332 search results - page 66 / 67 » Opportunistic Spectrum Access in Cognitive Radio Networks |
TWC
2010
13 years 2 days ago
2010
Cooperative forwarding in wireless networks has shown to yield rate and diversity gains, but it incurs energy costs borne by the cooperating nodes. In this paper we consider an inc...
DSN
2003
IEEE
13 years 10 months ago
2003
IEEE
The presence of physical obstacles and radio interference results in the so called “shadow regions” in wireless networks. When a mobile station roams into a shadow region, it ...
ADHOC
2005
13 years 5 months ago
2005
The Internet has become ubiquitous and there has been tremendous growth in wireless communications in recent years. Many wireless communication techniques are commercially availab...
DAM
2006
13 years 5 months ago
2006
Chromatic scheduling polytopes arise as solution sets of the bandwidth allocation problem in certain radio access networks, supplyingwirelessaccesstovoice/datacommunicationnetwork...
TWC
2010
13 years 2 days ago
2010
In this paper, cooperative transmission protocols are proposed for wireless broadcast channels, a fundamental building block of wireless communication networks. The concepts of co...