电子学报 ›› 2020, Vol. 48 ›› Issue (1): 189-197.DOI: 10.3969/j.issn.0372-2112.2020.01.023

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超奈奎斯特传输技术:现状与挑战

李双洋1,2, 白宝明1, 马啸3   

  1. 1. 西安电子科技大学综合业务网理论及关键技术国家重点实验室, 陕西西安 710071;
    2. 通信网信息传输与分发技术重点实验室, 河北石家庄 050081;
    3. 中山大学数据科学与计算机学院, 广东广州 510006
  • 收稿日期:2018-10-18 修回日期:2019-09-14 出版日期:2020-01-25
    • 通讯作者:
    • 白宝明
    • 作者简介:
    • 李双洋 男,1991年生,辽宁沈阳人.西安电子科技大学博士研究生,主要研究方向为带宽有效调制技术、均衡算法以及应用信息论.E-mail:xd09lsy@sina.com;马啸 男,1968年生,河南焦作人.博士,中山大学教授,主要研究方向为信息理论与信道编码的应用基础研究.E-mail:maxiao@mail.sysu.edu.cn
    • 基金资助:
    • 国家自然科学基金面上项目 (No.61771364); 陕西省重点研发计划 (No.2018ZDCXL-GY-04-05); 通信网信息传输与分发技术重点实验室项目 (No.614210403070717)

Faster-than-Nyquist Signaling: Status and Challenges

LI Shuang-yang1,2, BAI Bao-ming1, MA Xiao3   

  1. 1. State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an, Shaanxi 710071, China;
    2. Science and Technology on Communication Networks Laboratory, Shijiazhuang, Hebei 050081, China;
    3. School of Data and Computer Science, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China
  • Received:2018-10-18 Revised:2019-09-14 Online:2020-01-25 Published:2020-01-25
    • Corresponding author:
    • BAI Bao-ming
    • Supported by:
    • National Natural Science Foundation of China (No.61771364); Key Research and Development Project of Shaanxi Province (No.2018ZDCXL-GY-04-05); Program of Key Laboratory of Transmission and Distribution Technology of Communication Network Information (No.614210403070717)

摘要: 超奈奎斯特传输技术作为一种非正交传输技术,近年来受到了广泛的关注.不同于传统的正交传输信号,超奈奎斯特信号的符号传输速率因为超过了奈奎斯特无码间串扰速率而带来了不可避免的符号间干扰,然而这一传输方式也被证明可以带来更高的信道容量.因此超奈奎斯特技术成为了一种具有高频谱利用率的新型传输方法,也为带宽受限的通信场景带来了新的解决方案,并且其在卫星信道以及第五代移动通信的回程链路中的应用成为了研究热点.本文对超奈奎斯特传输的概念与原理、容量计算、实现方式、检测方法以及性能与应用做了详细的总结并对其目前的技术难点进行了讨论.

关键词: 超奈奎斯特传输, 信道容量, 检测方法

Abstract: Faster-than-Nyquist (FTN) signaling,as a non-orthogonal signaling format,has been attracting a lot of attention recently. FTN signaling has a symbol rate that is higher than the Nyquist rate, which causes intersymbol interference inevitably. However, this signaling method has been proved to bring higher channel capacity. Therefore, FTN signaling has become a new bandwidth-efficient modulation method which offers a promising solution to the communication scenario with scarce bandwidth. Furthermore, faster-than-Nyquist signaling has also become a hot topic in the research of satellite communication and backhauling technique in 5G communication standard. This paper provides a summary of FTN signaling in terms of its concept and theory, capacity, implementation, detection, as well as performance and applications, respectively. Some discussions of current research difficulties are also given in the paper.

Key words: faster-than-Nyquist signaling, channel capacity, detection method

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