JOURNAL OF CHINA UNIVERSITIES OF POSTS AND TELECOM ›› 2017, Vol. 24 ›› Issue (2): 48-56.doi: 10.1016/S1005-8885(17)60198-5

• Wireless • Previous Articles     Next Articles

Blind interference detection and recognition for the multi-carrier signal


  • Received:2016-10-18 Revised:2017-04-11 Online:2017-04-30 Published:2017-04-30
  • Contact: Xing Zhang
  • Supported by:
    the National Natural Science Foundation of China (61501084).

Abstract: For the interference hidden in the expected multi-carrier signal, this paper proposes a novel detection and recognition algorithm. The algorithm cannot only detect the single-carrier interference (SCI) by the high-order cumulant, but also finds the multi-carrier signal based on spectrum character. Besides, the algorithm can distinguish the modulation types of the SCI. The algorithm does not depend on any prior knowledge and data-aided, which is propitious to practical applications. The analysis and simulation results demonstrate that the proposed algorithm is effective.

Key words: orthogonal frequency division multiplexing (OFDM), interference, eigenvalue, recognition