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MOBIHOC
2008
ACM
14 years 7 months ago
Collaborative query processing among heterogeneous sensor networks
Demands on better interacting with physical world require an effective and comprehensive collaboration mechanism among multiple heterogeneous sensor networks. Previous works mainl...
Yuan He, Mo Li, Yunhao Liu
SAINT
2008
IEEE
14 years 2 months ago
Dynamic Relay Node Placement in Wireless Sensor Networks
In this paper we present an online algorithm that attacks the problem of placing relay nodes in regions where high localized congestion is detected. Congestion refers to the netwo...
Jorge Mena, Vana Kalogeraki
DMSN
2006
ACM
14 years 1 months ago
Impact of multi-query optimization in sensor networks
In this paper, we study the problem of processing multiple queries in a wireless sensor network. We focus on multiquery optimization at the base station level to minimize the numb...
Shili Xiang, Hock-Beng Lim, Kian-Lee Tan
IPPS
2005
IEEE
14 years 1 months ago
Partial Clustering: Maintaining Connectivity in a Low Duty-Cycled Dense Wireless Sensor Network
— We consider a dense wireless sensor network where the radio transceivers of the sensor nodes are heavily duty-cycled in order to conserve energy. The chief purpose of the senso...
Chih-fan Hsin, Mingyan Liu
MOBIHOC
2003
ACM
14 years 7 months ago
Connected sensor cover: self-organization of sensor networks for efficient query execution
Spatial query execution is an essential functionality of a sensor network, where a query gathers sensor data within a specific geographic region. Redundancy within a sensor networ...
Himanshu Gupta, Samir R. Das, Quinyi Gu