Research on the improved frequency-domain equalization algorithm for OFDM underwater acoustic communication

被引：1
|
作者：
Feng, Chengxu [1 ]
Luo, Yasong [1 ]
Liu, Zhong [1 ]
机构：
[1] College of Electronic Engineering, Naval Univ. of Engineering, Wuhan 430033, China
来源：
Xi'an Dianzi Keji Daxue Xuebao/Journal of Xidian University | 2013年 / 40卷 / 05期
关键词：
The traditional OFDM frequency-domain equalization algorithm depends on the long circular prefix to overcome the bad influences caused by multi-path effects in the underwater acoustic channel. But the redundant long prefix is actually a serious waste of energy and bandwidth in underwater systems; which restrains the OFDM signal's advantages of high channel utilization greatly. Aiming at the defects of the traditional equalization algorithm; this paper brings forward a new frequency-domain equalization algorithm based on the analysis of the influences caused by multi-path effects and the equalization theory and structure. The results of simulation show that the new algorithm can compensate the multi-path effects efficiently with few circular prefixes and make sure the high-speed and reliability of the underwater acoustic communication system. Finally; based on the amount of computing; a simple algorithm is given;
D O I：
10.3969/j.issn.1001-2400.2013.05.029
中图分类号：
学科分类号：
摘要：
引用
收藏
页码：181 / 187
相关论文
共 50 条
  • [31] On frequency-domain equalization for FBMC-PAM communication systems
    Mattera, Davide
    Tanda, Mario
    Bellanger, Maurice
    2017 INTERNATIONAL SYMPOSIUM ON WIRELESS COMMUNICATION SYSTEMS (ISWCS), 2017, : 222 - 227
  • [32] A low complexity frequency-domain linear equalization algorithm based on pre-processing in OFDM system
    He, Chen
    Xu, Xing-Hui
    Chen, Yong
    Jiang, Ling-Ge
    Tien Tzu Hsueh Pao/Acta Electronica Sinica, 2011, 39 (07): : 1481 - 1485
  • [33] Optimization of Sparse Channel Equalization Algorithm in Underwater Acoustic Communication
    Chen, Fangjiong
    Liu, Mingxing
    Fu, Zhenhua
    Yu, Hua
    Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science), 2022, 50 (12): : 89 - 100
  • [34] Time-Domain Block and Per-Tone Equalization for MIMO–OFDM in Shallow Underwater Acoustic Communication
    Mojtaba Beheshti
    Mohammad Javad Omidi
    Ali Mohammad Doost-Hoseini
    Wireless Personal Communications, 2013, 71 : 1193 - 1215
  • [35] The Research on Improved Companding Transformation for Reducing PAPR in Underwater Acoustic OFDM Communication System
    Wu, Jinqiu
    Qiao, Gang
    Qi, Xiaofei
    DISCRETE DYNAMICS IN NATURE AND SOCIETY, 2016, 2016
  • [36] FREQUENCY-DOMAIN EQUALIZATION OF OFDM SIGNALS OVER FREQUENCY NONSELECTIVE RAYLEIGH FADING CHANNELS
    AHN, J
    LEE, HS
    ELECTRONICS LETTERS, 1993, 29 (16) : 1476 - 1477
  • [37] Time-Varying Channel Equalization in Underwater Acoustic OFDM Communication System
    Zhu A.
    Radioelectronics and Communications Systems, 2020, 63 (08) : 405 - 417
  • [38] Iterative Channel Estimation and Equalization for Underwater Acoustic MIMO SFBC OFDM Communication
    Zhang Lingling
    Han Jing
    Huang Jianguo
    Zhang Qunfei
    2016 IEEE/OES CHINA OCEAN ACOUSTICS SYMPOSIUM (COA), 2016,
  • [39] Frequency-Domain Turbo Equalization with Soft Successive Interference Cancellation for Single Carrier MIMO Underwater Acoustic Communications
    Zhang, Jian
    Zheng, Yahong Rosa
    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2011, 10 (09) : 2872 - 2882
  • [40] ADAPTIVE COMBLINING MULTI-BRANCH FREQUENCY-DOMAIN DETECTOR FOR UNDERWATER ACOUSTIC COOPERATIVE COMMUNICATION
    Liu, Zhi-Yong
    Ding, Bao-Qi
    Wu, Bai-Qian
    Wang, Ying-Hua
    2015 12TH INTERNATIONAL COMPUTER CONFERENCE ON WAVELET ACTIVE MEDIA TECHNOLOGY AND INFORMATION PROCESSING (ICCWAMTIP), 2015, : 26 - 29
12345