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Efficient Pilot Patterns and Channel Estimations for MIMO-OFDM Systems


Abstract:

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-O...Show More

Abstract:

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.
Published in: IEEE Transactions on Broadcasting ( Volume: 58, Issue: 4, December 2012)
Page(s): 648 - 653
Date of Publication: 07 May 2012

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