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In sharp contrast to television, various sources of market failure currently prevent market forces fulfilling the promise of digital switchover in radio markets. The purpose of this paper is to review the strengths and weaknesses, business models and market deployment of the two main platforms, with a view to establishing the economic case for higher regulatory involvement in digital radio markets.

The paper analyses the relevant broadcaster, engineering and regulatory literature, with particular emphasis on technical compatibilities among terrestrial radio broadcast technologies, and the technological and economic difficulties they face. The exercise is the first of its kind to scope and bring together these multidisciplinary contributions.

The highly uncoordinated development and deployment of terrestrial digital radio platforms is leading this new digital industry to an impasse. There is a legacy of uncertainty and scepticism amongst market players. Furthermore, prevailing technology and business models have marginalised community radio services and regional audiences.

The analysis does not cover the demand side (contents, culture) nor developments in non‐terrestrial digital platforms, nor in the US‐based IBOC standard.

There is considerable scope, particularly in large, sparsely inhabited countries with sizeable rural audiences to remedy the failings of the current fragmented approach through regulatory intervention through platform integration.

There is a lack of coherent information published on the potential benefits that the new digital platforms are bringing to the audio broadcasting market, and on the current market difficulties they face. The article remedies this gap.

The diffusion of digital radio has experienced more challenges than for digital TV regarding a digital switchover. The purpose of this paper shows on the specific case of Germany, which difficulties the digital sound broadcasting technology of Digital Audio Broadcasting (DAB) has been facing from several points of view. The difficulties are reviewed and outlined to overcoming different barriers and to facilitating its diffusion.

The paper analyses how the diffusion of digital radio is perceived by industry representatives such as radio consultants and several stakeholders along the value chain of the radio industry. In semi-structured interviews, participants describe and evaluate the challenges for DAB as digital audio broadcasting standard mainly in Germany.

After two decades of deploying digital radio in Germany, its success is still missing. Various very different aspects have prevented the diffusion of the new technology. Among various barriers, the radio industry sees missing benefits, marketing errors and a lack of inter-industrial collaboration as barriers in a retro-perspective.

The analysis does not cover other countries, where DAB as standard was introduced. Also other standards for digital radio are not considered.

With referring to barriers for digital radio, there is a scope for those countries about to introduce the technology to troubleshoot the failings of overcoming barrier. An idea can emerge, how authorities and industrial stakeholders can help to facilitate the diffusion of digital radio. It also indicates the need of governmental interaction for the coordination of a technology introduction in a network industry.

The theoretical model, referred to, gives a good overview of potential diffusion barriers as most identified problems for the German case. The model and the illustrated problems of the paper can be used in practice to manage potential diffusion problems during technology introductions.

There is a lack of published information about the faced challenges for the diffusion of digital radio. The retro-perspective benefits from the broad experience of participants having observed the challenges of the past decade with DAB in Germany. Additionally, the results are mapped to a theoretical framework with limits for the diffusion of innovation for generalising.

Filter design plays an essential role in most communication standards. The essential element of the software-defined radio is a channelizer that comprises several channel filters. Designing filters with lower complexity, minimized area and enhanced speed is a demanding task in currently prevailing communication standards. This study aims to propose an efficient reconfigurable residue number system (RNS)-based multiply-accumulate (MAC) channel filter for software radio receivers.

RNS-based pipelined MAC module for the realization of channel finite impulse response (FIR) filter architecture is considered in this work. Further, the use of a single adder and single multiplier for realizing the filter architecture regardless of the number of taps offers effective resource sharing. This design provides significant improvement in speed of operation as well as a reduction in area complexity.

In this paper, two major tasks have been considered: first, the RNS number conversion is performed in which the integer is converted into several residues. These residues are processed in parallel and are applied to the MAC-FIR filter architecture. Second, the MAC filter architecture involves pipelining, which enhances the speed of operation to a significant extent. Also, the time-sharing-based design incorporates a single partial product-based shift and add multiplier and single adder, which provide a low complex design. The results show that the proposed 16-tap RNS-based pipelined MAC sub-filter achieves significant improvement in speed as well as 89.87% area optimization when examined with the conventional RNS-based FIR filter structure.

The proposed MAC-FIR filter architecture provides good performance in terms of complexity and speed of operation because of the use of the RNS scheme with pipelining and partial product-based shift and adds multiplier and single adder when examining with the conventional designs. The reported architecture can be used in software radios.

Spectrum regulations have major impact on the development and deployment of innovative technologies. Current regulations for license-exempt radio spectrum generally are given in terms of technology-related criteria. This paper aims to propose a set of metrics that can be used to define technology-agnostic spectrum regulations which encourage rather than restrict technology innovation.

This paper builds on and expands two other papers on regulatory criteria for license-exempt spectrum which define metrics for spectrum loading and spectrum sharing efficiency. Here, we add metrics for Block Edge Masks and for medium access adaptivity. This gives a complete toolset for the management of radio spectrum.

Because of the diversity of use of license-exempt spectrum, performance criteria must be formulated in terms that abstract from the details of equipment properties. Instead, they must be formulated in terms of spectrum utilization dimensions: RF power, time and frequency occupation. The result is a concise set of metrics that can be applied to the regulation or management of shared spectrum.

The mathematics used in this paper deal with high-level parameters and may ignore factors that are important in certain cases and may require refinement.

The implications of the proposed metrics include an increase emphasis on the objectives of spectrum policy and on measures to assure efficient spectrum utilization both within frequency bands and between adjacent bands.

There are no social implications the authors are aware of.

The originality of this work lies in recognizing that the extreme variety of devices and mode of operation deployed in license-exempt spectrum calls for spectrum management criteria that are technology agnostic.

Provides an interesting illustration of the changing relationships between the European single market, on the one hand, and globalization on the other. States the development of mobile communications in Europe reflects an overall joint objective to maintain Europe’s position in the international division of labour.

Sensors and actuators are found in large numbers on every production line in every industry. And each and every one of them requires data and power cabling. Not only are these cables costly to install, they are also a frequent source of failure. ABB is introducing a novel wireless proximity switch that incorporates a communication module for the power supply, signal transmission and man‐machine communication, and so has no need for cables.

The nature of radiated radio frequency fields and the ways in which they may cause either beneficial or deleterious effects are reviewed. The uniqueness of this phenomenon in relation to the drafting of safety guides, and hence ultimately in relation to law, is pointed out. The existing strategy for the drafting of safety guides depends on the determination of “reasonable worst‐case” parameters for each of the mechanisms involved in the coupling process from source to potential hazard. The decisions on what constitutes a reasonable worse case are taken by an expert committee, but comparison of the resulting safety guides with the scant evidence of proven hazards suggests that the worst‐case view leads to a substantial overestimate of the actual hazards. It is suggested that this situation would be likely to be found to be extremely unsatisfactory if ever a hazard situation (whether proven, contended or hypothetical) were to be the result of litigation between belligerent parties. It is further suggested that substantial amelioration of this situation could result if a probabilistic view of the problem were taken. In this case the expert committee would decide on realistic probability density functions, rather than realistic worst‐case factors.

Engineers across many disciplines are becoming interested in wireless communication, however the plethora of standards, frequencies and technologies can lead to considerable confusion. This article presents some decision criteria to assist the reader selecting the most suitable technology. Further, it highlights other issues to prepare for integrating RF.

An overview of radio telemetry, concentrating on low power, short‐range systems which can be operated without equipment licences. Describes transmission mechanisms, aerials and the two main types of analogue modulation: amplitude modulation [AM] and frequency modulation [FM].Outlines the developments in radio data links and modulation schemes, the benefits of networks and the various methods of encoding data. Concludes that one of the biggest problems in radio telemetry is the different regulations across Europe making it virtually impossible to design a transmitter that is acceptable in more than one country. However, in Europe the situation is slowly changing, with new common standards for defining, evaluating and testing equipment coming into effect.

Reviews product life cycle theory and examines empirical evidence. Reports on empirical research carried out to determine the applicability of the theory to popular record products. Proposes a framework of the relationship between the producer life cycle and the marketing mix.