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ICDE
2010
IEEE
170views Database» more  ICDE 2010»
16 years 6 months ago
Workload Driven Index Defragmentation
Decision support queries that scan large indexes can suffer significant degradation in I/O performance due to index fragmentation. DBAs rely on rules of thumb that use index size a...
Manoj Syamala, Vivek R. Narasayya
PERCOM
2007
ACM
16 years 6 months ago
The SkyLoc Floor Localization System
When a mobile user dials 911, a key to arriving to the emergency scene promptly is knowing the location of the mobile user. This paper presents SkyLoc, a GSM fingerprinting-based ...
Alex Varshavsky, Anthony LaMarca, Jeffrey Hightowe...
PERCOM
2006
ACM
16 years 6 months ago
A Multi-Commodity Flow Approach for Globally Aware Routing in Multi-Hop Wireless Networks
Routing in multi-hop wireless networks is typically greedy, with every connection attempting to establish a path that minimizes its number of hops. However, interference plays a m...
Vinay Kolar, Nael B. Abu-Ghazaleh
PERCOM
2006
ACM
16 years 6 months ago
Exploring Spatial Correlation for Link Quality Estimation in Wireless Sensor Networks
The irregularity in quality of wireless communication links poses significant research challenges in wireless sensor network design. Dynamic network conditions and environmental f...
Yingqi Xu, Wang-Chien Lee
PERCOM
2005
ACM
16 years 6 months ago
Scalable Service Discovery for MANET
Mobile Ad hoc NETworks (MANETs) conveniently complement infrastructure-based networks, allowing mobile nodes to spontaneously form a network and share their services, including br...
Françoise Sailhan, Valérie Issarny