Editorial

‘Welcome to Columbus College. Is this all your gear?’ ‘It’s all I was allowed without paying excess.’ Victoria arrives at the University of Space, Jupiter Moon ‘You're right, Johnny. You know, there are a lot of other kids who feel just the same way you do. They're confused and afraid, but they don't have to be. The problem isn't that other kids don't like you, it's that they don't understand you, but we do. You're special. You're a latent telepath about to come into full bloom.’ ‘My Johnny, a telepath?’ ‘Probably, but to be sure, take him down to the Psi‐Corps Testing Centre first thing tomorrow.’ ‘How do I find them?’ ‘We're everywhere, for your convenience.’ Psi Corps Advertisement, Babylon 5 Victoria was joining the Ilea ‐ a science station in geostationary orbit above a human colony on Callisto, the outermost of the Galilean moons of Jupiter. Jupiter Moon, which aired in the 1990s, followed the lives of the crew of the space station and the students and staff of the Columbus College of the University of Space. As a drama serial, it combined elaborate science with the mundanity of baggage allowances and spaced‐up new‐romantic fashion. At around the same time, the visually and conceptually much more sophisticated Babylon 5 took us further into the future in a five‐mile‐long Babylon 5 space station, a centre for trade and diplomacy between colonies in the Earth Alliance and beyond, with the Psi Corps responsible for the wellbeing and also the control of telepathic individuals by whom those without extraordinary psychic powers are identified as ‘mundanes’. The same term was used recently in a study, publicized in Times Higher Education, of the benefits of technology identified by students, citing one of the co‐authors of the study as saying that there was ‘considerable evidence’ that technology was aiding learning but that it was not always ‘the cutting edge or headline use of technologies but often the more prosaic or mundane’ uses associated with the organization and management of study time and place (Parr 2015). The findings echo those of Francis (2010), whose ethnographic study also finds that students’ technology use focuses on forming and maintaining context – physical as well as online. But Francis’s conclusions are far‐reaching. He describes the university as ‘decentred’ by this shift towards learner appropriation of technology toolsets and collaborative networks to the shape and use of which they, and not we, are central. Nothing mundane about that, either for pedagogy or for institutional strategy. How did we not notice it happening

Fronthaul-Constrained Cloud Radio Access Networks: Insights and Challenges

As a promising paradigm for fifth generation (5G) wireless communication systems, cloud radio access networks (C-RANs) have been shown to reduce both capital and operating expenditures, as well as to provide high spectral efficiency (SE) and energy efficiency (EE). The fronthaul in such networks, defined as the transmission link between a baseband unit (BBU) and a remote radio head (RRH), requires high capacity, but is often constrained. This article comprehensively surveys recent advances in fronthaul-constrained C-RANs, including system architectures and key techniques. In particular, key techniques for alleviating the impact of constrained fronthaul on SE/EE and quality of service for users, including compression and quantization, large-scale coordinated processing and clustering, and resource allocation optimization, are discussed. Open issues in terms of software-defined networking, network function virtualization, and partial centralization are also identified.Comment: 5 Figures, accepted by IEEE Wireless Communications. arXiv admin note: text overlap with arXiv:1407.3855 by other author

Angels in the architecture - and devils in the detail: how the learning space impacts on teaching and learning

An innovative classroom design pioneered in the US, which aims to facilitate greater student engagement, has been piloted in a UK University for the first time. This case study reflects on some of the advantages and the challenges of this technology rich learning space and considers its impact on curriculum design in a module which aims to develop academic, research and digital skills in first year students on an undergraduate Health and Social Care course

Recommendations for Expanding the Research Infrastructure for the Social, Economic, and Behavioral Sciences

KVI

A Multi-hop Topology Control Based on Inter-node Range Measurement for Wireless Sensor Networks Node Localization

In centralized range-based localization techniques, sufficiency of inter-node range information received by the base station strongly affects node position estimation results. Successful data aggregation is influenced by link stability of each connection of routes, especially in a multi-hop topology model. In general, measuring the inter-node range is only performed for position determination purposes. This research introduces the use of inter-node range measurement information for link selection in a multi-hop route composition in order to increase the rate of data aggregation. Due to irregularity problems of wireless media, two areas of node communication have been considered. The regular communication area is the area in which other nodes are able to perform symmetrical communication to the node without failure. The irregular area is the area in which other nodes are seldom able to communicate. Due to its instability, some existing methods tried to avoid the irregular area completely. The proposed method, named Virtual Boundaries (VBs) prioritizes these areas. The regular communication area’s nodes have high priority to be selected as link vertices; however, when there is no link candidate inside this area, nodes within the irregular area will be selected with respect to their range to the parent node. This technique resulted in a more robust multi-hop topology that can reduce isolated node numbers and increase the percentage of data collected by the base station accordingly

A Review of the Open Educational Resources (OER) Movement: Achievements, Challenges, and New Opportunities

Examines the state of the foundation's efforts to improve educational opportunities worldwide through universal access to and use of high-quality academic content