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» On Reduction of Lagrange Systems
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TSP
2010
13 years 2 months ago
Mitigating channel estimation error with timing synchronization tradeoff in cooperative communications
Channel estimation error and co-channel interference (CCI) problems are among the main causes of performance degradation in wireless networks. In this paper, we investigate the im...
Ahmed S. Ibrahim, K. J. Ray Liu
CORR
2011
Springer
195views Education» more  CORR 2011»
12 years 11 months ago
Collective response of human populations to large-scale emergencies
Despite recent advances in uncovering the quantitative features of stationary human activity patterns, many applications, from pandemic prediction to emergency response, require a...
James P. Bagrow, Dashun Wang, Albert-Lászl&...
HICSS
2011
IEEE
157views Biometrics» more  HICSS 2011»
12 years 11 months ago
Reusing Relational Queries for Intuitive Decision Optimization
— Decision optimization is used in many applications such as those for finding the best course of action in emergencies. However, optimization solutions require considerable mat...
Alexander Brodsky, Nathan E. Egge, Xiaoyang Sean W...
CISS
2011
IEEE
12 years 11 months ago
Characterizing multiplexing and diversity in visual MIMO
—Mobile optical wireless has so far been limited to very short ranges for high data rate systems. It may be feasible to overcome the data rate limitations over large transmission...
Ashwin Ashok, Marco Gruteser, Narayan B. Mandayam,...
MP
2011
12 years 10 months ago
An interior-point piecewise linear penalty method for nonlinear programming
We present an interior-point penalty method for nonlinear programming (NLP), where the merit function consists of a piecewise linear penalty function (PLPF) and an 2-penalty functi...
Lifeng Chen, Donald Goldfarb