基于频域迭代判决反馈均衡的低复杂度FTN接收机

曾娟; 王颖; 李晓娜; 王中方; 汪永明

doi:10.11959/j.issn.1000-436x.2017052

您当前的位置：

首页 >

文章列表页 >

基于频域迭代判决反馈均衡的低复杂度FTN接收机

学术通信 | 更新时间：2024-06-05

- 基于频域迭代判决反馈均衡的低复杂度FTN接收机
- Low-complexity FTN receivers based on frequency domain iterative decision feedback equalization
- 通信学报 2017年38卷第4期页码：190-198
- 作者机构：
  
  1. 中国科学院信息工程研究所，北京 100093
  2. 中国科学院大学，北京 100049
- 作者简介：
  
  [ "曾娟（1991-），女，湖北广水人，中国科学院信息工程研究所硕士生，主要研究方向为通信与信息系统。" ]
  [ "王颖（1987-），女，河南信阳人，博士，中国科学院信息工程研究所助理研究员，主要研究方向为5G新型编码调制、无线物理层安全。" ]
  [ "李晓娜（1986-），女，辽宁沈阳人，中国科学院信息工程研究所工程师，主要研究方向为移动通信、信息安全。" ]
  [ "王中方（1987-），男，河南南阳人，中国科学院信息工程研究所工程师，主要研究方向为移动通信系统物理层安全。" ]
  [ "汪永明（1968-），男，湖北广水人，博士，中国科学院信息工程研究所高级工程师、博士生导师，主要研究方向为通信系统与安全。" ]
- 基金信息：
  
  国家自然科学基金资助项目(61501459)
- DOI：10.11959/j.issn.1000-436x.2017052
  中图分类号： TN911.23
- 网络出版日期：2017-04，
  
  纸质出版日期：2017-04-25
- 稿件说明：
移动端阅览
曾娟, 王颖, 李晓娜, 等. 基于频域迭代判决反馈均衡的低复杂度FTN接收机[J]. 通信学报, 2017,38(4):190-198.

Juan ZENG, Ying WANG, Xiao-na LI, et al. Low-complexity FTN receivers based on frequency domain iterative decision feedback equalization[J]. Journal on communications, 2017, 38(4): 190-198.
曾娟, 王颖, 李晓娜, 等. 基于频域迭代判决反馈均衡的低复杂度FTN接收机[J]. 通信学报, 2017,38(4):190-198. DOI： 10.11959/j.issn.1000-436x.2017052.

Juan ZENG, Ying WANG, Xiao-na LI, et al. Low-complexity FTN receivers based on frequency domain iterative decision feedback equalization[J]. Journal on communications, 2017, 38(4): 190-198. DOI： 10.11959/j.issn.1000-436x.2017052.

摘要

超Nyquist（FTN

faster-than-Nyquist）信号传输能在不降低系统可靠性的情况下，提高系统的有效性，但其引入了严重的码间串扰，导致最佳接收的复杂度非常高。迭代块判决反馈均衡器（IBDFE

iterative block decision feedback equalizer）能以较低的复杂度达到与最佳接收相近的性能，有效降低了FTN接收机的复杂度，但其复杂度仍能进一步降低。因此，在IBDFE的基础上，简化了前馈和反馈滤波器的设计，为FTN通信系统提出了一种降低复杂度的IBDFE（RC-IBDFE

reduced-complexity IBDFE）。当加速因子为τ={0.8

0.7}时，数值结果和分析表明，与IBDFE相比，RC-IBDFE的顽健性更好，复杂度降低了{45.7%

25%}，当误比特率为10

-5

时的性能增益为{0.605 4

0.193 6} dB；与已有的低复杂度IBDFE（LC-IBDFE

low-complexity IBDFE）相比，RC-IBDFE的顽健性更好，复杂度降低了{13.6%

-25.8%}，当误比特率为10

-5

时的性能增益为{0.289 7

0.531 2} dB。

Abstract

Faster-than-Nyquist (FTN) signaling can improve the system effectiveness without reducing the system reliability

but the fierce inter-symbol interference (ISI) introduced by it may cause that the complexity of the optimal receiver is intolerable.An effective low-complexity FTN receiver is iterative block decision feedback equalizer (IBDFE)

which can achieve performance close to the optimal receiver with much lower complexity

but its complexity can be further reduced.Therefore

a reduced-complexity IBDFE (RC-IBDFE) was proposed for FTN communication systems

which was based on IBDFE

but introduced a simplified method to design the feedforward and fe

edback filters.When packing factor is τ={0.8

0.7}

numerical results and analysis indicate that

compared with IBDFE

RC-IBDFE has stronger robustness

its complexity is reduced by {45.7%

25%}

and its performance gain is {0.605 4

0.193 6} dB when the bit error rate (BER) is 10

-5

.Compared with the existing low-complexity IBDFE (LC-IBDFE)

RC-IBDFE has stronger robustness

its complexity is reduced by {13.6%

-25.8%}

and its performance gain is {0.289 7

0.531 2} dB when the BER is 10

-5

关键词

Keywords

references

MAZO J E . Faster-than-Nyquist signaling [J ] . The Bell System Technical Journal , 1975 , 54 ( 8 ): 1451 - 1462 .

ANDERSON J B , RUSEK F , OWALL V . Faster-than-Nyquist signaling [J ] . Proceedings of the IEEE , 2013 , 101 ( 8 ): 1817 - 1830 .

RUSEK F . Partial response and faster-than-Nyquist signaling [D ] . Lund University , 2007 .

RUSEK F , ANDERSON J B . Multistream faster than Nyquist signaling [J ] . IEEE Transactions on Communications , 2009 , 57 ( 5 ): 1329 - 1340 .

PRLJA A , ANDERSON J B . Reduced-complexity receivers for strongly narrowband intersymbol interference introduced by fasterthan-Nyquist signaling [J ] . IEEE Transactions on Communications , 2012 , 60 ( 9 ): 2591 - 2601 .

AL-DHAHIR N , UYSAL M , MHEIDAT H . Single-carrier frequency domain equalization [J ] . IEEE Signal Processing Magazine , 2008 , 25 ( 5 ): 37 - 56 .

SUGIURA S . Frequency-domain equalization of faster-than-Nyquist signaling [J ] . IEEE Wireless Communications Letters , 2013 , 2 ( 5 ): 555 - 558 .

BENVENUTO N , DINIS R , FALCONER D , et al . Single carrier modulation with nonlinear frequency domain equalization:an idea whose time has come-again [J ] . Proceedings of the IEEE , 2010 , 98 ( 1 ): 69 - 96 .

BENVENUTO N , TOMASIN S . Iterative design and detection of a DFE in the frequency domain [J ] . IEEE Transactions on Communications , 2005 , 53 ( 11 ): 1867 - 1875 .

TOMASIN S , BENVENUTO N . Fractionally spaced non-linear equalization of faster than Nyquist signals [C ] // 22nd European Signal Processing Conference (EUSIPCO) . Portugal,Lisbon , 2014 : 1861 - 1865 .

SEN P , AKTAS T , YILMAZ A O . A low-complexity graph-based LMMSE receiver designed for colored noise induced by FTN- signaling [C ] // Wireless Communications and Networking Conference (WCNC) . Istanbul,Turkey , 2014 : 642 - 647 .

FUKUMOTO H , HAYASHI K . Overlap frequency domain equalization for faster-than-Nyquist signaling [J ] . Mathematics , 2015 ( 4 ): 1211 - 1218 .

PROAKIS J G . Digital communications (5th edition) [M ] . New York : McGraw-HillPress , 2007 .

ZHANG C , WANG Z , PAN C , et al . Low-complexity iterative frequency domain decision feedback equalization [J ] . IEEE Transactions on Vehicular Technology , 2011 , 60 ( 3 ): 1295 - 1301 .

浏览量

750

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

具有系数相关性的可变分数时延滤波器设计方法

基于深度学习的SM4密码算法新型区分器

6G通信感知一体化网络的感知算法研究与优化

系统极化码低复杂度编码优化方案

分组密码TWIS的三子集中间相遇攻击