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SMS and MMS Interworking in Mobile Networks
Here is a comprehensive and highly practical guide to SMS and MMS interworking in GSM, TDMA, and CDMA mobile communications systems. The text provides the knowledge needed to plan SMS or MMS interworking both commercially and technically, and to develop software for SMS and MMS centers.
Practical LTE based security forces PMR networks
Security forces PMR networks are moving from proprietary technologies for their Mission Critical Push-To-Talk basic service, and their data services which must provide large bandwidth real-time access, to the databases. LTE Based is adopted with backup access to public MNOs to complement their own radio coverage. Specific technologies such as multicasting of visio are required so the MCPTT works within a restricted bandwidth. The need to be able to change the main MNOs to provide resilient coverage requires specific choices of SIM cards, with OTAble security domains. Practical LTE Based Security Forces PMR Networks assumes that the reader has a basic knowledge of the 4G network architecture ...
Virtual Roaming Data Services and Seamless Technology Change
The subject is “Virtual Roaming for data services” and “Seamless Technology change” also called “Number Continuity”.“Virtual Roaming for voice and SMS” was covered in one of the author's previous book. “Virtual Roaming” means that it allows a subscriber to visit a network which his home network does not have an agreement with. The “Seamless Technology change” allows a user to keep all his services including reception of calls and SMS sent to his usual number when he switches his GSM to a Satellite phone or to WiFi. The implementation of Seamless Technology change uses the SS7 Roaming Hub and GTP Hubs technology explained in the first part of the book. The book also co...
Virtual Roaming Systems for GSM, GPRS and UMTS
This book provides a detailed technical guide to the virtual and optimised roaming systems for mobile networks Written by a pioneer in the field, this book focuses on the implementation of virtual roaming systems. It generalizes the previous SS7 SMS interworking architectures to voice and data, GPRS, and 3G virtual roaming; extending the discussion of virtual roaming to include location based services, optimal routing and 4G perspectives. The author provides a thorough and detailed technical explanation of the topic covering subjects such as ‘Over the Air’ (OTA) provisioning and detailed geo-localisation systems in a virtual roaming environment. Finally, this book addresses the applicati...
Cryptographie classique - De la préparation du concours Alkindi jusqu’aux épreuves du Bac
Cet ouvrage s’adresse aux professeurs de mathématiques des lycées et collèges, aux candidats du concours de cryptographie Alkindi, et aux lycéens préparant le bac scientifique. Les énoncés et TOUS les corrigés commentés des 38 sujets finaux des concours Alkindi 2016-2021 sont fournis. Les corrigés 2021 sont dus à Romain Giuge, professeur agrégé de Mathématiques. Celui de la fameuse épreuve finale de 2020, fait pour être impossible, a été livré par la DGSE qui l'avait proposé, et celui de 2019, déduit de celui-ci, le principe de la méthode étant le même. Les principaux programmes Alkindi en Python sont inclus. Pour le Bac, une boîte à outils de programmes Python est proposée aux enseignants afin de faciliter leur création de Travaux Pratiques de cryptographie.
Thermal Analysis and Thermodynamics
This introduction to thermodynamics discusses typical phase diagrams features and presents the wide range of techniques such as Differential Scanning Calorimetry, Thermogravimetry and others. In the last part the author brings many examples for typical practical problems often solved by thermal analysis. As an instructive guideline for practitioners the work reveals the connection between experimental data and theoretical model and vice versa.
Long Term Evolution in Bullets
"Complete text is presented as bullet points, ... content includes both introductory and advanced topics, ... based upon release 8 of the 3GPP specifications"--P. [4] of cover.
