In this paper, we analyze a multi-server queueing system with marked Markov arrival process of two types customers and phase-type distribution service time depending on the type customer. Customers both are assumed to be impatient renege from buffers after an exponentially distributed number times. The strategy flexible provisioning priorities is analyzed. It assumes randomized choice buffers, ...

We consider a feedback finite fluid queue with downward jumps, where the net flow rate and the jump size for the fluid are controlled by a background Markov chain with a finite state space. The finite means that the fluid queue has a finite buffer. The feedback means that the transition structure of the background process may change when the buffer content becomes empty or full. In this paper, ...

Major standards organizations, ITU, ETSI, and 3GPP have all adopted SIP as a basic signalling protocol for NGN. The current SIP overload control mechanism is unable to prevent congestion collapse and may spread the overload condition throughout the network. In this paper, we investigate one of the implementations of loss based overload control scheme developed by IETF work group which uses hyst...

On-demand streaming from a remote server through best-effort Internet poses several challenges because of network losses and variable delays. We provide a comprehensive review and develop taxonomy of current methods to enhance the delivery quality of multimedia streaming. We then develop new delivery models for a distributed architecture in which video is streamed from a remote server to an edg...

Queueing networks with finite buffers, multiple servers, arbitrary acyclic, series-parallel topologies, and general service time distributions are considered in this paper. An approach to optimally allocate servers to series, merge, and split topologies and their combinations is demonstrated. The methodology builds upon two-moment approximations to the service time distribution embedded in the ...

The currently available queue model for multilane traffic control is based on priority discipline. This priority discipline based technique is not suitable to be applied for multilane-multiple intersections, since all vehicles in each lane move simultaneously according to its respective signal phase. In view of this scenario, a new general traffic model for multilane-multiple intersections base...

This paper analyzes a finite buffer polling system with routing. Finite buffers are used to model the limited capacity of the system, and routing is used to represent the need for additional service. The most significant result of the analysis is the derivation of the generating function for queue length when buffer sizes are limited and a representation of the system workload. The queue length...

In the current Internet, many HTTP sessions are established between Web clients and servers via Web proxy servers. Since the Web proxy server accommodates lots of TCP connections from Web client hosts, and those to Web servers, it cannot show sufficient performance if the resources of the proxy server should be utilized effectively. In this paper, we propose a new resource management scheme for...