OFDM System Channel Estimation with Hidden Pilot

被引：0
|
作者：
杨峰
林成裕
张文军
机构：
[1] Information and Electrical Eng.
[2] China
[3] Shanghai Jiaotong Univ.
[4] Institute of Image Communication and Image Processing School of Electronic
[5] Shanghai 200240
来源：
Journal of Shanghai Jiaotong University | 2007年 / 02期
关键词：
OFDM; channel estimation; hidden pilot;
D O I：
暂无
中图分类号：
TN919.72 [无线数据通信];
学科分类号：
摘要：
Channel estimation using pilot is common used in OFDM system.The pilot is usually time division multiplexed with the informative sequence.One of the main drawbacks is bandwidth losing.In this paper,a new method was proposed to perform channel estimation in OFDM system.The pilot is arithmetically added to the output of OFDM modulator.Receiver uses the hidden pilot to get an accurate estimation of the channel.Then pilot is removed after channel estimation.The Cramer-Rao lower bound for this method was deprived.The performance of the algorithm is then shown.Compared with traditional methods,the proposed algorithm increases the bandwidth efficiency dramatically.
引用
收藏
页码：234 / 238 +246
页数：6
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