175 search results - page 35 / 35 » Adaptive spectrum sensing for agile cognitive radios |
TWC
2011
13 years 9 days ago
2011
Abstract—Regulation in Europe and Japan requires the implementation of detect-and-avoid (DAA) techniques in some bands for the coexistence of licensed primary systems and seconda...
TSP
2008
13 years 4 months ago
2008
We address the issue of computing power spectral density (PSD) estimates at the output of a beamforming sensor array in the presence of strong moving interference. It is shown that...
TSP
2010
13 years 2 days ago
2010
The Lasso is a popular technique for joint estimation and continuous variable selection, especially well-suited for sparse and possibly under-determined linear regression problems....
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
Spectrum sensing is a challenging key component of the Cognitive Radio paradigm, since primary signals must be detected in the face of noise uncertainty and at signal-to-noise rat...
SIGCOMM
2005
ACM
13 years 11 months ago
2005
ACM
We consider wireless LANs such as IEEE 802.11 operating in the unlicensed radio spectrum. While their nominal bit rates have increased considerably, the MAC layer remains practica...