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ICC
2007
IEEE
142views Communications» more  ICC 2007»
14 years 1 months ago
Generalized CRLB for DA and NDA Synchronization of UWB Signals with Clock Offset
—In this paper the Cramér-Rao lower bound (CRLB) of an ultra-wideband (UWB) pulse amplitude modulated (PAM) signal with time hopping (TH) code is derived for the practical case ...
Saeed Khalesehosseini, John Nielsen
ICC
2007
IEEE
14 years 1 months ago
Optical Impulse Modulation for Diffuse Indoor Wireless Optical Channels
— In this paper, power efficient signaling over indoor diffuse wireless optical channels is considered. Present-day laser diodes have pulse rates many times higher than the band...
Mohamed D. A. Mohamed, Steve Hranilovic
JSAC
2007
132views more  JSAC 2007»
13 years 7 months ago
Lifetime maximization via cooperative nodes and relay deployment in wireless networks
— Extending lifetime of battery-operated devices is a key design issue that allows uninterrupted information exchange among distributed nodes in wireless networks. Cooperative co...
Thanongsak Himsoon, W. Pam Siriwongpairat, Zhu Han...
ALMOB
2007
151views more  ALMOB 2007»
13 years 7 months ago
Local sequence alignments statistics: deviations from Gumbel statistics in the rare-event tail
Background: The optimal score for ungapped local alignments of infinitely long random sequences is known to follow a Gumbel extreme value distribution. Less is known about the imp...
Stefan Wolfsheimer, Bernd Burghardt, Alexander K. ...
BMCBI
2006
120views more  BMCBI 2006»
13 years 7 months ago
Optimizing amino acid substitution matrices with a local alignment kernel
Background: Detecting remote homologies by direct comparison of protein sequences remains a challenging task. We had previously developed a similarity score between sequences, cal...
Hiroto Saigo, Jean-Philippe Vert, Tatsuya Akutsu