1627 search results - page 125 / 326 » Service Variability Patterns |
GLOBECOM
2009
IEEE
15 years 1 months ago
2009
IEEE
In this paper, cognitive transmission under quality of service (QoS) constraints is studied. In the cognitive radio channel model, it is assumed that the secondary transmitter sen...
WMASH
2004
ACM
15 years 3 months ago
2004
ACM
In recent years, wireless Internet service providers (WISPs) have established thousands of WiFi hot spots in cafes, hotels and airports in order to offer to travelling Internet u...
JMM2
2008
14 years 9 months ago
2008
The current heterogeneous world of networks and terminals combined with the generalized mobility of users pose telecommunications operators and service providers the challenge of d...
EOR
2007
14 years 9 months ago
2007
In this paper, we consider a discrete-time finite-capacity queue with Bernoulli arrivals and batch services. In this queue, the single server has a variable service capacity and s...
HIP
2005
Springer
15 years 3 months ago
2005
Springer
Efforts to defend against automated attacks on e-commerce services have led to a new security protocol known as a CAPTCHA, a challenge designed to exploit gaps in the perceptual a...