DocumentCode
48065
Title
Enhanced Algorithm for Digital Mitigation of ICI Due to Phase Noise in OFDM Receivers
Author
Tchamov, Nikolay N. ; Rinne, Jukka ; Hazmi, Ali ; Valkama, Mikko ; Syrjala, Ville ; Renfors, Markku
Author_Institution
Department of Communications Engineering, Tampere University of Technology, Tampere, Finland
Volume
2
Issue
1
fYear
2013
fDate
Feb-13
Firstpage
6
Lastpage
9
Abstract
In this letter, an enhanced yet computationally efficient algorithm is proposed for suppressing ICI due to phase noise in OFDM receivers. The method is particularly targeted to improve the detection error rate performance when high-order constellation size and long cyclic prefix are used. The approach optimizes the interpolation of estimated excess phase between adjacent OFDM symbols and re-compensates for residual CPE after interpolation. The proposed enhancement is verified in OFDM system with 64-QAM subcarrier modulation and 1/4 cyclic prefix, and shown to outperform state-of-the-art. Implementation complexity and its optimization are also discussed.
Keywords
Bit error rate; Complexity theory; Interpolation; OFDM; Phase noise; Receivers; Signal to noise ratio; Inter-carrier interference; digital mitigation; orthogonal frequency-division multiplexing; phase noise;
fLanguage
English
Journal_Title
Wireless Communications Letters, IEEE
Publisher
ieee
ISSN
2162-2337
Type
jour
DOI
10.1109/WCL.2012.091912.120412
Filename
6315977
Link To Document