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ICC
2009
IEEE
15 years 4 months ago
2009
IEEE
—A major performance-limiting factor in terrestrial optical wireless (OW) systems is turbulence-induced fading. Exploiting the additional degrees of freedom in the spatial dimens...
ICC
2009
IEEE
15 years 4 months ago
2009
IEEE
—In this paper, quality of service (QoS) provisioning for voice service over cognitive radio networks is considered. As voice traffic is sensitive to delay, the presence of prim...
ICC
2009
IEEE
15 years 4 months ago
2009
IEEE
Abstract—In multiuser diversity systems, the impact of largescale fading on the total system performance such as link quality and system power has not been widely addressed. Cons...
INFOCOM
2009
IEEE
15 years 4 months ago
2009
IEEE
—Wireless networks are increasingly used to carry applications with QoS constraints. Two problems arise when dealing with traffic with QoS constraints. One is admission control,...
INFOCOM
2009
IEEE
15 years 4 months ago
2009
IEEE
—Cognitive radio has been proposed in recent years to promote the spectrum utilization by exploiting the existence of spectrum holes. The heterogeneity of both spectrum availabil...