Jon Crowcroft

TL;DR: This paper proposes a novel technique for unifying both push- and pull-based delivery: the Speculative Content Offloading and Recording Engine (SCORE), which operates as a set-top box, which interacts with both broadcast push and online pull services.

TL;DR: This paper proposes a dynamic scheme that pre-joins only a selection of TV channels, and shows that by using this scheme IPTV service providers can save a considerable amount of bandwidth while affecting only a very small number of TV channel switching requests.

TL;DR: Shair is a system allowing contracted mobile phone users to benefit from their unused quota minutes and text messages through opportunistic local connectivity, allowing other Shair users to use sharers' phones within reach of short range radio such as Bluetooth.

TL;DR: A practical security protocol model for ubiquitous networks which is computationally fast and requires low memory resources is described, which is able to fully satisfy the security requirements for users of the network applications and services in Ambient Networks.

TL;DR: In this paper, the authors identify a set of key issues currently facing digital communications and review their relevance for the strategic provision of infrastructure, particularly within the UK context, and find that future demand uncertainty is one of the major issues affecting the digital communications sector driven by rigid willingness-to-pay, weak revenue and an increasing shift from fixed to wireless technologies.