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2012
13 years 9 months ago
Opportunistic Spectrum Access in Multiple-Primary-User Environments Under the Packet Collision Constraint
—Cognitive Radio (CR) technology has great potential to alleviate spectrum scarcity in wireless communications. It allows secondary users (SUs) to opportunistically access spectr...
Eric Jung, Xin Liu
CVPR
2012
IEEE
13 years 9 months ago
Globally optimal line clustering and vanishing point estimation in Manhattan world
The projections of world parallel lines in an image intersect at a single point called the vanishing point (VP). VPs are a key ingredient for various vision tasks including rotati...
Jean Charles Bazin, Yongduek Seo, Cédric De...
PODC
2012
ACM
13 years 9 months ago
Asynchronous failure detectors
Failure detectors — oracles that provide information about process crashes — are an important ion for crash tolerance in distributed systems. Although current failure-detector...
Alejandro Cornejo, Nancy A. Lynch, Srikanth Sastry
PODC
2012
ACM
13 years 9 months ago
Brief announcement: a calculus of policy-based routing systems
The BGP (Border Gateway Protocol) is the single inter-domain routing protocol that enables network operators within each autonomous system (AS) to influence routing decisions by ...
Anduo Wang, Carolyn L. Talcott, Alexander J. T. Gu...
ICDT
2012
ACM
226views Database» more  ICDT 2012»
13 years 9 months ago
Factorised representations of query results: size bounds and readability
We introduce a representation system for relational data based on algebraic factorisation using distributivity of product over union and commutativity of product and union. We giv...
Dan Olteanu, Jakub Zavodny