%0 Journal Article
%T Parallel Interference Cancellation Based Signal Detection for OFDM/OQAM Systems<br>基于并行干扰抵消的OFDM/OQAM系统中的信号检测方法
%A Wu Gang Hu Su Chen Hao Li Shao-qian
%A <br>武刚
%A 胡苏
%A 陈浩
%A 李少谦
%J 电子与信息学报
%D 2013
%I 
%X Because of the usage of practical windowed pulse shaping filter and limitation of real field orthogonality of OFDM with Offset QAM (OFDM/OQAM) systems, the zero-forcing equalization as signal detector can not completely remove the Inter-Symbol Interference (ISI) and Inter-Carrier Interference (ICI) introduced by multipath fading channels. The ISI and ICI lead to severe degradation of BER performance of OFDM/OQAM system. Moreover, the imperfect channel estimation by using preamble also results in the further BER performance degradation. In this paper, one Parallel-Interference-Cancellation (PIC) signal detection method based on zero-forcing equalization for OFDM/OQAM systems is proposed by reconstruction of ISI and ICI with aid of initial data detection. And analytical results on residual interference by Zero-Forcing (ZF) and imperfect channel estimator are given. Finally, simulation results demonstrate that OFDM/OQAM system with PIC signal detector can achieve better BER performance by 1 dB to 2 dB while BER equal to 1% than conventional signal detector.
%K Mobile communication signal detection
%K OFDM modulation
%K Offset QAM (OQAM)
%K Pulse shaping filter
%K Parallel Interference Cancellation (PIC)<br>移动通信信号检测
%K 正交频分复用调制
%K 交错正交幅度调制
%K 成形滤波器
%K 并行抵消
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=D7FACDD289E24C2D0EAF98647235FD80&yid=FF7AA908D58E97FA&iid=CA4FD0336C81A37A&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=0