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TWC
2008
14 years 9 months ago
2008
Spectrum sensing is the key enabling technology for cognitive radio networks. The main objective of spectrum sensing is to provide more spectrum access opportunities to cognitive r...
ICCCN
2007
IEEE
15 years 4 months ago
2007
IEEE
— Wireless spectrum is a scare resource, while media streaming usually requires high end-to-end bandwidth. Media streaming in wireless ad hoc networks is therefore a particularly...
ICNP
2009
IEEE
15 years 4 months ago
2009
IEEE
—In this paper, we describe oCast, an energy-optimal multicast routing protocol for wireless sensor networks. The general minimum-energy multicast problem is NP-hard. Intermitten...
GLOBECOM
2008
IEEE
15 years 4 months ago
2008
IEEE
Abstract—We develop and evaluate a new method for estimating and optimizing various performance metrics for multihop wireless networks, including MANETs. We introduce an approxim...
INFOCOM
2005
IEEE
15 years 3 months ago
2005
IEEE
— In this paper, we model and characterize the performance of multihop radio networks in the presence of energy constraints, and design routing algorithms to optimally utilize th...