Sciweavers

102291 search results - page 20049 / 20459
» Computability in Computational Geometry
Sort
View
MOBICOM
2010
ACM
15 years 7 months ago
Exploiting temporal stability and low-rank structure for localization in mobile networks
Localization is a fundamental operation for many wireless networks. While GPS is widely used for location determination, it is unavailable in many environments either due to its h...
Swati Rallapalli, Lili Qiu, Yin Zhang, Yi-Chao Che...
MOBICOM
2010
ACM
15 years 7 months ago
Indoor localization without the pain
While WiFi-based indoor localization is attractive, the need for a significant degree of pre-deployment effort is a key challenge. In this paper, we ask the question: can we perfo...
Krishna Chintalapudi, Anand Padmanabha Iyer, Venka...
MOBICOM
2010
ACM
15 years 7 months ago
NVS: a virtualization substrate for WiMAX networks
This paper describes the design and implementation of a network virtualization substrate (NVS) for effective virtualization of wireless resources in WiMAX networks. Virtualization...
Ravi Kokku, Rajesh Mahindra, Honghai Zhang, Sampat...
MOBICOM
2010
ACM
15 years 7 months ago
The spaces between us: setting and maintaining boundaries in wireless spectrum access
Guardbands are designed to insulate transmissions on adjacent frequencies from mutual interference. As more devices in a given area are packed into orthogonal wireless channels, c...
Lei Yang, Ben Y. Zhao, Haitao Zheng
CCS
2010
ACM
15 years 7 months ago
@spam: the underground on 140 characters or less
In this work we present a characterization of spam on Twitter. We find that 8% of 25 million URLs posted to the site point to phishing, malware, and scams listed on popular blackl...
Chris Grier, Kurt Thomas, Vern Paxson, Michael Zha...
« Prev « First page 20049 / 20459 Last » Next »