1.   Foschini G J. Layered space-time architecture for wireless communications in a fading environment when using multi-element antennas. Bell Laboratories Technical Journal, 1996, 1(2): 41-59

   2.   Foschini G J, Gans M J. On limits of wireless communications in a fading environment when using multi-element antennas. Wireless Personal Communications, 1998, 6(3): 311-335

   3.   Cimini L Jr. Analysis and simulation of a digital mobile channel using orthogonal frequency division multiplexing. IEEE Transactions on Communications, 1985, 33(7): 665-675

   4.   Li Y, Seshadri N, Ariyavisitakul S. Channel estimation for OFDM systems with transmitter diversity in mobile wireless channels. IEEE Journal on Selected Areas in Communications, 1999, 17(3): 461-471

   5.   Barhumi I. Leus G. Moonen M. Optimal training design for MIMO OFDM systems in mobile wireless channels. IEEE Transactions on Signal Processing, 2003, 51(6): 1615-1624

   6.   Hu D, Yang L X, Shi Y H, et al. Optimal pilot sequence design for channel estimation in MIMO OFDM systems. IEEE Communications Letters, 2006, 10(1): 1-3

   7.   Coleri S, Ergen M, Puri A, et al. A study of channel estimation in OFDM systems. Proceedings of the 56th Vehicular Technology Conference (VTC-Fall’02): Vol 2, Sep 24-28, 2002, Vancouver, Canada. Piscataway NJ, USA: IEEE, 2002: 894-898

   8.   Coleri S, Ergen M, Bahai A. Channel estimation techniques based on pilot arrangement in OFDM systems. IEEE Transactions on Broadcasting, 2002, 48(9): 223-229

   9.   Negi R, Cioffi J. Pilot tone selection for channel estimation in a mobile OFDM system. IEEE Transactions on Consumer Electronics, 1998, 44(3): 1122-1128

10.   Yeh C S, Lin Y. Channel estimation using pilot tones in OFDM systems. IEEE Transactions on Broadcasting, 1999, 45(4): 400-409 

11.   Jakes W C. Microwave mobile communications. New York, NY, USA: John Wiley and Sons, 1974