This book comprises the proceedings of the Third European Workshop on Mobile / Personal Satellite Communications, (EMPS 1998). It provides an overview of current achievements of the mobile satellite world, as they are perceived by experts from around the world. The reader gains a unique insight into the scientific, technical, industrial and service issues that are dominating the field of Satellite Communications today. The following areas are covered: Systems and Services Network and Mobility Management Mobility and Multimedia Propagation Channel Multiple Access Modulation and Coding Quality of Service Simulation Tools and Modelling Satellite Personal Communication Services is a rapidly expanding and significant area within the field of Satellite Communications, and this book reports the latest research and findings from specialists at the cutting edge of developments.