I am interested in making contact with researchers who are working in the field of optimal placement and in particular optimal placement of weather radar networks.
Have you looked around on here for people working on network topology problems? I know this is a big field for Amazon and some of the other large tech players and there are a few good papers out there using genetic algorithms to optimize the problem. If you don't get any specific hits it would be worth reaching out to those specific researchers.
I'm working on this problem too, is the number of sensors (or sink) nodes defined or not?? there is numerous study in this domain. If the number on nodes is defined at the begining the problem can be solved using ILP (integer linear programation) to get exact solution (see works done by A. PINTO in 2008, and E. Guney). If the number of nodes is not know, this will be a NP-Hard problem and you will use metaheuristics algorithms such as genetic algorithms to solve it. I can send you some thesis on this domain, the most interresting one (for me) is "A novel methodology for planninng reliable wireless sensor networks" Danpin He who used multi-objective genetic algorithm to plan WSN in indoor environment.
I remain at your disposal for further information
Is there anyone working on optimal placement, specifically in networks? - ResearchGate. Available from: https://www.researchgate.net/post/Is_there_anyone_working_on_optimal_placement_specifically_in_networks#57189a54dc332d2e5706b441 [accessed Apr 21, 2016].