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168
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PAAPP
2002
15 years 6 months ago
2002
Applications involving large sparse nonsymmetric linear systems encourage parallel implementations of robust iterative solution methods, such as GMRES(k). Two parallel versions of...
162
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SIAMDM
2010
15 years 5 months ago
2010
We consider the class of max-min and min-max optimization problems subject to a global budget (or weight) constraint and we undertake a systematic algorithmic and complexitytheore...
166
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COMPUTING
2010
15 years 4 months ago
2010
We design improved approximation algorithms for two variants of the ADM minimization problem. SONET add-drop multiplexers (ADMs) are the dominant cost factor in SONET/WDM rings. T...
201
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GLOBECOM
2010
IEEE
15 years 4 months ago
2010
IEEE
Abstract-- A new approach to distributed cooperative beamforming in two-way half-duplex relay networks with frequency selective channels is proposed. In our scheme, two transceiver...
218
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RFIDSEC
2010
15 years 1 months ago
2010
Abstract. We demonstrate two classes of attacks on EC-RAC, a growing set of RFID protocols. Our first class of attacks concerns the compositional approach used to construct a parti...