490 research outputs found
Statistical multiplexing and connection admission control in ATM networks
Asynchronous Transfer Mode (ATM) technology is widely employed for the transport of network traffic, and has the potential to be the base technology for the next generation of global communications. Connection Admission Control (CAC) is the effective traffic control mechanism which is necessary in ATM networks in order to avoid possible congestion at each network node and to achieve the Quality-of-Service (QoS) requested by each connection. CAC determines whether or not the network should accept a new connection. A new connection will only be accepted if the network has sufficient resources to meet its QoS requirements without affecting the QoS commitments already made by the network for existing connections. The design of a high-performance CAC is based on an in-depth understanding of the statistical characteristics of the traffic sources
Dynamical phase transition in the occupation fraction statistics for non-crossing Brownian particles
We consider a system of non-crossing Brownian particles in one dimension.
We find the exact rate function that describes the long-time large deviation
statistics of their occupation fraction in a finite interval in space.
Remarkably, we find that, for any general , the system undergoes
dynamical phase transitions of second order. The transitions are
the boundaries of phases that correspond to different numbers of particles
which are in the vicinity of the interval throughout the dynamics. We achieve
this by mapping the problem to that of finding the ground-state energy for
noninteracting spinless fermions in a square-well potential. The phases
correspond to different numbers of single-body bound states for the quantum
problem. We also study the process conditioned on a given occupation fraction
and the large- limiting behavior.Comment: 11 pages, 4 figure
Application of learning algorithms to traffic management in integrated services networks.
SIGLEAvailable from British Library Document Supply Centre-DSC:DXN027131 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
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