Synchronization and Channel Estimation in Cyclic Postfix based OFDM System

被引：0
|
作者：
Kim, Jongkyung [1 ]
Lee, Sangjin [1 ]
Seo, Jongsoo [1 ]
机构：
[1] Yonsei Univ, Dept Elect & Elect Engn, Digital Transmiss Lab, Seoul 120749, South Korea
来源：
2006 IEEE 63RD VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6 | 2006年
关键词：
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：
We propose a new cyclic postfix based orthogonal frequency division multiplexing (OFDM) system. The proposed system shows a superior performance in a symbol time synchronization while achieving a comparable channel estimation performance as compared to a conventional cyclic prefix based OFDM system. In the proposed system, an identical postfix is generated at the end of each OFDM symbol by inserting pilot values amongst the data symbols in a frequency domain and performing Inverse Fast Fourier Transform (IFFT) operation on it. Robust time synchronization is achieved by auto-and cross-correlating the postfix. Also, time or frequency domain channel estimation can be realized by using properly designed postfix according to channel estimation method.
引用
收藏
页码：2028 / 2032
页数：5
相关论文
共 50 条
  • [41] Novel Channel Estimation Method Based on Training Sequence Cyclic Reconstruction for TDS-OFDM System
    Liu, Zhenyu
    Yang, Fang
    Song, Jian
    IEICE TRANSACTIONS ON COMMUNICATIONS, 2011, E94B (07) : 2158 - 2160
  • [42] Reliable blind channel estimation scheme based on cross-correlated cyclic prefix for OFDM system
    Kim, T
    Eo, I
    8TH INTERNATIONAL CONFERENCE ON ADVANCED COMMUNICATION TECHNOLOGY, VOLS 1-3: TOWARD THE ERA OF UBIQUITOUS NETWORKS AND SOCIETIES, 2006, : U3 - U5
  • [43] Blind symbol synchronization in cyclic prefixed OFDM system
    Guo, HG
    Cheng, Q
    Liyana-Pathirana, R
    2005 ASIA-PACIFIC CONFERENCE ON COMMUNICATIONS (APCC), VOLS 1& 2, 2005, : 798 - 801
  • [44] Subspace-Based Blind Channel Estimation for OFDM by Exploiting Cyclic Prefix
    Tseng, Chi-Hsiang
    Cheng, Yu-Chieh
    Chung, Char-Dir
    IEEE WIRELESS COMMUNICATIONS LETTERS, 2013, 2 (06) : 691 - 694
  • [45] Combined Time Synchronization and Channel Estimation for OFDM Based Multi-relay Networks
    Aymen M. Kareem
    Wireless Personal Communications, 2014, 75 : 593 - 600
  • [46] Combined Time Synchronization and Channel Estimation for OFDM Based Multi-relay Networks
    Kareem, Aymen M.
    WIRELESS PERSONAL COMMUNICATIONS, 2014, 75 (01) : 593 - 600
  • [47] Effectiveness of Preamble Based Channel Estimation for OFDM/OQAM System
    Hu, Su
    Wu, Gang
    Yang, Gang
    Li, Shaoqian
    Gao, Bo
    NSWCTC 2009: INTERNATIONAL CONFERENCE ON NETWORKS SECURITY, WIRELESS COMMUNICATIONS AND TRUSTED COMPUTING, VOL 1, PROCEEDINGS, 2009, : 34 - +
  • [48] Channel Estimation Algorithm Based on Deep Learning for OFDM System
    Liang, Tongtong
    Yang, Yongli
    2023 35TH CHINESE CONTROL AND DECISION CONFERENCE, CCDC, 2023, : 3078 - 3081
  • [49] The Channel Estimation of OFDM System Based on DVB-T
    Zhang Huaqing
    Liu Jianbo
    PROCEEDINGS OF THE 2011 INTERNATIONAL CONFERENCE ON INFORMATICS, CYBERNETICS, AND COMPUTER ENGINEERING (ICCE2011), VOL 2: INFORMATION SYSTEMS AND COMPUTER ENGINEERING, 2011, 111 : 315 - 322
  • [50] Channel Estimation in OFDM System Based on LS and FEC Iteration
    Chen, Wenyan
    Huang, Ying
    Zou, Xiang
    Fan, Wenbo
    Guo, Jianxin
    INFORMATION TECHNOLOGY AND INTELLIGENT TRANSPORTATION SYSTEMS (ITITS 2017), 2017, 296 : 160 - 167
12345