrier (FBMC) signals' Peak-to-Average Power Ratio (PAPR) and the high Side Information Error Rate (SIER) of the existing Selected Mapping (SLM) method to reduce PAPR signals, an SLM method with embedded Side Information (SI) was presented to reduce PAPR. At the transmitter, a group of phase rotation vectors with embedded SI were designed, and the candidate data blocks were generated by multiplying the phase rotation vectors with the transmitting data blocks. By using the outputs of Inverse Discrete Fourier Transform (IDFT) of the real and imaginary components of the candidate data blocks, the candidate FBMC signals based on cyclic time shift were designed and the candidate signal with the lowest PAPR was selected and transmitted. At the receiver, by using the difference between the phase rotations of the SI subcarrier data, a low-complexity SI detector unrelated to modulation order of transmitted symbols was proposed. Simulation results show that the proposed method can effectively reduce the PAPR of FBMC signals at the transmitter and obtain good SI detection and Bit Error Rate (BER) performances at the receiver.

Key words: Peak-to-Average Power Ratio (PAPR), Selected Mapping (SLM), Filter Bank MultiCarrier (FBMC), Offset Quadrature Amplitude Modulation (OQAM), Side Information (SI)

中图分类号:

TN911.7

夏玉杰, 时永鹏, 高雅, 孙鹏. 降低滤波器组多载波信号峰均比的边信息嵌入选择性映射方法[J]. 计算机应用, 2021, 41(5): 1425-1431.

XIA Yujie, SHI Yongpeng, GAO Ya, SUN Peng. Selected mapping method with embedded side information to reduce PAPR of FBMC signals[J]. Journal of Computer Applications, 2021, 41(5): 1425-1431.

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降低滤波器组多载波信号峰均比的边信息嵌入选择性映射方法

Selected mapping method with embedded side information to reduce PAPR of FBMC signals

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