Phase noise correction for OFDM signal based on DCT approach and variational inference

doi:10.1016/S1005-8885(11)60261-6

中国邮电高校学报(英文) ›› 2012, Vol. 19 ›› Issue (3): 27-32.doi: 10.1016/S1005-8885(11)60261-6

Phase noise correction for OFDM signal based on DCT approach and variational inference

陈鹏,李楠,牛凯,贺志强,吴伟陵

Beijing University of Posts and Telecommunications,

收稿日期:2011-09-20 修回日期:2012-03-20 出版日期:2012-06-30 发布日期:2012-06-08
通讯作者: 陈鹏 E-mail:pengc.bupt@gmail.com
基金资助:
国家重点基础研究发展计划;国家重点科技攻关项目

Phase noise correction for OFDM signal based on DCT approach and variational inference

Beijing University of Posts and Telecommunications,

Received:2011-09-20 Revised:2012-03-20 Online:2012-06-30 Published:2012-06-08
Supported by:
the China National Basic Research Program of China;the National Key Scientific and Technological Project of China

摘要/Abstract

摘要：

A novel scheme to joint phase noise (PHN) correcting and channel noise variance estimating for Orthogonal Frequency Division Multiplexing (OFDM) signal was proposed. The new scheme was based on the Variational Bayes (VB) method and discrete cosine transform (DCT) approximation. Compared with the least squares (LS) based scheme, the proposed scheme could overcome the over-fitting phenomenon and thus lead to an improved performance. Computer simulations showed that the proposed VB based scheme outperforms the existing LS based scheme

关键词:

variational Bayes method, discrete cosine transform, phase noise, OFDM

Abstract:

Key words:

variational Bayes method, discrete cosine transform, phase noise, OFDM

Phase noise correction for OFDM signal based on DCT approach and variational inference

Phase noise correction for OFDM signal based on DCT approach and variational inference

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