Channel estimation in comb-type pilot arrangements for OFDM systems with null subcarriers

被引：0
|
作者：
Kim, Jihyung [1 ]
Nam, Sangho [1 ]
Hong, Daesik [1 ]
机构：
[1] Yonsei Univ, Dept Elect & Elect Engn, Informat & Telecommun Lab, Seoul 120749, South Korea
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2006年 / E89B卷 / 12期
关键词：
channel estimation; time-domain ML estimation; null subcarriers; OFDM;
D O I：
10.1093/ietcom/e89-b.12.3458
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：
This letter analyzes the degradation effect of null subcarriers in orthogonal frequency domain multiplexing (OFDM) systems on the time-domain maximum likelihood (ML) estimation performance. The analysis is used as the basis for a proposal for a channel estimation method that can overcome performance degradation caused by null subcarriers. The accuracy of the proposed method is confirmed by the numerical analysis.
引用
收藏
页码：3458 / 3462
页数：5
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