49 search results - page 7 / 10 » Cooperative Multi-relay Scheme for Secondary Spectrum Access |
100
click to vote
JCM
2007
14 years 11 months ago
2007
— Spectrum scarcity is becoming a major issue for service providers interested in either deploying new services or enhancing the capacity for existing applications. On the other ...
113
click to vote
WCNC
2010
IEEE
15 years 3 months ago
2010
IEEE
Abstract—In cognitive mobile multihop relay (CMMR) network, the mobile user as the primary user is allocated with the channel for transmitting data. Relay station as the secondar...
GLOBECOM
2008
IEEE
15 years 22 days ago
2008
IEEE
—Conflict free spectrum allocation for secondary users in cognitive networks is a challenging problem, since the accessible spectrum is shared among users. The problem becomes to...
CORR
2011
Springer
14 years 6 months ago
2011
Springer
—We propose a dynamic spectrum access scheme where secondary users recommend “good” channels to each other and access accordingly. We formulate the problem as an average rewa...
113
click to vote
JSAC
2011
14 years 6 months ago
2011
—In this paper, opportunistic multiple access to the under-utilized channel resources is investigated. Exploiting source burstiness, secondary cognitive nodes utilizes primary no...