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Efficient Pilot Patterns and Channel Estimations for MIMO-OFDM Systems

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2 Author(s)
Jong-Seob Baek ; Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea ; Jong-Soo Seo

In this paper, we present the efficient pilot patterns and channel estimations for a high-rate multi-input multi-output orthogonal frequency division multiplexing (MIMO-OFDM) system. In particular, we propose the scattered pilot (SP), edge pilot (EP), and continuous pilot (CP) by exploiting a basic orthogonal property of a unitary matrix. From the orthogonal property, we then propose the efficient channel frequency response (CFR) and channel impulse response (CIR) estimations. Finally, we evaluate the efficiency of the proposed schemes by comparing with a multi-input single-output OFDM (MISO-OFDM) system.

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Broadcasting, IEEE Transactions on  (Volume:58 ,  Issue: 4 )