Since the 5th edition of the book "SATELLITE COMMUNICATIONS SYSTEMS" was published in December 2009, there have been great advances related to satellite communications systems, technologies, network architectures and new requirements of services and applications. This welcome 6th edition of the book covers the state of the art satellite communication systems and technologies. It examines the relevant topics concerning communication and network technologies, concepts, techniques, algorithms and architectures which are important for students to learn the subject, engineers to design and develop...