193 search results - page 30 / 39 » Dynamic spectrum access policies for cognitive radio |
MOBICOM
2010
ACM
13 years 7 months ago
2010
ACM
Guardbands are designed to insulate transmissions on adjacent frequencies from mutual interference. As more devices in a given area are packed into orthogonal wireless channels, c...
TWC
2010
13 years 2 months ago
2010
Abstract--This letter analyzes the impact, from a networklayer perspective, of having a single cognitive radio transmitterreceiver pair share the spectrum with multiple primary use...
GLOBECOM
2009
IEEE
13 years 11 months ago
2009
IEEE
We consider a problem where two selfish cognitive radio users try to share two channels on which they each have potentially different valuations. We first formulate the problem as ...
MOBICOM
2009
ACM
14 years 2 months ago
2009
ACM
Establishing a control channel for medium access control is a challenging problem in multi-channel and dynamic spectrum access (DSA) networks. In the design of multi-channel MAC p...
CORR
2008
Springer
13 years 7 months ago
2008
Springer
In this paper, we consider a cognitive radio (CR) network in which the unlicensed (secondary) users are allowed to concurrently access the spectrum allocated to the licensed (prim...