3-Dimensional MMSE Channel Estimation in Multi-antenna OFDM Systems

In this paper, we propose a three-dimensional (3-D) channel estimation (CE) scheme to reduce the mean square error (MSE) in multi-antenna orthogonal frequency division multiplexing (OFDM) systems. Exploiting the channel correlation in the spatial domain as well as in the frequency and time domain, the proposed 3-D CE scheme can outperform conventional two-dimensional (2-D) CE schemes, by either reducing the MSE with the same complexity or providing the same MSE performance with less complexity. Simulation results show that the proposed scheme is quite effective in the presence of spatial correlation.

[1]  Preben E. Mogensen,et al.  A stochastic MIMO radio channel model with experimental validation , 2002, IEEE J. Sel. Areas Commun..

[2]  Andrea J. Goldsmith,et al.  Capacity limits of MIMO channels , 2003, IEEE J. Sel. Areas Commun..

[3]  M.J. Juntti,et al.  Space-time MMSE channel estimation for MIMO-OFDM system with spatial correlation , 2004, 2004 IEEE 59th Vehicular Technology Conference. VTC 2004-Spring (IEEE Cat. No.04CH37514).

[4]  S. Wang,et al.  IEEE standard 802.16: a technical overview of the WirelessMAN/sup TM/ air interface for broadband wireless access , 2002, IEEE Communications Magazine.

[5]  Yong-Hwan Lee,et al.  A framework design for the next-generation radio access system , 2006, IEEE Journal on Selected Areas in Communications.

[6]  M. J. Gans,et al.  On Limits of Wireless Communications in a Fading Environment when Using Multiple Antennas , 1998, Wirel. Pers. Commun..

[7]  Audra E. Kosh,et al.  Linear Algebra and its Applications , 1992 .

[8]  O. Edfors,et al.  An analysis of two-dimensional pilot-symbol assisted modulation for OFDM , 1997, 1997 IEEE International Conference on Personal Wireless Communications (Cat. No.97TH8338).

[9]  Sinem Coleri Ergen,et al.  Channel estimation techniques based on pilot arrangement in OFDM systems , 2002, IEEE Trans. Broadcast..

[10]  Rohit U. Nabar,et al.  Introduction to Space-Time Wireless Communications , 2003 .

[11]  Patrick Robertson,et al.  Two-dimensional pilot-symbol-aided channel estimation by Wiener filtering , 1997, 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[12]  Fredrik Tufvesson,et al.  Pilot assisted channel estimation for OFDM in mobile cellular systems , 1997, 1997 IEEE 47th Vehicular Technology Conference. Technology in Motion.

[13]  J.A.C. Bingham,et al.  Multicarrier modulation for data transmission: an idea whose time has come , 1990, IEEE Communications Magazine.

[14]  Emre Telatar,et al.  Capacity of Multi-antenna Gaussian Channels , 1999, Eur. Trans. Telecommun..

[15]  Ernst Bonek,et al.  A stochastic MIMO channel model with joint correlation of both link ends , 2006, IEEE Transactions on Wireless Communications.

[16]  Ramjee Prasad,et al.  OFDM for Wireless Multimedia Communications , 1999 .

[17]  Siavash M. Alamouti,et al.  A simple transmit diversity technique for wireless communications , 1998, IEEE J. Sel. Areas Commun..