232 search results - page 16 / 47 » A Secondary Market for Spectrum |
WCNC
2008
IEEE
15 years 4 months ago
2008
IEEE
— In an opportunistic spectrum sharing system, secondary users equipped with cognitive radios opportunistically access spectrum that is not being used by the primary users, i.e.,...
GLOBECOM
2010
IEEE
14 years 7 months ago
2010
IEEE
The major requirement for Cognitive Radio (CR) based opportunistic spectrum re-usage is reliable protection of the primary communication. This calls for a reliable detection of the...
TMC
2010
14 years 8 months ago
2010
—In this paper, we consider DS-CDMA/OFDM spectrum sharing systems and obtain the achievable capacity of the secondary service under different subchannel selection policies in the...
ICC
2007
IEEE
15 years 4 months ago
2007
IEEE
We consider opportunistic spectrum access for secondary users over multiple channels whose occupancy by primary users is modeled as discrete-time Markov processes. Due to hardware...
CISS
2010
IEEE
14 years 1 months ago
2010
IEEE
—This paper addresses optimal spectrum sensing in cognitive radio networks considering its system level cost that accounts for the local processing cost of sensing (sample collec...