Paper Info
Title
CFO mitigation for uplink SFBC SC-FDMA.
Abstract
To mitigate inter-carrier interference due to large carrier frequency offset (CFO) in an uplink single-carrier frequency division multiple access (SC-FDMA) system, a three-tap adaptive frequency-domain decision feedback equalizer (AFD-DFE) is designed in this paper. Our design exploits the banded and sparse structure of the equivalent channel matrix. The block recursive least squares (RLS) algorithm is used to adapt the AFD-DFE. Consequently, by exploiting the matrix structure in the frequency-domain, the complexity of the block RLS is reduced substantially when compared to its time-domain counterpart. In addition, the design is extended to space-frequency block coded (SFBC) SC-FDMA systems. We show that our proposed AFD-DFE exhibits significant performance improvement when compared to a one-tap AFD-DFE while still enjoying a low computational complexity.
Year
DOI
Venue
2016
10.1186/s13634-016-0333-3
EURASIP J. Adv. Sig. Proc.
Keywords
Field
DocType
Carrier Frequency Offset, Matrix Inversion, Orthogonal Frequency Division Multiple Access, Recursive Little Square, Space Time Block Code
Computer science,Carrier frequency offset,Real-time computing,Interference (wave propagation),Artificial intelligence,Space–time block code,Computer vision,Orthogonal frequency-division multiple access,Algorithm,Frequency-division multiple access,Recursive least squares filter,Telecommunications link,Computational complexity theory
Journal
Volume
Issue
ISSN
2016
1
1687-6180
Citations 
PageRank 
References 
2
0.37
13
Authors
2
Name
Order
Citations
PageRank
Naveed Iqbal1176.03
Azzedine Zerguine234351.98