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CORR
2010
Springer
72views Education» more  CORR 2010»
15 years 4 months ago
Exploring Simple Triangular and Hexagonal Grid Polygons Online
We examine online grid covering with hexagonal and triangular grids. For arbitrary environments without obstacles we provide a strategy that produces tours of length S C + 1 4 E ...
Daniel Herrmann, Tom Kamphans, Elmar Langetepe
ANTSW
2010
Springer
15 years 1 months ago
Short and Robust Communication Paths in Dynamic Wireless Networks
Abstract. We consider the problem of finding and maintaining communication paths in wireless mobile ad hoc networks (MANET). We consider this problem as a bi-objective problem when...
Yoann Pigné, Frédéric Guinand
CORR
2011
Springer
156views Education» more  CORR 2011»
15 years 1 months ago
Impossibility of Succinct Quantum Proofs for Collision-Freeness
We show that any quantum algorithm to decide whether a function f : [n] → [n] is a permutation or far from a permutation must make Ω n1/3 /w queries to f, even if the algorith...
Scott Aaronson
MP
2010
132views more  MP 2010»
15 years 1 months ago
Exploiting group symmetry in semidefinite programming relaxations of the quadratic assignment problem
We consider semidefinite programming relaxations of the quadratic assignment problem, and show how to exploit group symmetry in the problem data. Thus we are able to compute the b...
Etienne de Klerk, Renata Sotirov
TIT
2010
87views Education» more  TIT 2010»
15 years 1 months ago
Silence-based communication
We consider a power-efficient communication model for wireless sensor networks where silence is used to convey information. We study the average-case and worstcase complexities of ...
Anand K. Dhulipala, Christina Fragouli, Alon Orlit...