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» On the Complexity of the Maximum Cut Problem
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INFOCOM
2010
IEEE
14 years 8 months ago
On Distributed Time-Dependent Shortest Paths over Duty-Cycled Wireless Sensor Networks
Abstract—We revisit the shortest path problem in asynchronous duty-cycled wireless sensor networks, which exhibit time-dependent features. We model the time-varying link cost and...
Shouwen Lai, Binoy Ravindran
DAM
2007
177views more  DAM 2007»
14 years 9 months ago
On Khachiyan's algorithm for the computation of minimum-volume enclosing ellipsoids
Given A := {a1, . . . , am} ⊂ Rd whose affine hull is Rd, we study the problems of computing an approximate rounding of the convex hull of A and an approximation to the minimum ...
Michael J. Todd, E. Alper Yildirim
SIAMJO
2010
136views more  SIAMJO 2010»
14 years 4 months ago
A New Exchange Method for Convex Semi-Infinite Programming
In this paper we propose a new exchange method for solving convex semi-infinite programming (CSIP) problems. We introduce a new dropping-rule in the proposed exchange algorithm, wh...
Liping Zhang, Soon-Yi Wu, Marco A. López
VTC
2008
IEEE
236views Communications» more  VTC 2008»
15 years 4 months ago
Apriori-LLR-Threshold-Assisted K-Best Sphere Detection for MIMO Channels
—When the maximum number of best candidates retained at each tree search level of the K-Best Sphere Detection (SD) is kept low for the sake of maintaining a low memory requiremen...
Li Wang, Lei Xu, Sheng Chen, Lajos Hanzo
VTC
2008
IEEE
164views Communications» more  VTC 2008»
15 years 4 months ago
Resource Allocation for Downlink Spectrum Sharing in Cognitive Radio Networks
— We consider a resource allocation problem for spectrum sharing in cognitive radio networks. Specifically, we investigate the joint subchannel, rate and power allocation for se...
Patrick Mitran, Long Le, Catherine Rosenberg, Andr...