高技术通讯2017，Vol.27Issue(7)：619-624,6.DOI:10.3772/j.issn.1002-0470.2017.07.005
多径信道下基于频域均衡的超奈奎斯特传输
Faster than Nyquist transmission over multipath channels based on frequency-domain equalization
摘要
Abstract
To solve the problem that during the faster than Ngquist ( FTN ) transmitting over frequency selective chan-nels, the FTN signaling and multipath selective channels can both induce inter-symbol-interference (ISIs), a re-ceiving scheme using the frequency-domain equalization and the low density parity check ( LDPC ) coding is pro-posed to improve the performance of signal transmission.The receiving scheme uses the frequency-domain equalizer to perform frequency-domain equalizing at the receiving end for the ISI induced by FTN signaling and multipath channels, and then the LDPC decoder recovers the original data by using the maximum a posterior ( MAP) criteri-on.The simulation demonstrates that the BER ( bit error rate) performance is improved with the proposed transmis-sion scheme.关键词
超奈奎斯特(FTN)/域均衡器/LDPC码/符号间干扰Key words
faster than Nyquist ( FTN)/frequency-domain equalizer/low density parity check ( LDPC) code/inter-symbol-interference ( ISI)引用本文复制引用
王志峰,白勇,唐啸宇,黄梦醒..多径信道下基于频域均衡的超奈奎斯特传输[J].高技术通讯,2017,27(7):619-624,6.基金项目
国家自然科学基金(61561017),海南省科技厅重大科技计划(ZDKJ2016015)和海南省自然科学基金(617033)资助项目. （61561017）
