Systems Engineering and Electronics ›› 2018, Vol. 40 ›› Issue (6): 1358-1362.doi: 10.3969/j.issn.1001-506X.2018.06.24

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Iterative scatter pilot channel estimation in OQAM/OFDM

XUE Lunsheng1, ZHANG Kai2, CHEN Hang1, QIU Shangfei2   

  1. 1. School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China;
    2. Air and Missile Defense College, Air Force Engineering University, Xi’an 710051, China
  • Online:2018-05-25 Published:2018-06-07

Abstract: To solve the channel estimation problems of offset quadrature amplitude modulation/ orthogonal frequency division multiplexing (OQAM/OFDM) systems, this paper proposes an iterative scatter pilot channel estimation method. Through analysis of the intrinsic imagine interference, we point out the reason of low performance with the traditional scatter pilot channel estimation method. We decrease auxiliary pilot removing the data number which cause the interference to pilot, and use the iterative method to estimate the channel perfor-mance. The simulation results show that the proposed method has a better channel estimation performance when the auxiliary pilot power is the same as average data power.

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