通信学报 ›› 2020, Vol. 41 ›› Issue (9): 49-58.doi: 10.11959/j.issn.1000-436x.2020171

• 学术论文 • 上一篇    下一篇

基于信道冲激响应不敏感特征的分子通信非相干信号检测

肖利民1,徐向荣1,韦壮焜2,刘圣涵3,刘怡文1()   

  1. 1 北京航空航天大学计算机学院,北京 100191
    2 华威大学工程系,考文垂 CV4 7AL
    3 北京邮电大学信息与通信工程系,北京 100876
  • 修回日期:2020-06-20 出版日期:2020-09-25 发布日期:2020-10-12
  • 作者简介:肖利民(1970- ),男,江西南康人,博士,北京航空航天大学教授,主要研究方向为计算机系统结构、高性能计算、大数据存储、系统安全等|徐向荣(1998- ),男,安徽六安人,北京航空航天大学博士生,主要研究方向为计算机系统结构、分子通信等|韦壮焜(1993- ),男,北京人,华威大学博士生,主要研究方向为信号处理与检测、分子通信等|刘圣涵(1992- ),男,黑龙江佳木斯人,北京邮电大学博士生,主要研究方向为信号处理与检测、分子通信等|刘怡文(1966- ),女,河南开封人,博士,北京航空航天大学高级工程师,主要研究方向为计算机网络、分子通信、网络安全等
  • 基金资助:
    国家重点研发计划基金资助项目(2017YFB1010000);国家自然科学基金资助项目(61772053)

Channel impulse response insensitive feature for non-coherent signal detection in molecular communication

Limin XIAO1,Xiangrong XU1,Zhuangkun WEI2,Shenghan LIU3,Yiwen LIU1()   

  1. 1 School of Computer Science and Engineering,Beihang University,Beijing 100191,China
    2 School of Engineering,The University of Warwick,Coventry CV4 7AL,UK
    3 School of Information and Communication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China
  • Revised:2020-06-20 Online:2020-09-25 Published:2020-10-12
  • Supported by:
    The National Key Research and Development Program of China(2017YFB1010000);The National Natural Science Foundation of China(61772053)

摘要:

为解决分子通信中由分子扩散带来的码间干扰(ISI)和背景噪声这2个严峻的挑战,采用4种能抵抗ISI的信号特征表示接收信号的瞬态特性,提出了可靠的不依赖于信道冲激响应(CIR)的非相干分子信号检测算法,并设计了自适应阈值计算方法,且给出了误比特率(BER)理论值。仿真结果显示,在同等计算复杂度下所提方案BER比传统方案BER低,因此在计算能力受限的纳米级分子通信系统中具有广泛的应用前景。

关键词: 分子通信, 码间干扰, 非相干检测, 特征提取

Abstract:

To solve the inter-symbol interference (ISI) and background noise challenges of molecular communication via diffusion (MCvD),four ISI-resistant signal-features were deployed,and a reliable non-coherent signal detection algorithm,which was insensitive to different types of molecular channel impulse response (CIR),was proposed.Also,an adaptive decision threshold and theoretical bound of bit error rate (BER) were deduced.Simulation results demonstrate a lower BER of the proposed non-coherent scheme compared to the state-of-the-art schemes in the same order of computational complexity,therefore suggesting its potential applications for future nano-scale MC.

Key words: molecular communication, inter-symbol interference, non-coherent detection, feature extraction

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