%0 Journal Article
%T Approach to Parameters Estimation and Signal Detection for OFDMA Uplink Based on PN Sequence<br>一种基于PN序列的OFDMA上行链路参数估计和信号检测方法
%A Dang Jun-hong
%A Shao Wei-wei
%A <br>党军宏
%A 邵玮炜
%J 电子与信息学报
%D 2008
%I 
%X This paper addresses the problem of parameters estimation and signal detection for OFDMA Uplink. Firstly, a transmit signal frame structure for OFDMA uplink is designed, the preamble of frame structure consists of PN sequence. Secondly, the carrier frequency offset and channel estimation algorithm based on PN sequence are proposed, also a time minimum-mean-squre-error signal detection algorithm is proposed for OFDMA uplink. Simulation results demonstrate the carrier frequency offset and channel estimation algorithm can get more accurate parameters estimation because of correlation of PN sequence, meanwhile it is immune to the noise and adapts to the fading channel, the time minimum-mean-squre-error signal detection algorithm can provide better bit error rate performance.
%K OFDMA Uplink
%K PN sequence
%K Carrier frequency offset and channel estimation
%K Signal detection<br>OFDMA上行链路
%K PN序列
%K 频偏信道参数估计
%K 信号检测
%K 序列构成
%K OFDMA
%K 上行链路
%K 信道参数估计
%K 误差信号
%K 检测方法
%K PN
%K Sequence
%K Based
%K Signal
%K Detection
%K Parameters
%K Estimation
%K 性能
%K 误比特率
%K 误差检测算法
%K 估计精度
%K 适应性
%K 衰落信道
%K 抗噪特性
%K 相关特性
%K 利用
%K 信道估计算法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=B02766DD8D092A8469C7206CCFAF8ACF&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=CA4FD0336C81A37A&sid=16D8618C6164A3ED&eid=BE33CC7147FEFCA4&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=7