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WIOPT
2011
IEEE
9 years 3 months ago
A framework for femtocells to access both licensed and unlicensed bands
—Cellular operators have been offloading data traffic from their licensed bands to unlicensed bands through a large number of WiFi hotspots over the past years. Although this a...
Feilu Liu, Erdem Bala, Elza Erkip, Rui Yang
GLOBECOM
2007
IEEE
10 years 6 months ago
Frequency Agile Interference-Aware Channel Sounding for Dynamic Spectrum Access Networks
— In this paper, we propose a novel channel sounding technique, called the multicarrier direct sequence swept time delay cross-correlation (MC-DS-STDCC), which is designed to min...
Qi Chen, Alexander M. Wyglinski, Gary J. Minden
TMC
2008
180views more  TMC 2008»
9 years 11 months ago
OS-MAC: An Efficient MAC Protocol for Spectrum-Agile Wireless Networks
Wireless networks and devices have rapidly been gaining popularity over their wired counterparts. This popularity, in turn, has been generating an explosive and ever-increasing dem...
Bechir Hamdaoui, Kang G. Shin
TWC
2008
235views more  TWC 2008»
9 years 11 months ago
Optimal spectrum sensing framework for cognitive radio networks
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...
Won-Yeol Lee, Ian F. Akyildiz
JSAC
2008
157views more  JSAC 2008»
9 years 11 months ago
Spectrum Leasing to Cooperating Secondary Ad Hoc Networks
Abstract--The concept of cognitive radio (or secondary spectrum access) is currently under investigation as a promising paradigm to achieve efficient use of the frequency resource ...
Osvaldo Simeone, Igor Stanojev, Stefano Savazzi, Y...
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