Joint channel estimation and phase noise suppression for OFDM systems

被引：0
|
作者：
Lee, JH [1 ]
Yang, JS [1 ]
Kim, SC [1 ]
Park, YW [1 ]
机构：
[1] Seoul Natl Univ, Sch Elect Engn & Comp Sci, Seoul, South Korea
来源：
VTC2005-SPRING: 2005 IEEE 61ST VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, PROCEEDINGS | 2005年
关键词：
channel estintation; phase noise; EM; OFDM;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
The joint channel estimation and phase noise suppression scheme for orthogonal frequency-division multiplexing (OFDM) systems is proposed for a case where channel estimation is needed symbol by symbol. In the proposed scheme, channel estimation and phase noise suppression are performed iteratively via the expectation-maximization (EM) algorithm. The proposed algorithm mitigates the performance degradation due to phase noise effectively while providing the accurate channel estimate with comparatively few pilot subcarriers so that the spectral efficiency of an OFDM system is improved.
引用
收藏
页码：467 / 470
页数：4
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