A superimposed periodic pilot scheme for semi-blind channel estimation of OFDM systems

被引：0
|
作者：
Chen, N [1 ]
Zhou, GT [1 ]
机构：
[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA
来源：
PROCEEDINGS OF THE 2002 IEEE 10TH DIGITAL SIGNAL PROCESSING WORKSHOP & 2ND SIGNAL PROCESSING EDUCATION WORKSHOP | 2002年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An attractive feature of the Orthogonal Frequency Division Multiplexing (OFDM) system is its simple one-tap equalizer for linear channel distortions. Nevertheless, one still has to address the channel estimation issue. In mobile environments, self-recovery methods that avoid any recurring training overhead are of interest. In this paper, we propose a superimposed pilot scheme employing only a first-order statistic to identify the channel for OFDM systems. It can be regarded as a semi-blind method and does not require dedicated slots for training. This scheme allows for simple channel estimation as well as equalization, with no loss of spectral efficiency.
引用
收藏
页码：362 / 365
页数：4
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