Channel Parameters Estimation Algorithm Based on the Characteristic Function under Impulse Noise Environment

被引：0
|
作者：
Xu, Zhijiang [1 ]
Wang, Kang [2 ]
Meng, Limin [1 ]
机构：
[1] Zhejiang Univ Technol, Coll Informat Engn, Hangzhou 310023, Zhejiang, Peoples R China
[2] Zhejiang Police Coll, Dept Comp & Informat Technol, Hangzhou 310053, Zhejiang, Peoples R China
来源：
RADIOENGINEERING | 2013年 / 22卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Parameter estimation; impulsive noise; symmetric alpha stable distribution; characteristic function;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Under communication environments, such as wireless sensor networks, the noise observed usually exhibits impulsive as well as Gaussian characteristics. In the initialization of channel iterative decoder, such as low density parity check codes, it is required in advance to estimate the channel parameters to obtain the prior information from the received signals. In this paper, a blind channel parameters estimator under impulsive noise environment is proposed, which is based on the empirical characteristic function in MPSK/MQAM higher-order modulation system. Simulation results show that for various MPSK/MQAM modulations, the estimator can obtain a more accurate unbiased estimation even though we do not know which kind of higher-order modulation is used.
引用
收藏
页码：1034 / 1040
页数：7
相关论文
共 50 条
  • [31] Statistical UWB channel model parameters estimation based on SAGE algorithm
    Saadane, Rachid
    Hayar, Aawatif Menouni
    Hofstetter, Helmut
    Aboutajdine, Driss
    2007 SECOND INTERNATIONAL CONFERENCE IN COMMUNICATIONS AND NETWORKING IN CHINA, VOLS 1 AND 2, 2007, : 807 - +
  • [32] DOA Estimation of Noncircular Signals Under Impulsive Noise Using a Novel Empirical Characteristic Function-Based MUSIC
    Mohsen Asghari
    Mohammad Zareinejad
    Seyed Mehdi Rezaei
    Hamidreza Amindavar
    Circuits, Systems, and Signal Processing, 2023, 42 : 3706 - 3743
  • [33] DOA Estimation of Noncircular Signals Under Impulsive Noise Using a Novel Empirical Characteristic Function-Based MUSIC
    Asghari, Mohsen
    Zareinejad, Mohammad
    Rezaei, Seyed Mehdi
    Amindavar, Hamidreza
    CIRCUITS SYSTEMS AND SIGNAL PROCESSING, 2023, 42 (06) : 3706 - 3743
  • [34] Stable Sparse Channel Estimation Algorithm under Non-Gaussian Noise Environments
    Gui, Guan
    Xu, Li
    Shimoi, Nobuhiro
    2015 21ST ASIA-PACIFIC CONFERENCE ON COMMUNICATIONS (APCC), 2015, : 561 - 565
  • [35] Estimation of the channel impulse response length and the noise variance for OFDM systems
    Nguyen, VD
    Kuchenbecker, HP
    Pätzold, M
    VTC2005-SPRING: 2005 IEEE 61ST VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, PROCEEDINGS, 2005, : 429 - 433
  • [36] Parameter Estimation of Target in Interference Localization Background in Impulse Noise Environment
    Li, Li
    Shi, Xiaofei
    PROCEEDINGS OF THE 2016 INTERNATIONAL CONFERENCE ON AUTOMATIC CONTROL AND INFORMATION ENGINEERING (ICACIE), 2016, 64 : 28 - 31
  • [37] MEP-Based Channel Estimation under Complex Communication Environment
    Hu, Zhengyang
    Xue, Jiang
    Meng, Deyu
    Zhao, Qian
    Xu, Zongben
    ICC 2020 - 2020 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC), 2020,
  • [38] A Novel Azimuth Channel Errors Estimation Algorithm Based on Characteristic Clusters Statistical Treatment
    Yang, Wensen
    Tao, Ran
    Huan, Hao
    Feng, Jing
    Chen, Longyong
    Xu, Yihao
    Yang, Junhua
    REMOTE SENSING, 2025, 17 (05)
  • [39] An algorithm for the Wigner distribution based instantaneous frequency estimation in a high noise environment
    Djurovic, I
    Stankovic, LA
    SIGNAL PROCESSING, 2004, 84 (03) : 631 - 643
  • [40] Modified LMS algorithm for unbiased impulse response estimation in nonstationary noise
    So, HC
    ELECTRONICS LETTERS, 1999, 35 (10) : 791 - 792
12345