Publisher : The Korean Institute of Electromagnetic Engineering and Science
DOI : 10.5515/KJKIEES.2016.27.1.27
Title & Authors
Channel Estimation Using Virtual Pilot Signal for MIMO-OFDM Systems Seo, Heejin; Park, Sunho; Kim, Jinhong; Shim, Byonghyo;
In this paper, we proposed a soft decision-directed channel estimation based on MMSE estimation for MIMO-OFDM system. While the conventional method employs only pilot signals for channel estimation, the proposed algorithm performs channel estimation using pilot and reliable data signals. We also proposed selection criterion among reliable data signal for channel estimation. From numerical simulations, we show that the proposed channel estimator achieves 1 dB performance gain over conventional channel estimators.
Channel Estimation;Orthogonal Frequency Division Multiplexing(OFDM);Multi-Input Multi-Output(MIMO);Decision-Directed Channel Estimation;Iterative Detection and Decoding;
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