This book examines the history of UK radio from its analogue beginnings to its digital future by highlighting the roles played by the BBC and commercial radio in ensuring the medium’s long-term success. Beginning as a mere technological innovation, radio developed into a broadcasting model which has sustained for almost one hundred years. The UK model was defined by a public service broadcaster responsible for maintaining standards of broadcasting, as well as commercial operators—acting illegally and then legally—who have sought to exploit radio’s economic potential. This book aims to show how both these entities have contributed to the success of radio in the UK, whether acting competitively or by cooperating in order to ensure radio’s survival into the next century. This study will appeal to students of media or anyone with a general interest in the history of radio.

With the proliferation of wireless networks, there is a need for more compact, low-cost, power efficient transmitters that are capable of supporting the various communication standards, including Bluetooth, WLAN, GSM/EDGE, WCDMA and 4G of 3GPP cellular. This book describes a novel idea of RF digital-to-analog converters (RFDAC) and demonstrates how they can realize all-digital, fully-integrated RF transmitters that support all the current multi-mode and multi-band communication standards. With this book the reader will: Understand the challenges of realizing a universal CMOS RF transmitter Recognize the design issues and the advantages and disadvantages related to analog and digital transmitter architectures Master designing an RF transmitter from system level modeling techniques down to circuit designs and their related layout know-hows Grasp digital polar and I/Q calibration techniques as well as the digital predistortion approaches Learn how to generate appropriate digital I/Q baseband signals in order to apply them to the test chip and measure the RF-DAC performance. Highlights the benefits and implementation challenges of software-defined transmitters using CMOS technology Includes various types of analog and digital RF transmitter architectures for wireless applications Presents an all-digital polar RFDAC transmitter architecture and describes in detail its implementation Presents a new all-digital I/Q RFDAC transmitter architecture and its implementation Provides comprehensive design techniques from system level to circuit level Introduces several digital predistortion techniques which can be used in RF transmitters Describes the entire flow of system modeling, circuit simulation, layout techniques and the measurement process

This book focuses on a specific engineering problem that is and will continue to be important in the forth-coming information age: namely, the need for highly integrated radio systems that can be embedded in wireless devices for various applications, including portable mobile multimedia wireless communications, wireless appliances, digital cellular, and digital cordless. Traditionally, the design of radio IC’s involves a team of engineers trained in a wide range of fields that include networking, communication systems, radio propagation, digital/analog circuits, RF circuits, and process technology. However as radio IC’s become more integrated, the need for a diverse skill set and knowledge becomes essential for professionals as well as students to broaden beyond their trained area of expertise and to become proficient in related areas. The key to designing an optimized, economical solution for radio systems on a chip hinges on the designer’s thorough understanding of the complex trade-offs from communication systems down to circuits. To acquire the insight and understanding of the complex system and circuit trade-offs, a designer must digest volumes of books covering diverse topics, such as communications theory, radio propagation, and digital/analog/RF circuits. While books are available today that cover the individual areas, they tend to be narrowly focused and do not provide the necessary insight in the specific problem of integrating a complete radio system on a chip.

Based on the popular Artech House classic, Digital Communication Systems Engineering with Software-Defined Radio, this book provides a practical approach to quickly learning the software-defined radio (SDR) concepts needed for work in the field. This up-to-date volume guides readers on how to quickly prototype wireless designs using SDR for real-world testing and experimentation. This book explores advanced wireless communication techniques such as OFDM, LTE, WLA, and hardware targeting. Readers will gain an understanding of the core concepts behind wireless hardware, such as the radio frequency front-end, analog-to-digital and digital-to-analog converters, as well as various processing technologies. Moreover, this volume includes chapters on timing estimation, matched filtering, frame synchronization message decoding, and source coding. The orthogonal frequency division multiplexing is explained and details about HDL code generation and deployment are provided. The book concludes with coverage of the WLAN toolbox with OFDM beacon reception and the LTE toolbox with downlink reception. Multiple case studies are provided throughout the book. Both MATLAB and Simulink source code are included to assist readers with their projects in the field.

Now the standardisation work of DAB (Digital Audio Broadcasting)system is finished many broadcast organisations, network providersand receiver manufacturers in European countries and outside ofEurope (for example Canada and the Far East) will be installing DABbroadcast services as pilot projects or public services. Inaddition some value added services (data and video services) areunder development or have already started as pilot projects. The new digital broadcast system DAB distinguishes itself fromexisting conventional broadcast systems, and the various newinternational standards and related documents (from ITU-R, ISO/IEC,ETSI, EBU, EUREKA147, and others) are not readily available and aredifficult to read for users. Therefore it is essential that a wellstructured technical handbook should be available. The Second Edition of Digital Audio Broadcasting has beenfully updated with new sections and chapters added to reflect allthe latest developments and advances. Digital Audio Broadcasting: Provides a fully updated comprehensive overview of DAB Covers international standards, applications and othertechnical issues Combines the expertise of leading researchers in the field ofDAB Now covers such new areas as: IP-Tunneling via DAB; ElectronicProgramme Guide for DAB; and Metadata A comprehensive overview of DAB specifically written forplanning and system engineers, developers for professional anddomestic equipment manufacturers, service providers, as well aspostgraduate students and lecturers in communicationstechnology.

The Committee warns of a major public reaction against radio digital switchover, scheduled for 2015, unless the Government make the case for switchover and keep the public informed about its impact. There is 'public confusion and industry uncertainty' over radio switchover and concern that due to the lack of public information people are still buying analogue radios which will be out of date in a few years time. Retailers gave evidence stating that they are not getting adequate information on switchover plans so are unable to offer consumers accurate guidance when making purchases. The report also points out that car manufacturers are still fitting analogue radios in new cars and digital radios will not be fitted as standard in all cars until 2013.The radio switchover is contrasted with the television switchover programme, finding that the benefits of TV switchover were well understood, in contrast surveys show that the public are generally happy with the present FM radio system and with the range of programmes that are provided.The Committee recommends urgent steps on a range of actions including: providing a detailed plan for universal digital radio coverage including how it is to be funded; developing a policy for the long term use of FM; devising a help scheme for radio switchover financed by general taxation rather than the BBC licence fee; ensuring new digital car radios are fitted with a multi-standard chip to enable their use overseas; encouraging radio manufacturers and retailers to devise a sensible scrappage scheme for redundant analogue radios. It is also noted that the BBC and Government disagree over whether the cost of universal digital coverage of their national stations can be met under the current licence fee. The report says that it is essential that a 'firm and unambiguous' plan for funding the completion of build-out of the digital radio service is put in place as soon as possible. The report concludes reversing current policy would be unproductive given the amount of investment in digital radio already and while the switchover in 2015 is ambitious a change of target date is not favoured at this stage.