Download Rapidshare Ebook The Symbian OS Architecture Sourcebook

The current Symbian Press list focuses very much on the small scale features of Symbian OS in a programming context. The Architecture Sourcebook is different.

It’s not a how-to book, it’s a ‘what and why’ book. And because it names names as it unwinds the design decisions which have shaped the OS, it is also a ‘who’ book. It will show where the OS came from, how it has evolved to be what it is, and provide a simple model for understanding what it is, how it is put together, and how to interface to it and work with it. It will also show why design decision were made, and will bring those decisions to life in the words of Symbian’s key architects and developers, giving an insider feel to the book as it weaves the “inside story” around the architectural presentation.

The book will describe the OS architecture in terms of the Symbian system model. It will show how the model breaks down the system into parts, what role the parts play in the system, how the parts are architected, what motivates their design, and how the design has evolved through the different releases of the system.

Key system concepts will be described; design patterns will be explored and related to those from other operating systems. The unique features of Symbian OS will be highlighted and their motivation and evolution traced and described.

The book will include a substantial reference section itemising the OS and its toolkit at component level and providing a reference entry for each component.

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Download Rapidshare Book IMS Multimedia Telephony over Cellular Systems

IMS Multimedia Telephony service has been standardized in 3GPP as the replacement of the circuit switched telephony service in cellular networks. The multimedia telephony service consists of several service components such as voice, video and text. ‘IMS Multimedia Telephony over Cellular Systems’ provides a comprehensive overview of the service that will enable enriched telephony for mobile users. Enriched telephony fulfils the user’s desire to communicate in new ways, for example by sharing pictures and video clips.

In addition to an overview of the Multimedia Telephony service, the book focuses on the modern media processing methods, which allows the quality of the packet switched voice and video telephony not only to match but also possibly exceed the quality of circuit switched telephony. Such key components as adaptive jitter buffering and adaptation of conversational media are explained in detail.

Key features:
Detailed description of how Multimedia Telephony sessions are set-up and controlled
Analysis showing the capacity and quality of VoIP and Multimedia Telephony in cellular networks
Coverage of other IMS services such as PoC specified by 3GPP and OMA
Description of suitable QoS and radio bearers for Multimedia Telephony
Explanation of the modern radio interface, especially High Speed Packet Access, which is based on concepts such as link adaptation and fast hybrid ARQ

The possibilities for the current and future standards covered in this book make it an indispensable resource for engineers, designers and researchers in VoIP, telecommunication companies and universities teaching and conducting research in telecommunications. It will also be of interest to managers needing an in-depth knowledge of the engineering and key issues of this complex technology, and students aspiring to develop a career in this area.

http://rapidshare.com/files/32493311/Wiley.IMS.Multimedia.Telephony.over.Cellular.System