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PVLDB
2008
116views more  PVLDB 2008»
14 years 9 months ago
Tighter estimation using bottom k sketches
Summaries of massive data sets support approximate query processing over the original data. A basic aggregate over a set of records is the weight of subpopulations specified as a ...
Edith Cohen, Haim Kaplan
MOBIHOC
2006
ACM
15 years 9 months ago
Adaptive splitting protocols for RFID tag collision arbitration
Tag identification is an important tool in RFID systems with applications for monitoring and tracking. A RFID reader recognizes tags through communication over a shared wireless c...
Jihoon Myung, Wonjun Lee
95
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MOBISYS
2006
ACM
15 years 9 months ago
WiFiProfiler: cooperative diagnosis in wireless LANs
While 802.11-based wireless hotspots are proliferating, users often have little recourse when the network does not work or performs poorly for them. They are left trying to manual...
Ranveer Chandra, Venkata N. Padmanabhan, Ming Zhan...
SIGCOMM
2010
ACM
14 years 9 months ago
Contrabass: concurrent transmissions without coordination
A PHY and MAC protocol for MIMO concurrent transmissions, called Contrabass, is presented. Concurrent transmissions, also referred to as multi-user MIMO, are simultaneous transmis...
Sungro Yoon
SENSYS
2010
ACM
14 years 7 months ago
Mapping the urban wireless landscape with Argos
Passive monitoring is an important tool for measuring, troubleshooting, and protecting modern wireless networks. To date, WiFi monitoring has focused primarily on indoor settings ...
Ian Rose, Matt Welsh