Time-domain modified DFT modulated filter banks for multi-carrier transceiver systems  

作　　者：SHAO Kai JI Xiang ZHUANG Ling WANG Guang-yu 

机构地区：[1]Chongqing Key Laboratory of Mobile Communications Technology, Chongqing University of Posts and Telecommunications [2]Department of Electronics and Communications Engineering, Tampere University of Technology

出　　处：《The Journal of China Universities of Posts and Telecommunications》2014年第2期57-62,共6页中国邮电高校学报（英文版）

基　　金：supported by Young Scientists Fund of Chongqing University of Posts and Telecommunications(A2013-32)

摘　　要：A time domain designing method is proposed for discrete Fourier transform （DFT） modulated filter banks （DFT-FBs） for application in multi-carrier transceiver systems. Instead of using the time-reversed pair limitation between the transmitting /receiving filter pair, the receiving filters in the proposed filter banks are derived from transmitting filters in accordance with the Moore-Penrose generalized inverse matrix. It can be freely obtained to design the transmitting prototype filter, which mainly affects the level of spectral containment. Furthermore, the symbol error rate （SER） performance of the proposed filter bank based trans-multiplexer with one tap equalizer is investigated in ideal channel and multi-path channel environments respectively. Simulation shows that the proposed approach can achieve significant SER reductions when square root raised cosine （RRC） prototype filter is used for comparing with the orthogonal frequency division multiplexing （OFDM） and the general DFT-FBs based applications.A time domain designing method is proposed for discrete Fourier transform （DFT） modulated filter banks （DFT-FBs） for application in multi-carrier transceiver systems. Instead of using the time-reversed pair limitation between the transmitting /receiving filter pair, the receiving filters in the proposed filter banks are derived from transmitting filters in accordance with the Moore-Penrose generalized inverse matrix. It can be freely obtained to design the transmitting prototype filter, which mainly affects the level of spectral containment. Furthermore, the symbol error rate （SER） performance of the proposed filter bank based trans-multiplexer with one tap equalizer is investigated in ideal channel and multi-path channel environments respectively. Simulation shows that the proposed approach can achieve significant SER reductions when square root raised cosine （RRC） prototype filter is used for comparing with the orthogonal frequency division multiplexing （OFDM） and the general DFT-FBs based applications.

关 键 词：time-domain matrix DFT filter banks perfect reconstruction filter bank multi-carrier （FBMC） systems TRANSCEIVER 

分 类 号：TN713[电子电信—电路与系统] TN929.533