The book could, therefore, be viewed as a Case Study, in which many of the latest concepts in mobility solutions, network design techniques and Internet technologies are presented. It provides a coherent and original contribution to the understanding of the evolution of space/terrestrial mobile networks to a heterogeneous environment in which the Internet will play a major role. The SUITED project has generated a considerable amount of interest due to the timeliness and quality of its work. The SUITED project has addressed a number of technical issues that are very much state-of-the-art. The presentation of such material in the form of a design of a real network provides a unique and very relevant body of material. There is no book available that addresses to any level of detail, the important topic of heterogeneous networks and the underlying technologies that make this concept possible.