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MOBIDE
2010
ACM
13 years 9 months ago
Minimum-hot-spot query trees for wireless sensor networks
We propose a distributed algorithm to construct a balanced communication tree that serves in gathering data from the network nodes to a sink. Our algorithm constructs a near-optim...
Georgios Chatzimilioudis, Demetrios Zeinalipour-Ya...
ADHOCNETS
2009
Springer
14 years 3 months ago
Improved Topology Control Algorithms for Simple Mobile Networks
Topology control is the problem of assigning powers to the nodes of an ad hoc network so as to create a specified network topology while minimizing the energy consumed by the netw...
Fei Che, Errol L. Lloyd, Liang Zhao
ISCC
2009
IEEE
254views Communications» more  ISCC 2009»
14 years 4 months ago
Monitoring connectivity in wireless sensor networks
It is important to have continuous connectivity in a wireless sensor network after it is deployed in a hostile environment. However, such networks are constrained by the low usert...
Benahmed Khelifa, Hafid Haffaf, Madjid Merabti, Da...
SECON
2008
IEEE
14 years 3 months ago
Optimal Buffer Management Policies for Delay Tolerant Networks
—Delay Tolerant Networks are wireless networks where disconnections may occur frequently due to propagation phenomena, node mobility, and power outages. Propagation delays may al...
Amir Krifa, Chadi Barakat, Thrasyvoulos Spyropoulo...
APPROX
2006
Springer
234views Algorithms» more  APPROX 2006»
14 years 1 months ago
Constant-Factor Approximation for Minimum-Weight (Connected) Dominating Sets in Unit Disk Graphs
For a given graph with weighted vertices, the goal of the minimum-weight dominating set problem is to compute a vertex subset of smallest weight such that each vertex of the graph...
Christoph Ambühl, Thomas Erlebach, Matú...