Web content hosting, in which a Web server stores and provides Web access to documents for different customers, is becoming increasingly common. For example, a web server can host webpages for several different companies and individuals. Traditionally, Web Service Providers (WSPs) provide all customers with the same level of performance (best-effort service). Most service differentiation has be...

Queueing systems and networks with negative customers have been a subject of extensive research for two decades providing means to describe work-removal phenomena in different communication and information processing systems. This paper is the continuation of research devoted to elaboration of mathematical techniques for performance evaluation of queueing systems with different types of negativ...

The evolution in the way that businesses approach markets has been a frequent literature topic in the last few years. In the high-tech industry, even the most successful companies have been mainly focused on the features of their products and processes, trying to develop their technology to gain a price / performance advantage, and thereby protect or increase market share. However, this approac...

W explore using an option contract as a price discrimination tool under demand uncertainty. In our capacity game model, a monopolistic supplier has to build capacity before observing the uncertain demand. The demand is generated by two potential customers, who privately know their own types. The types could be either high or low, differing in willingness to pay for each unit of demand. To discr...

This paper presents an approach for scheduling of customers’ orders in factories of plastic injection machines (FPIM) as a case of realworld flexible job shop scheduling problem (FJSS). The objective of discussed work is to provide FPIM with high business speed which implies (a) providing a customers with convenient way for remote online access to the factory’s database and (b) developing an ef...

Organizations offer efficient services to their customers through cloud. These services can either be a batch or transactional workloads. To offer a real-time service, there comes a need to schedule these workloads in an efficient way. An idea to consolidate these workloads enables us to cut down the energy consumption and infrastructure cost. It will be harder to consolidate both these workloa...

Customer classification and prioritization are commonly used in many applications to provide queue preferential service. Their influence on queuing systems has been thoroughly studied from the delay distribution perspective. However, the fairness aspects, which are inherent to any preferential system and highly important to customers, have hardly been studied and not been quantified to date. In...

In this paper we study a queueing model with a server that changes its service rate according to a nite birth and death process. The object of interest is the simultaneous distribution of the number of customers in the system and the state of the server in steady-state. The model can be applied to the performance analysis of (low priority) Available Bit Rate (ABR) traac at an ATM switch in the ...

In this paper we study a queueing model with a server that changes its service rate according to a nite birth and death process. The object of interest is the simultaneous distribution of the number of customers in the system and the state of the server in steady-state. The model can be applied to the performance analysis of (low priority) Available Bit Rate (ABR) tra c at an ATM switch in the ...