Alamouti code based on block repetition in FBMC/OQAM systems  

作　　者：Dejin Kong Xing Zheng Yukang Tian Tao Jiang Yue Zhang 

机构地区：[1]School of Electronic and Electrical Engineering,Wuhan Textile University,Wuhan,China [2]State Key Laboratory of New Textile Materials and Advanced Processing Technologies,Wuhan Textile University,Wuhan,China [3]Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan,China [4]Department of Engineering,University of Leicester,Leicester,LEI 7RH,UK

出　　处：《Digital Communications and Networks》2022年第1期58-63,共6页数字通信与网络（英文版）

基　　金：supported in part by the National Natural Science Foundation of China with Grant numbers 62001333,61729101,61831013 and 11804256.

摘　　要：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.

关 键 词：ALAMOUTI Filter-bank multicarrier Block repetition Imaginary interference 

分 类 号：TN92[电子电信—通信与信息系统]