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IPSN
2010
Springer
15 years 6 months ago
Covering space for in-network sensor data storage
For in-network storage schemes, one maps data, indexed in a logical space, to the distributed sensor locations. When the physical sensor network has an irregular shape and possibl...
Rik Sarkar, Wei Zeng, Jie Gao, Xianfeng David Gu
DCOSS
2005
Springer
15 years 5 months ago
A Distributed Greedy Algorithm for Connected Sensor Cover in Dense Sensor Networks
Abstract. Achieving optimal battery usage and prolonged network lifetime are two of the most fundamental issues in wireless sensor networks. By exploiting node and data redundancy ...
Amitabha Ghosh, Sajal K. Das
SIROCCO
2001
15 years 1 months ago
Cycle Covering
This paper considers the design of a survivable WDM network based on covering the initial network with sub-networks, which are protected independently from each other. We focus on...
Jean-Claude Bermond, Lilian Chacon, David Coudert,...
ICALP
2010
Springer
15 years 4 months ago
SDP Gaps for 2-to-1 and Other Label-Cover Variants
In this paper we present semidefinite programming (SDP) gap instances for the following variants of the Label-Cover problem, closely related to the Unique Games Conjecture: (i) 2-...
Venkatesan Guruswami, Subhash Khot, Ryan O'Donnell...
COMGEO
2008
ACM
14 years 12 months ago
Covering point sets with two disjoint disks or squares
We study the following problem: Given a set of red points and a set of blue points on the plane, find two unit disks CR and CB with disjoint interiors such that the number of red ...
Sergio Cabello, José Miguel Díaz-B&a...