This paper considers the QoS design of packet–switching networks. We propose a packet network design and planning approach that considers the dynamics of packet networks, as well as the effect of protocols at the different layers of the Internet architecture on the e2e QoS experienced by end users. Subproblems are derived from a general design problem and a collection of heuristic algorithms ar...

this paper presents a framework for long term transmission expansion planning in competitive, electricity markets. transmission lines and phase shifters are taken into account as expansion options. maximization of the network users' benefits, with satisfying security constraints are considered as the criterion for transmission expansion planning. the elements of the objective function are the...

Renewable Energy Sources (RESs) integration strengthens the need for a power network that can robustly handle system’s uncertain scenarios. This paper proposes first nonlinear novel dual-based bi-level approach robust AC Transmission Expansion Planning (TEP) with uncertainties in RES generations and loads. It utilizes convex relaxation is solved by Benders Decomposition (BD), where master deter...

Optimal distribution substation placement is one of the major components of optimal distribution system planning projects. In this paper optimal substation placement problem is solved using Imperialist Competitive Algorithm (ICA) as a new developed heuristic optimization algorithm. This procedure gives the optimal size, site and installation time of medium voltage substation, using their relate...

The paper presents an approach for the topology design of a Hungarian public ATM network on top of the Hungarian SDH network with STM-4 rings on the lower level, and STM-16 mesh on the higher level. The approach is being implemented in the XPLANET tool developed for the support of the network planning activities of the Hungarian Telecommunications Company Ltd. Based on the planning approach the...

In this paper, we consider the problem of network design for hazardous material transportation where the government designates a network, and the carriers choose the routes on the network. We model the problem as a bilevel network flow formulation and analyze the bilevel design problem by comparing it to three other decision scenarios. The bilevel model is difficult to solve and may be ill-pose...

In conservation planning, the data related to size, growth and diffusion of populations is sparse, hard to collect and unreliable at best. If and when the data is readily available, it is not of sufficient quantity to construct a probability distribution. In such a scenario, applying deterministic or stochastic approaches to the problems in conservation planning either ignores the uncertainty c...

Preventive healthcare aims at reducing the likelihood and severity of potentially life-threatening illnesses by protection and early detection. In this paper, a bi-objective mathematical model is proposed to design a network of preventive healthcare facilities so as to minimize total travel and waiting time as well as establishment and staffing cost. Moreover, each facility acts as M/M/1 queuin...