In this paper,we address the Alamouti code in Filter-Bank Multicarrier with Offset Quadrature Amplitude Modulation (FBMC/OQAM) and propose a novel block-wise Alamouti code,in which a repeated block is designed to eliminate the imaginary interference among FBMC/OQAM symbols.The proposed approach exhibits a higher spectral efficiency than the conventional block-wise Alamouti scheme,as only one column of zero symbols is used as a guard interval instead of two.Furthermore,compared to the conventional scheme,the bit error ratio is improved in the proposed block-wise Alamouti,as the assumption on channel invariance at two adjacent sub-carriers is not required.Simulation results indicate that,with a significantly reduced overhead,the proposed Alamouti scheme achieves better performance over the conventional block-wise Alamouti scheme.

Dejin Kong;Xing Zheng;Yukang Tian;Tao Jiang;Yue Zhang

School of Electronic and Electrical Engineering,Wuhan Textile University,Wuhan,China;State Key Laboratory of New Textile Materials and Advanced Processing Technologies,Wuhan Textile University,Wuhan,China;Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan,China;Department of Engineering,University of Leicester,Leicester,LE17RH,UK

数字通信与网络（英文）

[1]Dejin Kong;Xing Zheng;Yukang Tian;Tao Jiang;Yue Zhang-.Alamouti code based on block repetition in FBMC/OQAM systems)[J].数字通信与网络（英文）,2022(01):58-63

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