DocumentCode
1192356
Title
Analysis of pilots for residual frequency offset estimation in MIMO OFDM systems
Author
Aoki, Tsuguhide ; Sandell, Magnus
Author_Institution
Corp. Res.&Dev. Center, Toshiba Corp., Kawasaki
Volume
8
Issue
3
fYear
2009
fDate
3/1/2009 12:00:00 AM
Firstpage
1128
Lastpage
1132
Abstract
This paper analyses the estimation of residual frequency offset in MIMO OFDM systems using pilot subcarriers embedded in the data payload. A closed-form expression for the MSE is derived and it shows how the frequency and spatial correlation influence performance. It is also shown that an orthogonal design ensures robust performance, which is independent of the frequency correlation of the channel.
Keywords
MIMO communication; OFDM modulation; frequency estimation; mean square error methods; MIMO OFDM system; MSE; channel frequency correlation; closed-form expression; data payload; orthogonal design; residual frequency offset estimation; spatial correlation; Closed-form solution; Frequency estimation; MIMO; Maximum likelihood estimation; OFDM; Payloads; Performance analysis; Receiving antennas; Robustness; Transmitting antennas; MIMO; OFDM; frequency offset; pilot;
fLanguage
English
Journal_Title
Wireless Communications, IEEE Transactions on
Publisher
ieee
ISSN
1536-1276
Type
jour
DOI
10.1109/TWC.2009.090311
Filename
4801458
Link To Document