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Power Efficiency in Broadband Wireless Communications

Power Efficiency in Broadband Wireless Communications focuses on the improvement of power efficiency in wireless communication systems, especially of mobile devices. Reviewing cutting-edge techniques for conserving power and boosting power efficiency, the book examines various technologies and their impact on consumer devices. It considers each technology, first by introducing the main physical layer components in recent wireless communication systems along with their shortcomings, and then proposing solutions for overcoming these shortcomings. The book covers orthogonal frequency division multiplexing (OFDM) signal generation and formulation and examines the advantages and disadvantages of OFDM systems compared to alternative multiplexing. It introduces one of the main drawbacks of OFDM systems, peak-to-average power ratio (PAPR), and discusses several PAPR techniques. It also explains how to overcome the main drawbacks of real-world OFDM system applications. Considers power amplifier linearization for increasing power efficiency and reducing system costs and power dissipation Describes the implementation scenario of the most promising linearization technique, digital predistortion Presents some experimental demonstrations of digital predistortion when the device under test is in the loop Because the most costly device in a communication system that has a direct impact on power efficiency and power consumption is the power amplifier, the book details the behavior and characteristics of different classes of power amplifiers. Describing the evolution of the mobile cellular communication system, it details a cost-effective technique to help you increase power efficiency, reduce system costs, and prolong battery life in next generation mobile devices.

The book covers orthogonal frequency division multiplexing (OFDM) signal generation and formulation and examines the advantages and disadvantages of OFDM systems compared to alternative multiplexing.

Intercultural Communication Competence

Bringing together current research, theories and methods from leading scholars in the field, this volume is a state-of-the-art study of intercultural communication competence and effectiveness. In the first part, contributors analyze the conceptual decisions made in intercultural communication competence research by examining decisions regarding conceptualization, operationalization, research design and sampling. The second part presents four different theoretical orientations while illustrating how each person's theoretical bias directs the focus of research. Lastly, both quantitative and qualitative research approaches used in studying intercultural communication competence are examined.

Bringing together current research, theories and methods from leading scholars in the field, this volume is a state-of-the-art study of intercultural communication competence and effectiveness.

The Principal's Guide to Managing Communication

Develop a successful communication strategy that reaches all members of the school community so that everything else has a chance to work as planned.

hroughout this book, the principal has been portrayed as the manager of
communication between the school and its stakeholders. Most of the time, the
stakeholders who the principals are most concerned with are their Partners: the
faculty, the ...

Java in Telecommunications

Solutions for Next Generation Networks

Java has taken the computing world by storm - now it arms itself to conquer telecommunications! What links today's hottest programming language to telecommunications? The same characteristics that brought about Java's remarkable success on the Internet: its platform independence and mobility. Recent developments such as JAIN (Java APIs for Integrated Networks), JAIN Parlay and the Java Telephony API equip Java for the next generation of telecommunications systems and networks. The authors, all practitioners at companies such as Sun Microsystems and Telcordia, provide the first comprehensive overview of how Java will be employed in areas such as call control, intelligent networking, STN/Internet convergence, and integrated network management. As well as providing a high-level survey of architectures and protocols, Java in Telecommunications also gives detailed guidance on implementation strategies for the brand new, still evolving, technologies: * call and multimedia processing; * Voice Over IP (VOIP) Telephony; * eXtensible Markup Language (XML); * Enterprise Java Beans (EJB). Java in Telecommunications is aimed at experienced telecommunications network practitioners who need to plan strategically for the future as well as all those who want to stay ahead of the game and embark upon Third Generation networks and services.

Java in Telecommunications is aimed at experienced telecommunications network practitioners who need to plan strategically for the future as well as all those who want to stay ahead of the game and embark upon Third Generation networks and ...