Improved Frequency-Offset Estimation Research for MIMO Systems
نویسندگان
چکیده
منابع مشابه
Improved Frequency - offset Estimation Research for MIMO Systems
ML frequency-offset estimation is hardly be widely used in practical communication systems because of the computational complexity. There is loss of SNR by using low complexity frequency offset estimation based on correlation relative. A novel frequency-offset estimator based on best-weighted correlations is proposed in the paper. By using periodic training sequences the algorithm calculates th...
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Carrier Frequency Offset Estimation For MIMO-OFDM Beamforming Systems
In wireless communications systems, Orthogonal Frequency Division Multiplexing (OFDM) and Multiple Input Multiple Output (MIMO) are used to improve spectral efficiency and spatial diversity. Beamforming is used to improve bandwidth utilization. It increases the network range in wireless systems. The main challenge of OFDM system is Carrier frequency offset (CFO). The project focuses on CFO esti...
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Orthogonal frequency division multiplexing (OFDM) is a popular method for high data rate wireless transmission. The performance of OFDM system is very sensitive to carrier frequency Offset (CFO), which introduces inter-carrier interference (ICI). Multi-input multi-output system used for increasing diversity gain and capacity of the system. Alamouti space time block code is used for MIMO transmi...
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This paper addresses a simplified frequency offset estimator for multiple-input–multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems over frequency-selective fading channels. By exploiting the good correlation property of the training sequences, which are constructed from the Chu sequence, carrier frequency offset (CFO) estimation is obtained through factor decomposi...
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ژورنال
عنوان ژورنال: Energy Procedia
سال: 2011
ISSN: 1876-6102
DOI: 10.1016/j.egypro.2011.12.413