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» Clustering for opportunistic communication
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CHI
2004
ACM
16 years 6 months ago
One-hundred days in an activity-centric collaboration environment based on shared objects
This paper describes a new collaboration technology that is carefully poised between informal, ad hoc, easy-to-initiate collaborative tools, vs. more formal, structured, and higho...
Michael J. Muller, Werner Geyer, Beth Brownholtz, ...
MOBIHOC
2007
ACM
16 years 5 months ago
Allocating dynamic time-spectrum blocks in cognitive radio networks
A number of studies have shown the abundance of unused spectrum in the TV bands. This is in stark contrast to the overcrowding of wireless devices in the ISM bands. A recent trend...
Yuan Yuan, Paramvir Bahl, Ranveer Chandra, Thomas ...
GLOBECOM
2009
IEEE
16 years 1 months ago
Dynamic Power Management in Cognitive Radio Networks Based on Constrained Stochastic Games
Abstract—Recent studies have been conducted to indicate the ineffective usage of licensed bands due to the static spectrum allocation. In order to improve the spectrum utilizatio...
Chia-Wei Wang, Yu-Pin Hsu, Kai-Ten Feng
INFOCOM
2009
IEEE
16 years 28 days ago
Delivery Properties of Human Social Networks
—The recently proposed Pocket Switched Network paradigm takes advantage of human social contacts to opportunistically create data paths over time. We examine how effective such a...
Nishanth Sastry, Karen R. Sollins, Jon Crowcroft
INFOCOM
2009
IEEE
16 years 28 days ago
Optimal Sensing-Transmission Structure for Dynamic Spectrum Access
—In cognitive wireless networks where secondary users (SUs) opportunistically access spectral white spaces of primary users (PUs), there exists an inherent tradeoff between sensi...
Senhua Huang, Xin Liu, Zhi Ding