The Open Research Fund of National Mobile Communications Research Laboratory of Southeast University(No.2013D02);the Fundamental Research Funds for the Central Universities(No.30920130122004);the National Natural Science Foundation of China(No.61271230,61472190)
A pilot pattern across two orthogonal frequency division multiplexing OFDM symbols with a special structure is designed for the channel estimation of OFDM systems with inphase and quadrature IQ imbalances at the recei...