Next generation networks with large bandwidth and long delay pose a major challenge to TCP performance, especially during the startup period. In this paper we evaluate the performance of TCP Reno/Newreno, Vegas and Hoe’s modification in large bandwidth delay networks. We propose a modified Slow-start mechanism, called Adaptive Start (AStart), to improve the startup performance in such networks....

With a scalable video server the number of simultaneous displays supported by the system increases as a function of additional resources Such a server can support those applications that strive to support either hundreds e g a hotel providing service to its guests or thousands e g a cable company providing service to a city of simultaneous displays The only di erence between the di erent system...

When a microorganism begins swimming from rest in a Newtonian fluid such as water, it rapidly attains its steady-state swimming speed since changes in the velocity field spread quickly when the Reynolds number is small. However, swimming microorganisms are commonly found or studied in complex fluids. Because these fluids have long relaxation times, the time to attain the steady-state swimming s...

Nowadays main infrastructure-as-a-service (IaaS) systems have been widely exploiting the template-based VM creation and template caching techniques to reduce the startup latency of user VM and service response time. Because the new VMs created from the templates do not always have the same software system as needed, further reconfigurations, that is, installing the missing software components a...

P2.5 plug-in hybrid electric vehicles (P2.5-PHEVs) exhibit high transmission efficiencies and no power interruption in the shifting mode switching process; thus, they have broad application prospects. The a PHEV under pure startup does not entail clutch, initial torque of motor is often set condition that maximum allowable slope should lead to backward sliding, which leads problems excessive je...