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123
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TSP
2008
15 years 3 months ago
2008
Sign-selection uses a set of subcarrier signs to reduce the peak-to-average power ratio (PAR) of orthogonal-frequency-division multiplexing (OFDM). However, the computational compl...
132
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ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
—New air interfaces are currently being developed to meet the high spectral efficiency requirements of the emerging wireless communication systems. In this context, OFDM is cons...
137
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COMPGEOM
2003
ACM
15 years 9 months ago
2003
ACM
Docking is the process by which two or several molecules form a complex. Docking involves the geometry of the molecular surfaces, as well as chemical and energetical consideration...
130
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SODA
2008
ACM
15 years 5 months ago
2008
ACM
We introduce a new feature size for bounded domains in the plane endowed with an intrinsic metric. Given a point x in a domain X, the homotopy feature size of X at x measures half...
142
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APPROX
2004
Springer
15 years 9 months ago
2004
Springer
In this paper we investigate the computational complexity of a combinatorial problem that arises in the reverse engineering of protein and gene networks. Our contributions are as ...