12714 search results - page 2233 / 2543 » Designing Data Warehouses |
239
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MOBIHOC
2005
ACM
16 years 6 months ago
2005
ACM
We consider a wireless sensor network in which sensors are grouped into clusters, each with its own cluster head (CH). Each CH collects data from sensors in its cluster and relays...
281
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MOBIHOC
2002
ACM
16 years 6 months ago
2002
ACM
Current algorithms for minimum-energy routing in wireless networks typically select minimum-cost multi-hop paths. In scenarios where the transmission power is fixed, each link has...
168
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MOBIHOC
2003
ACM
16 years 6 months ago
2003
ACM
The development of lightweight sensing and communication protocols is a key requirement for designing resource constrained sensor networks. This paper introduces a set of efficien...
187
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MOBIHOC
2003
ACM
16 years 6 months ago
2003
ACM
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...
184
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EUROSYS
2007
ACM
16 years 3 months ago
2007
ACM
In most modern operating systems, a process is a -protected abstraction for isolating code and data. This protection, however, is selective. Many common mechanisms—dynamic code ...