%0 Journal Article
%T A blind channel estimation algorithm for an OFDM system<br>一种OFDM系统中的盲信道估计算法
%A Shao Huaizong
%A Peng Qicong
%A <br>邵怀宗
%A 彭启琮
%J 电子与信息学报
%D 2003
%I 
%X In this paper, a blind channel estimator based on the aid of Pseudo-Pilot-Symbols (PPS) is proposed in terms of the two characters of OFDM system: the finite alphabet property of information symbols and independent property between subchannels. Unlike pilots which are used for estimation of channel and must waste some useful bandwidth, the PPSs, whose power can be boosted 3dB or 6dB to suppress efficiently the additive noise, is useful data transmitted, thus efficiency of the OFDM has been increased. Performance simulation of the proposed estimator including Mean Squares Error (MSE) of channel and uncoded Bit Error Rate(BER) have been taken, and the results show the estimator is efficient and very flexible.
%K Blind channel estimation
%K OFDM
%K Pseudo-Pilot-Symbols(PPS)<br>OFDM
%K 盲信道估计
%K 算法
%K 伪导频符号
%K 正交频分复用
%K 数据传输
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=53E6B9F7183FF30A&yid=D43C4A19B2EE3C0A&vid=C5154311167311FE&iid=9CF7A0430CBB2DFD&sid=379827DA4720AA2A&eid=E477FFDBDE309A4B&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=1&reference_num=8