What does the article set out to do?What are the central concepts and are they clearly defined?

Review a journal article in association with Communications, Navigation and Surveillance (CNS). Correlate your review with the Global Air Traffic Management environment.

Objectives: What does the article set out to do?
Concepts: What are the central concepts and are they clearly defined?
Contribution: How well does the research advance Global Air Traffic Management knowledge, or how can this research be applied to the Global ATM environment?