Giovanni Giambene – författare

Nowadays, satellites are used for a variety of purposes, including sensors and data collection, weather, maritime navigation and timing, Earth observation, and communications. In particular, satellite transmissions have an important role in telephone communications, television broadcasting, computer com- nications as well as navigation. The use of satellites for communications was a brilliant idea of Arthur C. ClarkewhowroteafamousarticleinOctober1945intheWirelessWorldjo- nal, entitled “Extra Terrestrial Relays - Can Rocket Stations Give Worldwide Coverage?” that described the use of manned satellites in orbits at 35,800 km altitude, thus having synchronous motion with respect to a point on the Earth. This article was the basis for the use of GEOstationary (GEO) sat- lites for telecommunications. Subsequently, he also proved the usefulness of satellites as compared to transatlantic telephone cables. Satellite communications deserve the special merit to allow connecting people at great distances by using the same (homogeneous) communication system and technology. Other very signi?cant advantages of the satellite - proach are: (i) easy fruition of both broadcast and multicast high bit-rate multimedia services;(ii)provision ofbackupcommunication servicesforusers on a global scale (this feature is very important for emergency scenarios and disaster relief activities); (iii) provision of services in areas that could not be reached by terrestrial infrastructures; (iv) support of high-mobility users.

This volume focuses on the air interface of mobile networks at different layers according to the OSI Reference Model. The authors provide an overview of several wireless communication systems including GPRS, 3G (in particular, W-CDMA and UTRA-TDD), HIPERLAN/2-type as well as mobile satellite systems. Then, a detailed analysis of radio resource management issues is carried out for these different cases. The book proposes suitable solutions for the efficient support of mixed traffics with variable bit-rate and busty characteristics guaranteeing suitable quality of service levels. Analytical tools for predicting the performance for each traffic class are also included. Finally, the impact of user mobility and channel errors on higher layer protocols is detailed, showing the possible alternative solutions. This work should be a useful reference book for GPRS, 3G and satellite networks systems engineers, for researchers and advanced students working and studying in the field of mobile communications.

Nowadays, satellites are used for a variety of purposes, including sensors and data collection, weather, maritime navigation and timing, Earth observation, and communications. In particular, satellite transmissions have an important role in telephone communications, television broadcasting, computer com- nications as well as navigation. The use of satellites for communications was a brilliant idea of Arthur C. ClarkewhowroteafamousarticleinOctober1945intheWirelessWorldjo- nal, entitled “Extra Terrestrial Relays - Can Rocket Stations Give Worldwide Coverage?” that described the use of manned satellites in orbits at 35,800 km altitude, thus having synchronous motion with respect to a point on the Earth. This article was the basis for the use of GEOstationary (GEO) sat- lites for telecommunications. Subsequently, he also proved the usefulness of satellites as compared to transatlantic telephone cables. Satellite communications deserve the special merit to allow connecting people at great distances by using the same (homogeneous) communication system and technology. Other very signi?cant advantages of the satellite - proach are: (i) easy fruition of both broadcast and multicast high bit-rate multimedia services;(ii)provision ofbackupcommunication servicesforusers on a global scale (this feature is very important for emergency scenarios and disaster relief activities); (iii) provision of services in areas that could not be reached by terrestrial infrastructures; (iv) support of high-mobility users.

The current book provides a final report of activity performed by the COST 290 Action, ‘‘Traffic and QoS Management in Wireless Multimedia Networks,’’ which ran from March 10, 2004, until June 3, 2008. After an introduction to the COST framework and the Action’s survey time-frame and activities, the main part of the book addresses a number of technical issues, which are structured into several chapters. All those issues have been carefully investigated by the COST 290 community during the course of the project – the information presented in this book can be regarded as ultimate for each particular topic; every open research issue addressed in the book is described carefully, corresponding existing studies are analyzed and results achieved by the COST 290 community are presented and compared, and further research directions are defined and analyzed. Because the book covers a wide area of research addressing issues of modern wired and wireless networking at different layers, starting from the physical layer up to the application layer, it can be recommended to be used by researchers and students to obtain a comprehensive analysis on particular research topics including related areas, to obtain broad and ultimate referencing, and to be advised on current open issues. COST 290 is one of the Actions of the European COST Program. Founded in 1971, COST is an intergovernmental framework for European Cooperation in the field of Scientific and Technical Research, allowing the coordination of nationally funded research on a European level.

Radio transmissions have opened new frontiers allowing the exchange of information with remote units. From the first applications of telegraphy and radio broadcast, wireless transmissions have obtained a great success with the widespread diffusion of mobile communications. We live in the communication era, where any kind of information must be easy accessible to any user at any time. Mobile communication systems are the technical support that allows the realization of such concepts. With the term mobile communications we embrace a set of technologies for radio transmissions, network protocols, mobile terminals and network elements. The widespread diffusion of wireless communications is making national borders irrelevant in the design, delivery and billing of services, thus requiring international coordination of standardization efforts in order to evolve regional systems towards global ones. Parallel to the evolution of radio-mobile systems, we assist to the massive diffusion of Internet network and contents, thus allowing many users on the earth to be interconnected and to exchange any kind of information, data, images and so on.

This book is aimed to provide a basic description of current networking technologies and protocols as well as to provide important tools for network performance analysis based on queuing theory.

This thoroughly revised textbook provides a description of current networking technologies and protocols as well as important new tools for network performance analysis based on queuing theory.

This thoroughly revised textbook provides a description of current networking technologies and protocols as well as important new tools for network performance analysis based on queuing theory.

This book constitutes the proceedings of the 7thInternational Conference on Wireless and Satellite Services, WiSATS 2015, heldin Bradford, UK, in July 2015. The conference was formerly known as theInternational Conference on Personal Satellite Services (PSATS) mainly coveringtopics in the satellite domain. As the scope of the conference widened toinclude wireless systems, the conference was renamed to WiSATS.The 29 revised papers were presented at theconference in three technical sessions and one special session on “Network Codingfor Satellites”. WiSATS 2015 also hosted two workshops along with the mainconference: The first workshop, Communication Applications in Smart Grid (CASG2015), focused on the merging area of using communication technology within theelectricity power grid for smart monitoring and control. The second workshop,Advanced Next-Generation Broadband Satellite Systems (BSS 2015), focused on theuse of satellite systems for providing next-generation broadbandservices.

This book constitutes the proceedings of the 8th International Conference on Wireless and Satellite Services, WiSATS 2016, held in Cardiff, UK, in September 2016. The conference was formerly known as the International Conference on Personal Satellite Services (PSATS) mainly covering topics in the satellite domain. As the scope of the conference widened to include wireless systems, the conference was renamed WiSATS. The 22 revised papers were selected from 32 submissions and cover a broad range of related state-of-the-art topics in antennas and mobile terminals, symbol precoding and network coding schemes, energy efficient strategies in satellite communication and cloud radio access networks, smart grid communication and optimization, security issues in vehicular ad-hoc networks (VANET) and delay tolerant net-works (DTN), interference mitigation in high throughput geostationary and non-geostationary satellite systems.

This book constitutes the proceedings of the 9th International Conference on Wireless and Satellite Services, WiSATS 2017, held in Oxford, UK, in September 2017. The conference was formerly known as the International Conference on Personal Satellite Services (PSATS) mainly covering topics in the satellite domain.  The aim of this conference is to bring together researchers, developers and practitioners from around the world in the field of wireless and satellite systems. The theme of WiSATS 2017 was on the means of using the wireless and satellite services directly to the user for personal communications, multimedia and location identification.