Fundamentals Of Voice Quality Engineering In Wireless Networks

Publisher description

Now, more than ever, in a market glutted with aspiring writers and a shrinking number of publishing houses, writers need someone familiar with the publishing scene to shepherd their manuscript to the right person. Completely updated annually, Guide to Literary Agents provides names and specialties for more than 800 individual agents around the United States and the world. The 2009 edition includes more than 85 pages of original articles on everything you need to know including how to submit to agents, how to avoid scams and what an agent can do for their clients.

Now, more than ever, in a market glutted with aspiring writers and a shrinking number of publishing houses, writers need someone familiar with the publishing scene to shepherd their manuscript to the right person. Completely updated annually, Guide to Literary Agents provides names and specialties for more than 800 individual agents around the United States and the world. The 2009 edition includes more than 85 pages of original articles on everything you need to know including how to submit to agents, how to avoid scams and what an agent can do for their clients.

A broad introduction to the fundamentals of wireless communication engineering technologies Covering both theory and practical topics, Fundamentals of Wireless Communication Engineering Technologies offers a sound survey of the major industry-relevant aspects of wireless communication engineering technologies. Divided into four main sections, the book examines RF, antennas, and propagation; wireless access technologies; network and service architectures; and other topics, such as network management and security, policies and regulations, and facilities infrastructure. Helpful cross-references are placed throughout the text, offering additional information where needed. The book provides: Coverage that is closely aligned to the IEEE's Wireless Communication Engineering Technologies (WCET) certification program syllabus, reflecting the author's direct involvement in the development of the program A special emphasis on wireless cellular and wireless LAN systems An excellent foundation for expanding existing knowledge in the wireless field by covering industry-relevant aspects of wireless communication Information on how common theories are applied in real-world wireless systems With a holistic and well-organized overview of wireless communications, Fundamentals of Wireless Communication Engineering Technologies is an invaluable resource for anyone interested in taking the WCET exam, as well as practicing engineers, professors, and students seeking to increase their knowledge of wireless communication engineering technologies.

This book shows how networking research and quality engineering can be combined to successfully manage the transmission quality when speech and video telephony is delivered in heterogeneous wireless networks. Nomadic use of services requires intelligent management of ongoing transmission, and to make the best of available resources many fundamental trade-offs must be considered. Network coverage versus throughput and reliability of a connection is one key aspect, efficiency versus robustness of signal compression is another. However, to successfully manage services, user-perceived Quality of Experience (QoE) in heterogeneous networks must be known, and the perception of quality changes must be understood. These issues are addressed in this book, in particular focusing on the perception of quality changes due to switching between diverse networks, speech and video codecs, and encoding bit rates during active calls.

The ultimate reference book for professionals in the wireless industry The information presented in this book reflects the evolution of wireless technologies, their impact on the profession, and the industry's commonly accepted best practices. Organized into seven main areas of expertise, A Guide to the Wireless Engineering Body of Knowledge (WEBOK) enhances readers' understanding of: Wireless access technologies Network and service architecture Network management and security Radio frequency engineering, propagation,and antennas Facilities infrastructure Agreements, standards, policies, and regulations Wireless engineering fundamentals Complemented with a large number of references and suggestions for further reading, the WEBOK is an indispensable resource for anyone working in the wireless industry.

The purpose of this book is to provide tools for a better understanding of the fundamental tradeo?s and interdependencies in wireless networks, with the goal of designing resource allocation strategies that exploit these int- dependencies to achieve signi?cant performance gains. Two facts prompted us to write it: First, future wireless applications will require a fundamental understanding of the design principles and control mechanisms in wireless networks. Second, the complexity of the network problems simply precludes the use of engineering common sense alone to identify good solutions, and so mathematics becomes the key avenue to cope with central technical problems in the design of wireless networks. In this book, two ?elds of mathematics play a central role: Perron-Frobenius theory for non-negative matrices and optimization theory. This book is a revised and expanded version of the research monograph “Resource Allocation in Wireless Networks” that was published as Lecture Notes in Computer Sciences (LNCS 4000) in 2006. Although the general structure has remained unchanged to a large extent, the book contains - merous additional results and more detailed discussion. For instance, there is a more extensive treatment of general nonnegative matrices and interf- ence functions that are described by an axiomatic model. Additional material on max-min fairness, proportional fairness, utility-based power control with QoS (quality of service) support and stochastic power control has been added.

The ultimate reference on wireless technology—now updated and revised Fully updated to incorporate the latest developments and standards in the field, A Guide to the Wireless Engineering Body of Knowledge, Second Edition provides industry professionals with a one-stop reference to everything they need to design, implement, operate, secure, and troubleshoot wireless networks. Written by a group of international experts, the book offers an unmatched breadth of coverage and a unique focus on real-world engineering issues. The authors draw upon extensive experience in all areas of the technology to explore topics with proven practical applications, highlighting emerging areas such as Long Term Evolution (LTE) in wireless networks. The new edition is thoroughly revised for clarity, reviews wireless engineering fundamentals, and features numerous references for further study. Based on the areas of expertise covered in the IEEE Wireless Communication Engineering Technologies (WCET) exam, this book explains: Wireless access technologies, including the latest in mobile cellular technology Core network and service architecture, including important protocols and solutions Network management and security, from operations process models to key security issues Radio engineering and antennas, with specifics on radio frequency propagation and wireless link design Facilities infrastructure, from lightning protection to surveillance systems With this trusted reference at their side, wireless practitioners will get up to speed on advances and best practices in the field and acquire the common technical language and tools needed for working in different parts of the world.