Cooperating broadcast and cellular conditional access system for digital television

This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The lack of interoperability between Pay‐TV service providers and a horizontally integrated business transaction model have compromised the competition in the Pay‐TV market. In addition, the lack of interactivity with customers has resulted in high churn rate and improper security measures have contributed into considerable business loss. These issues are the main cause of high operational costs and subscription fees in the Pay‐TV systems. This paper presents a novel end‐to‐end system architecture for Pay‐TV systems cooperating mobile and broadcasting technologies. It provides a cost‐effective, scalable, dynamic and secure access control mechanism supporting converged services and new business opportunities in Pay‐TV systems. It enhances interactivity, security and potentially reduces customer attrition and operational cost. In this platform, service providers can effectively interact with their customers, personalise their services and adopt appropriate security measures. It breaks up the rigid relationship between a viewer and set‐top box as imposed by traditional conditional access systems, thus, a viewer can fully enjoy his entitlements via an arbitrary set‐top box. Having thoroughly considered state‐of‐the‐art technologies currently being used across the world, the thesis highlights novel use cases and presents the full design and implementation aspects of the system. The design section is enriched by providing possible security structures supported thereby. A business collaboration structure is proposed, followed by a reference model for implementing the system. Finally, the security architectures are analysed to propose the best architecture on the basis of security, complexity and set‐top box production cost criteria

The Future of Public Television

This conference report provides analyses and perspectives from national public broadcasting and communications professionals who convened at a two-day conference hosted by the Cultural Policy Center

The introduction of digital television in the UK: a study of its early audience

This thesis examines the diffusion and adoption of digital television (DTV) in the UK by its first generation audience. It reveals how the spread of this innovation took place, and what were its early users and uses. The main objective is to investigate the processes through which a new medium and its new audience are shaped. The study focuses on Sky digital and its subscribers, covering the first four years of the life of DTV from its launch in October 1998. My analysis draws on empirical data derived from a UK-wide postal survey of Sky digital subscribers, a series of in-depth interviews with Sky digital users, and an analysis of advertising and marketing materials. By revealing a slice of time in British media and audience history, I argue that a number of forces influence the shaping and meaning construction of a new medium. I exemplify these by analysing early DTV in terms of the circuit of culture, showing how these forces contributed to its social and cultural shaping. DTV is a hybrid medium encompassing both old and new services. In discussing how it was promoted, taken up, used and made meaningful in the lives of early users, I address wider issues of how people understand and accept novelties and whether/why they are receptive to change, or resistant to it, staying attached to old habits. In demonstrating that early users focused on the offer of more channels/bigger choice/better picture and did not rush to embrace the new interactive internet-like features of DTV, I discuss how despite the hype presenting DTV as transformative, and despite fast take-up, access to it did not necessarily equate to use of all its services. For early users, DTV was a relatively conservative enhancement of traditional TV. I argue that the introduction of a new medium entails continuity not only in technological development, but also in consumption processes, resulting in the co-existence of 'old' and 'new'. Several theoretical perspectives and methodologies are integrated in the emergent history of this now old medium when it was new. The thesis recounts DTV's biography as manifested in the moments of production and design, representation and, particularly, consumption. The thesis is informed by and adds to theories of diffusion of innovations and of domestication. Its core theoretical contribution is that, in empirically addressing the relationship between new media diffusion and social change by drawing on domestication theory, it advances the theory of diffusion of innovations, expanding its theoretical and methodological scope by examining social and cultural processes within the household and people‟s lives

On Protocols for Information Security Services

Now-a-days, organizations are becoming more and more dependent on their information systems due to the availability of high technology environment.Information is also treated as vital like other important assets of an organization. Thus, we require Information Security Services (ISS) protocols to protect this commodity. In this thesis, investigations have been made to protect information by developing some ISS protocols. We proposed a key management protocol, which stores one-way hash of the password at the server, instead of storing plaintext version of password.Every host and server agrees upon family of commutative one-way hash functions. Due to this prevention mechanism, online and offline guessing attacks are defeated. The protocol provides host authentication. As a result, man-in-the-middle attack is averted. It also withstands malicious insider attack

Telecommunication Economics

This book constitutes a collaborative and selected documentation of the scientific outcome of the European COST Action IS0605 Econ@Tel "A Telecommunications Economics COST Network" which run from October 2007 to October 2011. Involving experts from around 20 European countries, the goal of Econ@Tel was to develop a strategic research and training network among key people and organizations in order to enhance Europe's competence in the field of telecommunications economics. Reflecting the organization of the COST Action IS0605 Econ@Tel in working groups the following four major research areas are addressed: - evolution and regulation of communication ecosystems; - social and policy implications of communication technologies; - economics and governance of future networks; - future networks management architectures and mechanisms

Telecommunication Economics

This book constitutes a collaborative and selected documentation of the scientific outcome of the European COST Action IS0605 Econ@Tel "A Telecommunications Economics COST Network" which run from October 2007 to October 2011. Involving experts from around 20 European countries, the goal of Econ@Tel was to develop a strategic research and training network among key people and organizations in order to enhance Europe's competence in the field of telecommunications economics. Reflecting the organization of the COST Action IS0605 Econ@Tel in working groups the following four major research areas are addressed: - evolution and regulation of communication ecosystems; - social and policy implications of communication technologies; - economics and governance of future networks; - future networks management architectures and mechanisms

Mapping Digital Media: Croatia

The Mapping Digital Media project examines the global opportunities and risks created by the transition from traditional to digital media. Covering 60 countries, the project examines how these changes affect the core democratic service that any media system should provide: news about political, economic, and social affairs.Croatia is well ahead of the curve. Experimental broadcasting via digital signals began in 2002 and the last analog television signals were switched off in September 2011. The country has the highest free-to-air digital terrestrial coverage in Europe, exceeding 99 percent of national territory, and it is the main television platform for the majority of the population.Television remains the dominant medium for both information and entertainment. However, the internet is the most trusted medium for news and information. Radio has experienced a marginal decline in listenership, but print media have been hit hardest by the globaleconomic downturn and audience migration online.In the final analysis, this report finds that policy has been responsive to digitization and that the process has done much to democratize and pluralize Croatian media. It has not yet, however, neutralized the power of dominant media organizations, or indeed the influence wielded by political elites and advertisers. There is also evidence that in response to digitization, journalism across sectors has become increasingly tabloid and oriented towards soft news, and there are uncertainties as regards the sustainability of public interest media