I have read the paper Mathematical Modeling for Optimal Design of In-Building Distributed Antenna Systems by Lei Chen and Di Yuan, where the authors propose two models to solve the problem of optimal design of in-building distributed antenna systems.
http://www.diva-portal.org/smash/get/diva2:609178/FULLTEXT01.pdf
The first model is a flow formulation called DAS-F and the second is called Multi-tree formulation DAS-MT.
I started wondering whether or not the mathematical models could be solved by using GAMS.
Is it possible? Are there any codes in GAMS that look alike?