A Novel Linear Interpolated Channel Estimation Method in Non-Continuous Subcarrier Mapping

In this paper we propose a novel linear interpolated channel estimation method in non-continuous subcarrier mapping between contiguous pilot symbols. The proposed method completes channel interpolation in the time domain instead of in the frequency domain to avoid the discontinuity of the channel frequency response when non-continuous subcarrier mapping is adopted. The simulation results show that our proposed method can overcome the drawbacks of interpolation in the frequency domain in non-continuous subcarrier mapping and can significantly improve the system performance in various mobile environments.