中国邮电高校学报(英文) ›› 2013, Vol. 20 ›› Issue (3): 37-42.doi: 10.1016/S1005-8885(13)60046-1

• Wireless • 上一篇    下一篇

Performance analysis of broadband satellite communication system based on OFDM/TDM

田清华1,张琦1,陶滢2,刘乃金2,忻向军3,徐大雄2   

  1. 1. Institute of Optical Communication and Optoelectronics, Beijing University of Posts and Telecommunications, Beijing 100876, China 2. School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China 3. Institute of Telecommunication Satellite, China Academy of Space Technology, Beijing 100094, China
  • 收稿日期:2013-03-25 修回日期:2013-05-30 出版日期:2013-06-30 发布日期:2013-06-26
  • 通讯作者: 田清华 E-mail:tianqh@bupt.edu.cn
  • 基金资助:

    This work was supported by the National Natural Science Foundation of China (61271281), the National Hi-Tech Research and Development Program of China (2013AA013301, 2013AA013303, 2012AA01A504), the Fundamental Research Funds for the Central Universities (24820122012PTB0004, 24820132013RC0201) and the International Science & Technology Cooperation Program of China (2012DFA11410).

Performance analysis of broadband satellite communication system based on OFDM/TDM

  1. 1. Institute of Optical Communication and Optoelectronics, Beijing University of Posts and Telecommunications, Beijing 100876, China 2. School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China 3. Institute of Telecommunication Satellite, China Academy of Space Technology, Beijing 100094, China
  • Received:2013-03-25 Revised:2013-05-30 Online:2013-06-30 Published:2013-06-26
  • Contact: Qing-Hua TIAN E-mail:tianqh@bupt.edu.cn
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (61271281), the National Hi-Tech Research and Development Program of China (2013AA013301, 2013AA013303, 2012AA01A504), the Fundamental Research Funds for the Central Universities (24820122012PTB0004, 24820132013RC0201) and the International Science & Technology Cooperation Program of China (2012DFA11410).

摘要:

Orthogonal frequency division multiplexing (OFDM) is attracting more attention for its capability of high speed transmission. However, the OFDM possesses an obvious shortage in its high ratio of the peak power to the average power (PAPR), which has become the main issue holding it back to be applied to the broadband satellite communication system. OFDM combined with time division multiplexing (TDM), dividing the subcarriers of OFDM into some blocks in time tune, can decrease the high PAPR of OFDM. Meanwhile, the advantages of OFDM can be preserved. In this paper, OFDM/TDM is applied to the broadband satellite communication system. This paper theoretically analyses OFDM/TDM system model as well as its restraining effect on PAPR, and proposes frequency domain multiplexing-pilot (FDM-Pilot) channel estimation algorithm. Simulation results show OFDM/TDM in broadband satellite communication system has approving performance and decreased the PAPR.

关键词:

OFDM/TDM, broadband satellite communication system, PAPR, channel estimation

Abstract:

Orthogonal frequency division multiplexing (OFDM) is attracting more attention for its capability of high speed transmission. However, the OFDM possesses an obvious shortage in its high ratio of the peak power to the average power (PAPR), which has become the main issue holding it back to be applied to the broadband satellite communication system. OFDM combined with time division multiplexing (TDM), dividing the subcarriers of OFDM into some blocks in time tune, can decrease the high PAPR of OFDM. Meanwhile, the advantages of OFDM can be preserved. In this paper, OFDM/TDM is applied to the broadband satellite communication system. This paper theoretically analyses OFDM/TDM system model as well as its restraining effect on PAPR, and proposes frequency domain multiplexing-pilot (FDM-Pilot) channel estimation algorithm. Simulation results show OFDM/TDM in broadband satellite communication system has approving performance and decreased the PAPR.

Key words:

OFDM/TDM, broadband satellite communication system, PAPR, channel estimation

中图分类号: