104 search results - page 7 / 21 » Sensing-based opportunistic channel access |
TMC
2011
13 years 4 months ago
2011
We consider the problem of optimal channel access to provide quality of service (QoS) for data transmission in cognitive vehicular networks. In such a network the vehicular nodes ...
CDC
2009
IEEE
14 years 2 months ago
2009
IEEE
We consider a class of restless multi-armed bandit problems that arises in multi-channel opportunistic communications, where channels are modeled as independent and stochastically...
MOBICOM
2009
ACM
14 years 4 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...
GLOBECOM
2007
IEEE
14 years 4 months ago
2007
IEEE
—This paper presents an opportunistic feedback (OF) protocol that reduces the amount of channel-state-information (CSI) feedback for the OFDMA downlink system. The OF protocol as...
GLOBECOM
2008
IEEE
14 years 4 months ago
2008
IEEE
Abstract— We present a collaborative algorithm to enable opportunistic spectrum access for cognitive radios in the presence of multiple co-channel transmitters. A spectrum hole d...