This book constitutes the thoroughly refereed post-conference proceedings of the 4th
International ICST Conference on Personal Satellite Services PSATS 2012 held in Bradford UK
in March 2012. The 22 revised full papers presented together with 4 poster sessions were
carefully reviewed and selected from various submissions. The papers cover topics such as radio
resource management spectrum interference management and antenna design mobility and security
and protocol performance in satellite networks.
