Efficient Pilot Patterns and Channel Estimations for MIMO-OFDM Systems

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...

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Bibliographic Details
Published in:IEEE transactions on broadcasting 2012-12, Vol.58 (4), p.648-653
Main Authors: BAEK, Jong-Seob, SEO, Jong-Soo
Format: Article
Language:English
Subjects:
Applied sciences
Channel estimation
Detection, estimation, filtering, equalization, prediction
Digital video broadcasting
Estimation
Exact sciences and technology
Information, signal and communications theory
MIMO
multi-input multi-output system
Multiplexing
OFDM
orthogonal frequency division multiplexing
Pattern recognition
pilot pattern
Receiving antennas
Signal and communications theory
Signal processing
Signal to noise ratio
Signal, noise
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
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Summary: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.
ISSN:0018-9316
1557-9611
DOI:10.1109/TBC.2012.2191696