The Design and Efficient Structure of All Phase Filter Banks for Multi-carrier Modulation

摘要：

In this paper, a novel all phase DFT filter bank (APFB) for multi-carrier modulation is presented and the efficient implementation structure is derived. A narrowband APDFT prototype filter exhibits higher stop attenuation and an M-band APFB with the strict power complementarities can be easily achieved by designing the frequency response vectors. The impulse response of the proposed APFB is also real and symmetric. For a modulation system with the subchannel number M, the overlapped factor 2q and the symbol period for sub channel To, the multiplication processing unit (MPU) amount is (3Mlog2M+2qMlog22q+6qM+M+1)/T0 per second for the transmitter and (2qM+2qMlog22qM+4M-4)/T0 per second for the receiver with the efficient structure whereas the MPU amount is (4qM3-M2)/T0 per second for those with the direct realization structure. The comparison shows that the proposed structure possesses the advantage of much higher computational efficiency than the direct realization structure.

关键词： All Phase DFT Filter Bank Multi-carrier Modulation Frequency Response Vector

作者: Xujing Guo Zulin Wang Jing Zheng Jiadong Shang

作者单位: School of Electronics and Information Engineering,Beihang University,Beijing 100191, China

会议类型: 国际会议

会议名称: 2010 IEEE International Conference on Intelligent Computing and Intelligent Systems(2010 IEEE 智能计算与智能系统国际会议 ICIS 2010)

会议地点: 厦门

会议语种:英文

页码: 652-656

在线出版日期: 2010-10-29（万方平台首次上网日期，不代表论文的发表时间）