Cataloged from PDF version of article.In this thesis, we study the problem of logical network design in telecommunication
networks. Given a set of nodes and a set of commodities, we aim to locate
lightpaths(links) between nodes and route the commodities over these lightpaths.
The cost to be minimized is the number of lightpaths used. The problem has capacity,
degree and delay constraints. An important characteristic of our problem
is that the commodities can not be split, therefore they must be routed on a
single path.
We present two integer programming formulations of the problem and consider
four sets of valid inequalities. Additionally, a relaxation of the problem is
presented to obtain a lower bound to the problem. Finally, we propose two algorithms
of generating good feasible solutions to the problem. Our results prove to
be close to the lower bounds.Kılınç, Mustafa RasimM.S
