Synchronization for MIMO-OFDM systems based on preamble signals
Synchronization for MIMO-OFDM systems based on preamble signals
- Author(s): Biao Yan ; Mengdong Qiu ; Qian Hu ; Jiamin Wang ; Xianggang Sun
- DOI: 10.1049/cp.2011.0621
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- Author(s): Biao Yan ; Mengdong Qiu ; Qian Hu ; Jiamin Wang ; Xianggang Sun Source: IET International Conference on Communication Technology and Application (ICCTA 2011), 2011 p. 15 – 18
- Conference: IET International Conference on Communication Technology and Application (ICCTA 2011)
- DOI: 10.1049/cp.2011.0621
- ISBN: 978-1-84919-470-9
- Location: Beijing, China
- Conference date: 14-16 Oct. 2011
- Format: PDF
An accurate technique for timing and frequency synchronization of multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems is proposed in this paper. A new preamble signal which adapts to the MIMO-OFDM synchronization, is derived based on GCL sequences. The carrier frequency offset (CFO) estimation is obtained through taking double correlation operations on the preamble signal, and used in the timing synchronization to gain accurate time estimation. From analysis, it is shown that at the same SNR, the proposed method can reduce the BER and the frame transmission BER of the system compared to the conventional method.
Inspec keywords: OFDM modulation; error statistics; synchronisation; MIMO communication; frequency estimation
Subjects: Radio links and equipment; Modulation and coding methods; Other topics in statistics
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