Traditionally, optical networks have been designed with the objective of minimizing the capital expenditure (CAPEX) without considering the operative costs (OPEX), due for instance to energy consumption. However, the increase of energy consumption and corresponding costs and the challenges imposed by the environmental issues (such as the global warming and the limited oil reserves) are demandin...

The possibility of using flexible and cost-efficient commodity hardware instead of expensive custom hardware has triggered wide interest in software routers. Performance measurement and simulation are important approaches for identifying bottlenecks of such systems to predict and improve the performance. We measure the performance of software routers using current multi-core hardware architectu...

The major shortcoming of Grid middleware systems is the lack of economic-enhanced Grid services. These new services are necessary in order to let Grid users benefit from the properties of the Grid. Those properties comprise the availability of on-demand computational power, simplicity of access to resources, low cost of ownership, and a pay-for-use pricing model in addition to the already lever...

Three-dimensional (3D) integration is promising to provide dramatic performance and energy efficiency improvement to 3D logic-DRAM integrated computing system, but also poses significant challenge to the yield. To address this challenge, this paper explores a way to leverage logic-DRAM co-design to reactivate unused spares and thereby enable the cost-efficient technique to repair 3D integration...

Within the e-government process, needs are identified and people try to come up with ideas for the public sector that will increase the effectiveness as well as lead to cost savings. Consequently, many new electronic services are being developed. As a result, Quality of Service (QoS) becomes an even more critical issue in the domain of electronic services. This paper starts by a general discuss...

Nowadays, customers request more variation in a company’s product assortment leading to an increased amount of parts moving around on the shop floor. To cope with this tendency, a kitting process can be implemented. As it gathers the necessary parts into a container prior to assembly, kitting enables a more cost-efficient and qualitative production. However, the performance of this preparation ...