This book offers the reader the keys for a successfulunderstanding, integration and usage of satellite systems inaddition to next generation terrestrial networks. The DVB-S2/RCSsystem is used to illustrate the integration challenges. Thepresentation uses a system approach, i.e. it tackles theterrestrial and satellite telecommunication systems'complexity with a high level approach, focusing on thesystems' components and on their interactions. Severalscenarios present the different paths that can be followed for theintegration of satellite systems in terrestrial networks. Qualityof Service management techniques in terrestrial and satellitesystems and the solutions to help them to interoperate areprovided. Inter-system mobility solutions and performance problemsare then addressed. The solutions proposed in this book have beendeveloped within the framework of European and French fundedresearch projects and tested with simulated or real testbeds.