Sciweavers

1061 search results - page 64 / 213
» Voice over Sensor Networks
Sort
View
ICDE
2005
IEEE
108views Database» more  ICDE 2005»
14 years 9 months ago
Range Efficient Computation of F0 over Massive Data Streams
Efficient one-pass computation of F0, the number of distinct elements in a data stream, is a fundamental problem arising in various contexts in databases and networking. We consid...
Pavan Aduri, Srikanta Tirthapura
WWW
2008
ACM
14 years 8 months ago
Temporal views over rdf data
Supporting fast access to large RDF stores has been one of key challenges for enabling use of the Semantic Web in real-life applications, more so in sensor-based systems where lar...
Craig Sayers, Geetha Manjunath, K. S. Venugopal, R...
MOBIDE
2006
ACM
14 years 2 months ago
GPS-Free node localization in mobile wireless sensor networks
An important problem in mobile ad-hoc wireless sensor networks is the localization of individual nodes, i.e., each node’s awareness of its position relative to the network. In t...
Hüseyin Akcan, Vassil Kriakov, Hervé B...
ISCC
2006
IEEE
147views Communications» more  ISCC 2006»
14 years 2 months ago
An Analytical Tool to Assess Readiness of Existing Networks for Deploying IP Telephony
Deploying IP telephony or voice over IP (VoIP) is a major and challenging task. This paper describes an analytical approach and tool to assess the readiness of existing IP network...
Khaled Salah, M. Almashari
IWIA
2006
IEEE
14 years 2 months ago
Present and Future Challenges Concerning DoS-attacks against PSAPs in VoIP Networks
Nowadays, voice over IP (VoIP) telephony networks are connected to classic public switched telephony networks (PSTNs). Emergency calls from VoIP peers to PSTN public service answe...
Nils Aschenbruck, Matthias Frank, Peter Martini, J...