I would like to take this opportunity to thank my colleagues, research fellows and research students who have worked or who are working with me together on many different projects related to broadband satellite communications and networks, satellite multicast, satellite security and so on. Also thanks to the European Union (EU) framework programmes, European Space agency and UK research council for funding those projects in the areas of broadband satellite communications and networks.
Then, I would like to take this opportunity to thank the publisher for their constant support.
Finally, I would like to thank my mother and my wife for their love and support during the years.
Zhili Sun