122 search results - page 11 / 25 » Cognitive networks achieve throughput scaling of a homogeneo... |
LCN
2006
IEEE
14 years 1 months ago
2006
IEEE
This paper examines how various carrier-sensing schemes affect the exposed-node (EN) and hidden-node (HN) phenomena. In the process, we identify a new carrier-sensing mechanism fo...
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
Optimized opportunistic multicast scheduling (OMS) has been studied previously by the authors for homogeneous cellular networks, where the problem of efficiently transmitting a co...
JCST
2008
13 years 7 months ago
2008
The allocation of bandwidth to unlicensed users, without significantly increasing the interference on the existing licensed users, is a challenge for Ultra Wideband (UWB) networks....
JSAC
2008
13 years 7 months ago
2008
A cognitive radio (CR) network is often described as a secondary network operating in a frequency band originally licensed/allocated to a primary network consisting of one or multi...
GLOBECOM
2008
IEEE
14 years 1 months ago
2008
IEEE
—Cooperative spectrum sensing has been shown to greatly improve the sensing performance in cognitive radio networks. However, if the cognitive users belong to different service p...