The work involved understanding the type of communications that would be needed in support of effective Smart Grids and then identifying potential spectrum, on a European basis, that could meet such requirements. Historically there was a limited number of power stations and the generated power was distributed, on demand, through the network to the end[…]
The feasibility of deploying adaptive fixed links in the 1800 MHz band to provide backhaul links in rural areas for the UK was examined for this study. Issues considered included regulatory constraints, cost savings, equipment development, bandwidth requirements, achievable link lengths, in-band interference, cross border coordination and harmonisation opportunities. An example scenario was considered where[…]
The study examined the state of art in wireless power transmission, transfer of electrical power, as seen from the perspective of the protection of radio communications services for Ofcom. It considered the scientific background behind the different proposals, the technological developments, possibilities and limitations, and examined the consumer and economic aspects. Particular attention was given to[…]
Following on from a previous study measuring equipment, that had been used to investigate the technical and consumer impact of time-varying interference to digital TV services, was maintained for a further year in Brighton and Southwold to monitor interfering signals and propagation variability from the continent. In addition a series of associated measurements were made using[…]
The aim of the study, a major two-year project, was to develop a unified propagation model for the prediction of signal levels on terrestrial paths in a frequency range of approximately 30MHz–50GHz, considering both availability and interference, which covers times from 0–100%. The work required a fundamental re-evaluation of the statistical relationship between different propagation mechanisms.[…]
Plum conducted a study to determine the barriers to internet adoption and the effectiveness of policy levers for overcoming these barriers. The report was published in Vodafone’s Public Policy Paper Series Issue No. 10 “Developing Government objectives for broadband”.
This paper discusses the convergence being driven by digital content, IP technology and a move from hardware to software-based systems. Convergence can be thought of as occurring in three phases. In the first phase of convergence legacy market players have entered one another’s traditional markets and offered a range of services and service bundles to[…]
This study, for Industry Canada, valued cellular and PCS spectrum licences which covered the 824-849/869-894 MHz and 1850-1910/1930-1990 MHz frequency ranges in Canada. This was done with a view to determining an appropriate annual fee for the next 10 year term of the licences. Plum examined auction results in Canada and elsewhere for spectrum used[…]
This study, for Ofcom, assessed the future of advertising technology over the next 10 years. The advertising market is undergoing rapid technology-driven change, impacting on the communications sectors that Ofcom regulates. This change has been led by digitisation of content and innovation in advertising technologies and applications on the internet (behavioural targeting, personalisation, new ad[…]
The study sought to quantify the relative and absolute spectrum efficiency of digital and analogue wireless microphones. It was required in the context of the general background of reduced availability of UHF spectrum for PMSE use, and the specific requirement to ensure adequate spectrum resources for the London Olympics in 2012. The study considered examples[…]