A Post-Processing Channel Estimation Method For DCO-OFDM Visible Light Communication

被引：0
|
作者：
Xiang Yang [1 ]
Zhang Min [1 ]
Tang Xiongyan [1 ]
Wu Jian [1 ]
Han Dahai [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
来源：
PROCEEDINGS OF THE 2012 8TH INTERNATIONAL SYMPOSIUM ON COMMUNICATION SYSTEMS, NETWORKS & DIGITAL SIGNAL PROCESSING (CSNDSP) | 2012年
关键词：
VLC DFT OFDM channel estimation; WIRELESS OPTICAL CHANNEL;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we analyze the channel estimation technique for OFDM (orthogonal frequency division multiplexing) used in VLC (Visible Light Communication system). A Post-Processing DFT (Discrete Fourier Transformation) channel estimation method was proposed to improve the system performance by eliminating the noise outside the maximum channel delay. After linear interpolation, the channel estimation is transformed into time domain by DFT and truncate according to the maximum channel delay, and then goes back to frequency domain. LS (Least Square) algorithm and comb-type pilot is used in the simulation to validate the effectiveness of this DFT-based post-processing channel estimation method, and the BER performance is demonstrated with QPSK, 16-QAM and 64-QAM constellation order, also, different pilot number is considered.
引用
收藏
页数：4
相关论文
共 50 条
  • [21] Optimal Symmetric Double-sided Signal Clipping in DCO-OFDM Visible Light Communication
    Yu, Meishuang
    Zhang, Zaichen
    Wu, Liang
    Dang, Jian
    2014 SIXTH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS AND SIGNAL PROCESSING (WCSP), 2014,
  • [22] On the performance of delta sigma modulators for DCO-OFDM based NOMA visible light communication systems
    Vappangi, Suseela
    Deepa, T.
    Mani, V. V.
    Bharathiraja, N.
    OPTICS AND LASER TECHNOLOGY, 2023, 167
  • [23] Joint Offset and Power Optimization for Visible Light DCO-OFDM Systems
    Ling, Xintong
    Wang, Jiaheng
    Liang, Xiao
    Ding, Zhi
    Zhao, Chunming
    2015 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM), 2015,
  • [24] An optimal scaling scheme for DCO-OFDM based visible light communications
    Jiang, Rui
    Wang, Qi
    Wang, Fang
    Dai, Linglong
    Wang, Zhaocheng
    OPTICS COMMUNICATIONS, 2015, 356 : 136 - 140
  • [25] Location Estimation for DCO-OFDM based VLC in Realistic Indoor Channel
    Kalikulov, Nurzhan
    Dautov, Kassen
    Kizilirmak, Refik Caglar
    2017 11TH IEEE INTERNATIONAL CONFERENCE ON APPLICATION OF INFORMATION AND COMMUNICATION TECHNOLOGIES (AICT 2017), 2017,
  • [26] M-CSK and M-QAM Modulated DCO-OFDM for Visible Light Communication Systems
    Aykiri, Gazihan
    Avci, Busra
    Ozen, Ali
    2022 30TH SIGNAL PROCESSING AND COMMUNICATIONS APPLICATIONS CONFERENCE, SIU, 2022,
  • [27] Modulation Classification between DCO-OFDM and Flip-OFDM for Visible Light Communications
    Saengudomlert, Poompat
    Buddhacharya, Sarbagya
    2022 37TH INTERNATIONAL TECHNICAL CONFERENCE ON CIRCUITS/SYSTEMS, COMPUTERS AND COMMUNICATIONS (ITC-CSCC 2022), 2022, : 900 - 903
  • [28] Visible DCO-OFDM System Based on LWT
    Zhao Li
    Dong Hanghang
    Zhang Feng
    ACTA PHOTONICA SINICA, 2021, 50 (05)
  • [29] Spectral and Energy Efficiency of DCO-OFDM in Visible Light Communication Systems With Finite-Alphabet Inputs
    Yang, Ruixin
    Ma, Shuai
    Xu, Zihan
    Li, Hang
    Liu, Xiaodong
    Ling, Xintong
    Deng, Xiong
    Zhang, Xun
    Li, Shiyin
    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2022, 21 (08) : 6018 - 6032
  • [30] PAPR Reduction for DCO-OFDM Visible Light Communications via Semidefinite Relaxation
    Zhang, Hua
    Yuan, Ying
    Xu, Wei
    IEEE PHOTONICS TECHNOLOGY LETTERS, 2014, 26 (17) : 1718 - 1721
12345