Asynchronous Remote Medical Consultation for Ghana

Computer-mediated communication systems can be used to bridge the gap between doctors in underserved regions with local shortages of medical expertise and medical specialists worldwide. To this end, we describe the design of a prototype remote consultation system intended to provide the social, institutional and infrastructural context for sustained, self-organizing growth of a globally-distributed Ghanaian medical community. The design is grounded in an iterative design process that included two rounds of extended design fieldwork throughout Ghana and draws on three key design principles (social networks as a framework on which to build incentives within a self-organizing network; optional and incremental integration with existing referral mechanisms; and a weakly-connected, distributed architecture that allows for a highly interactive, responsive system despite failures in connectivity). We discuss initial experiences from an ongoing trial deployment in southern Ghana.Comment: 10 page

End-to-End Simulation of 5G mmWave Networks

Due to its potential for multi-gigabit and low latency wireless links, millimeter wave (mmWave) technology is expected to play a central role in 5th generation cellular systems. While there has been considerable progress in understanding the mmWave physical layer, innovations will be required at all layers of the protocol stack, in both the access and the core network. Discrete-event network simulation is essential for end-to-end, cross-layer research and development. This paper provides a tutorial on a recently developed full-stack mmWave module integrated into the widely used open-source ns--3 simulator. The module includes a number of detailed statistical channel models as well as the ability to incorporate real measurements or ray-tracing data. The Physical (PHY) and Medium Access Control (MAC) layers are modular and highly customizable, making it easy to integrate algorithms or compare Orthogonal Frequency Division Multiplexing (OFDM) numerologies, for example. The module is interfaced with the core network of the ns--3 Long Term Evolution (LTE) module for full-stack simulations of end-to-end connectivity, and advanced architectural features, such as dual-connectivity, are also available. To facilitate the understanding of the module, and verify its correct functioning, we provide several examples that show the performance of the custom mmWave stack as well as custom congestion control algorithms designed specifically for efficient utilization of the mmWave channel.Comment: 25 pages, 16 figures, submitted to IEEE Communications Surveys and Tutorials (revised Jan. 2018

Networking lifelong learning: making it happen, an implementation plan

Presented by the FEILT committee Chair - Jenny Scribbins In April 1999 the Council’s FEILT committee (FEILTC) published its proposal information learning technology (ILT) development strategy for the sector entitled Networking Lifelong Learning. The sector response was very positive. In June 1999, FEILTC recommended to FEFC a high-level action plan to take the strategy forward. That plan was endorsed and two implementation task groups were set up with a remit to make detailed implementation proposals. This report summarises the main recommendations of the two task groups to form an implementation plan. FEILTC formally advises the Council to accept this plan as an appropriate implementation route for the ILT development strategy

Self-Sustaining Caching Stations: Towards Cost-Effective 5G-Enabled Vehicular Networks

In this article, we investigate the cost-effective 5G-enabled vehicular networks to support emerging vehicular applications, such as autonomous driving, in-car infotainment and location-based road services. To this end, self-sustaining caching stations (SCSs) are introduced to liberate on-road base stations from the constraints of power lines and wired backhauls. Specifically, the cache-enabled SCSs are powered by renewable energy and connected to core networks through wireless backhauls, which can realize "drop-and-play" deployment, green operation, and low-latency services. With SCSs integrated, a 5G-enabled heterogeneous vehicular networking architecture is further proposed, where SCSs are deployed along roadside for traffic offloading while conventional macro base stations (MBSs) provide ubiquitous coverage to vehicles. In addition, a hierarchical network management framework is designed to deal with high dynamics in vehicular traffic and renewable energy, where content caching, energy management and traffic steering are jointly investigated to optimize the service capability of SCSs with balanced power demand and supply in different time scales. Case studies are provided to illustrate SCS deployment and operation designs, and some open research issues are also discussed.Comment: IEEE Communications Magazine, to appea

INTERMITTENT PARTICIPATION: HOW SOCIABILITY AND USABILITY SHAPE MEDIATED MOBILE INTERACTION

Mobile devices are common communication tools, which deeply affect social engagement practices. Smart-mobile devices move beyond voice and textual communication: they enable ubiquitous online connectivity, and bring changes to mediated social interaction. In this paper we bring the results of a study of the meditated social practices of students who use smart mobile devices on a university campus and beyond it. While the common premise is that smart mobile devices enable continuous collaborative interaction, our study shows this interaction is limited than previously believed. Two distinct factors were found to affect mobile interaction: sociability and usability. While sociability entices users to engage in continuous mobile-mediated interaction, usability issues encumber the full embracement of mobile-social applications. The tension between the two creates a new form of interaction - intermittent participation - in which users are constantly attuned to absorb notifications and updates, but rarely respond to them, unless a response is absolutely necessary