25 search results - page 4 / 5 » Cooperative Sequential Spectrum Sensing Algorithms for OFDM |
EJWCN
2011
13 years 22 days ago
2011
Recently, the growing success of new wireless applications and services has led to overcrowded licensed bands, inducing the governmental regulatory agencies to consider more flex...
TSP
2010
13 years 13 days ago
2010
Abstract--A cooperative approach to the sensing task of wireless cognitive radio (CR) networks is introduced based on a basis expansion model of the power spectral density (PSD) ma...
INFOCOM
2009
IEEE
14 years 12 days ago
2009
IEEE
— Collaborative spectrum sensing among secondary users (SUs) in cognitive networks is shown to yield a significant performance improvement. However, there exists an inherent tra...
ICASSP
2011
IEEE
12 years 9 months ago
2011
IEEE
We propose a compressive method for tracking doubly selective channels within multicarrier systems, including OFDM systems. Using the recently introduced concept of modified comp...
INFOCOM
2012
IEEE
11 years 8 months ago
2012
IEEE
—Cognitive Radio Networks allow unlicensed users to opportunistically access the licensed spectrum without causing disruptive interference to the primary users (PUs). One of the ...