DocumentCode
586140
Title
On Subspace Noise Estimation for OFDM
Author
Haghighat, Afshin
fYear
2012
fDate
3-6 Sept. 2012
Firstpage
1
Lastpage
4
Abstract
The performance of the subspace-based noise power estimation algorithm for an OFDM receiver is investigated. It is shown that due to the correlation of the channel in the frequency domain, the dimension of the autocorrelation matrix does not need to be larger than the number of signal paths. Therefore, due to the reduction of the dimension of the signal space, the required complexity and computation for subspace decomposition is reduced. It is shown that the algorithm performs well in various speed and channel conditions.
Keywords
Long Term Evolution; OFDM modulation; correlation methods; radio receivers; OFDM receiver; autocorrelation matrix; orthogonal frequency division multiplexing; signal space; subspace based noise power estimation algorithm; subspace decomposition; Channel estimation; Correlation; Estimation; OFDM; Receivers; Signal to noise ratio;
fLanguage
English
Publisher
ieee
Conference_Titel
Vehicular Technology Conference (VTC Fall), 2012 IEEE
Conference_Location
Quebec City, QC
ISSN
1090-3038
Print_ISBN
978-1-4673-1880-8
Electronic_ISBN
1090-3038
Type
conf
DOI
10.1109/VTCFall.2012.6398975
Filename
6398975
Link To Document