Novel matrix representation for OFDM/OQAM systems  

作　　者：Li Zhongnian Liu Shouyin 

机构地区：[1]Department of Electronics and Information Engineering,Central China Normal University

出　　处：《The Journal of China Universities of Posts and Telecommunications》2018年第3期17-23,共7页中国邮电高校学报（英文版）

基　　金：supported by Hubei Provincial Natural Science Foundation of China (2017CFB591)

摘　　要：In orthogonal frequency division multiplexing （OFDM）/offset quadrature amplitude modulation （OQAM） systems, the relationship between the input of the synthesis filter bank （SFB） and the output of the analysis filter bank （AFB） is much more complicated than OFDM due to its special prototype filter. By analyzing the trans- muhiplexer response characteristics, an equivalent trans-multiplexer matrix is proposed to describe the relationship between the input and the output. With the equivalent matrix, the output can be easily computed using matrix multiplication with the input. Moreover, with the inverse of the equivalent trans-muhiplexer matrix, imaginary interference can be eliminated using the precoding method. The simulation results show the correctness of the equivalent trans-multiplexer matrix.In orthogonal frequency division multiplexing （OFDM）/offset quadrature amplitude modulation （OQAM） systems, the relationship between the input of the synthesis filter bank （SFB） and the output of the analysis filter bank （AFB） is much more complicated than OFDM due to its special prototype filter. By analyzing the trans- muhiplexer response characteristics, an equivalent trans-multiplexer matrix is proposed to describe the relationship between the input and the output. With the equivalent matrix, the output can be easily computed using matrix multiplication with the input. Moreover, with the inverse of the equivalent trans-muhiplexer matrix, imaginary interference can be eliminated using the precoding method. The simulation results show the correctness of the equivalent trans-multiplexer matrix.

关 键 词：OFDM/OQAM trans-multiplexer matrix imaginary interference 

分 类 号：TN929.53[电子电信—通信与信息系统]