Regression model based channel estimation for OFDM with multiple transmitters |
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Authors: | Won-Gyu Song Jong-Tae Lim |
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Affiliation: | Dept. of Electr. Eng. & Comput. Sci, Korea Adv. Energy Res. Inst., Daejeon, South Korea; |
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Abstract: | Based on a nonlinear two-dimensional (2-D) regression model, we analyze the OFDM system performance with respect to the operation block size and pilot density. Specifically, we propose a regression model based channel estimation for the OFDM system with multiple transmit antennas. To obtain the proper estimation, we introduce the guidelines for designing pilot values and an expectation-maximization (EM) based solution with lower computation complexity. |
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