We consider a discrete intermodal network design problem for freight transportation, in
which the network planner needs to determine whether or not to build up or expand a link to …

We consider the design of a multicommodity flow network, in which point-to-point demands
are routed across the network subject to link capacity restrictions. Such a design must build …

Data center networks provide the physical infrastructure that hosts Internet‐related services
and cloud computing. Designing data center networks properly is imperative for Internet …

A mixed-integer non-linear model is proposed to optimize jointly the assignment of
capacities and flows (the CFA problem) in a communication network. Discrete capacities are …

We consider here a multicommodity flow network optimization problem with non-convex but
piecewise convex arc cost functions. We derive complete optimality conditions for local …

We address a class of particularly hard-to-solve combinatorial optimization problems,
namely that of multicommodity network optimization when the link cost functions are …

In this paper we consider a multicommodity network flow problem with flow routing and
discrete capacity expansion decisions. The problem involves trading off congestion and …

This chapter describes the main results of two decades of experience in studying and
applying optimization models in the telecommunications sector. The Brazilian information …

We introduce in this paper an optimal method for tree network design avoiding congestion.
We see this problem arising in telecommunication and transportation networks as a flow …

We present a survey on nonconvex models and algorithms for multicommodity network
design problems. We put in perspective the alternative modelling of these problems …