TY - GEN
T1 - Channel estimation and ICI cancellation for high mobility pilot-aided MIMO-OFDM systems
AU - Aboutorab, Neda
AU - Hardjawana, Wibowo
AU - Vucetic, Branka
PY - 2013
Y1 - 2013
N2 - In this paper, we propose an iterative channel estimation and inter-carrier interference (ICI) cancellation method for highly mobile users in Long-Term-Evolution (LTE) systems. The proposed scheme estimates the wireless channel by using pilot symbols, estimates of the data symbols and Doppler spread information at the receiver. The wireless channel is expressed by a weighted time-domain channel interpolation, where the interpolation weights are designed based on the Doppler spread. The channel estimates are obtained by employing a least square (LS) method. A simplified parallel interference cancellation (PIC) scheme coupled with decision statistical combining (DSC) is used to cancel the ICI and to improve the data symbols detection. These data symbols are then utilized to refine the channel estimation further, iteratively. Simulation results are used to verify the effectiveness of the proposed method.
AB - In this paper, we propose an iterative channel estimation and inter-carrier interference (ICI) cancellation method for highly mobile users in Long-Term-Evolution (LTE) systems. The proposed scheme estimates the wireless channel by using pilot symbols, estimates of the data symbols and Doppler spread information at the receiver. The wireless channel is expressed by a weighted time-domain channel interpolation, where the interpolation weights are designed based on the Doppler spread. The channel estimates are obtained by employing a least square (LS) method. A simplified parallel interference cancellation (PIC) scheme coupled with decision statistical combining (DSC) is used to cancel the ICI and to improve the data symbols detection. These data symbols are then utilized to refine the channel estimation further, iteratively. Simulation results are used to verify the effectiveness of the proposed method.
UR - http://www.scopus.com/inward/record.url?scp=84881603374&partnerID=8YFLogxK
U2 - 10.1109/WCNC.2013.6555059
DO - 10.1109/WCNC.2013.6555059
M3 - Conference contribution
SN - 9781467359399
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 3110
EP - 3115
BT - 2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
T2 - 2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
Y2 - 7 April 2013 through 10 April 2013
ER -