Pilot and Data Aided Channel Estimation for OFDM systems in Rapidly Time-Varying Channels

被引：0
|
作者：
Wee, Jungwook [1 ]
Jeon, Wongi [1 ]
Lee, Younsung [1 ]
Kwon, Kiwon [1 ]
Cho, Yongsoo [2 ]
机构：
[1] Korea Elect Technol Inst, Adv Mobile Technol Res Ctr, Seoul, South Korea
[2] Chung Ang Univ, Sch Elect & Elect Engn, Seoul, South Korea
来源：
2009 IEEE VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5 | 2009年
关键词：
EQUALIZATION;
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：
In this paper, we propose an efficient estimation technique for time-varying multipath channels by exploiting two dimensional delay-time nature in pilot inserted orthogonal frequency division multiplexing (OFDM) systems. The proposed technique consists of multipath snapshot estimation at periodic channel observation instances over an OFDM block and the linear interpolation of two consecutive multipath snapshots. Two decision-directed data utilizing schemes, data removed and data added correlation schemes, are proposed to enhance the performance of the multipath snapshot estimation.
引用
收藏
页码：1915 / +
页数：2
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