Pilot-Aided Channel Estimation for Systems with Virtual Carriers

  title={Pilot-Aided Channel Estimation for Systems with Virtual Carriers},
  author={Li Huang and George Mathew and Jan W. M. Bergmans},
  journal={2006 IEEE International Conference on Communications},
In this paper, we investigate various frequency-domain channel estimators for orthogonal frequency division multiplexing (OFDM) systems with virtual carriers (VCs). As conventional estimators cannot estimate the channel transfer function (CTF) at VCs, DFT-based estimators are not directly applicable in OFDM systems with VCs. To circumvent this, we present least squares (LS), generalized linear minimum mean square error (GLMMSE) and generalized singular value decomposition (GSVD) methods to… CONTINUE READING
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