A DFT-based Channel Estimation for Mobile Communication Systems without Priori Channel Delay Spread Information

被引：0
|
作者：
Yu, Hai [1 ]
Wang, Jianxin [1 ]
Yang, Chunliang [1 ]
Zou, Jun [1 ]
Wang, Mao [1 ]
Shu, Feng [1 ]
Li, Jun [1 ]
机构：
[1] Nan Nanjing Univ Sci & Technol, Sch Elect & Opt Engn, Nan Jing, Peoples R China
来源：
2016 19TH INTERNATIONAL SYMPOSIUM ON WIRELESS PERSONAL MULTIMEDIA COMMUNICATIONS (WPMC) | 2016年
关键词：
channel estimation; DFT; noise variance; MULTIPATH CHANNELS; OFDM SYSTEMS;
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：
Channel estimation is one of the most important parts in current mobile communication systems. Among the huge contributions in channel estimation studies, the discrete Fourier transform (DFT)-based channel estimation has attracted lots of interests since it can not only be easily implemented but also have acceptable performance in practical systems. In this paper, we propose an improved DFT-based channel estimation scheme that tries to clean the reference signals in the time domain before being used for interpolation using the estimated noise variance from reference signals on multiple orthogonal frequency division multiplexing (OFDM) symbols via the property of DFT. The proposed channel estimation scheme does not need any priori channel information. We validate the proposed channel estimation scheme in various channel models via simulations and comparison with conventional channel estimation schemes.
引用
收藏
页数：4
相关论文
共 50 条
  • [1] DFT-based Channel Estimation Techniques for Massive MIMO Systems
    Al-Salihi, Hayder
    Nakhai, Mohammad Reza
    Tuan Anh Le
    2018 25TH INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS (ICT), 2018, : 383 - 387
  • [2] Improved DFT-based Channel Estimation for FBMC/OQAM Wireless Communication Systems
    Xiao Lin
    Xu Pingping
    Liu Ying
    2016 16TH INTERNATIONAL SYMPOSIUM ON COMMUNICATIONS AND INFORMATION TECHNOLOGIES (ISCIT), 2016, : 68 - 72
  • [3] DFT-based Adaptive Channel Estimation for OFDM Systems
    Zhu, Huijie
    Ge, Yizhou
    Chen, Xiaofei
    2015 IEEE 16TH INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY (ICCT), 2015, : 515 - 517
  • [4] DFT-Based Channel Estimation with Symmetric Extension for OFDMA Systems
    Yi Wang
    Lihua Li
    Ping Zhang
    Zemin Liu
    EURASIP Journal on Wireless Communications and Networking, 2009
  • [5] DFT-Based Channel Estimator for OFDM Systems with Leakage Estimation
    Xiong, Xin
    Jiang, Bin
    Gao, Xiqi
    You, Xiaohu
    IEEE COMMUNICATIONS LETTERS, 2013, 17 (08) : 1592 - 1595
  • [6] DFT-Based Channel Estimation for Holographic MIMO
    D'Amico, Antonio A.
    Bacci, Giacomo
    Sanguinetti, Luca
    FIFTY-SEVENTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, IEEECONF, 2023, : 353 - 357
  • [7] Improved DFT-Based Channel Estimation for OFDM Systems with Null Subcarriers
    Zhang, Liang
    Hong, Zhihong
    Thibault, Louis
    2009 IEEE 70TH VEHICULAR TECHNOLOGY CONFERENCE FALL, VOLS 1-4, 2009, : 597 - 601
  • [8] Symmetry Extension DFT-based Channel Estimation for LTE Downlink
    Bao, Xiyan
    Huang, Qing
    2011 INTERNATIONAL CONFERENCE ON COMPUTER SCIENCE AND NETWORK TECHNOLOGY (ICCSNT), VOLS 1-4, 2012, : 1082 - 1086
  • [9] Improved DFT-based Channel Estimation in OFDM Systems Based on Phase Compensation
    Jin, Maozhu
    Lei, Xia
    Lin, Shiqing
    APPLIED MATHEMATICS & INFORMATION SCIENCES, 2012, 6 (03): : 629 - 638
  • [10] Windowed DFT-Based OFDM Channel Estimation by Adding Virtual Channel Frequency Response
    Hsu, Hao-Han
    Chen, Chih-Wei
    Chuang, Gene C. H.
    2009 5TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-8, 2009, : 875 - +
12345