Nathanael Thompson

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The widespread availability of mobile wireless devices offers growing opportunities for the formation of temporary networks with only intermittent connectivity. These intermittently-connected networks (ICNs) typically lack stable end-to-end paths. In order to improve the delivery rates of the networks, new store-carry-and-forward protocols have been(More)
Fueled by the competing DSL and Cable technologies, residential broadband access has seen a significant spread in availability to the point that many users have a choice from several ISPs. At the same time, 802.11 networks have spread rapidly in the residential area, and it is common for neighbors to be able to access each other’s wireless routers.(More)
Embedded sensors in mobile devices such as cars and smart phones present new opportunities to collect location-specific data about an environment. This data can be used to enable new real-time location-based applications. A major challenge is efficiently collecting, storing and sharing the data. This paper proposes Locus, a location-based data overlay for(More)
Delay-tolerant networks (DTNs) are those networks which experience only intermittent connectivity between nodes. In a DTN there is rarely an end-to-end path between any pair of nodes. Message delivery is done on a store-carry-and-forward basis resulting in long and unpredictable round-trip times and potentially high drop rates. Theses network conditions(More)
A global-scale low cost outdoor Internet access infrastructure is finally attainable. Emerging projects are leveraging the proliferation of private Wi-Fi networks to build a global-scale ubiquitous access infrastructure from autonomous, independently owned Internet connections at homes and other private properties. To ensure the trace ability and(More)
Many wireless sensor network protocols are employing gossip-based message dissemination, where nodes probabilistically forward messages, to reduce message overhead. We are concerned with emerging systems in stationary sensor networks that are multiple-source with each message targeted at every recipient, such as query and code propagation. Default(More)
A new model for developing cellular-like networks is emerging in the market in which end users own and install part of the infrastructure and share it with other customers. The network grows "organically" as more end users join and contribute to its expansion. To drastically reduce the cost of these customer-installed networks, self-managed service designs(More)
A global-scale low cost outdoor Internet access infrastructure is finally attainable. Emerging projects are leveraging the proliferation of private Wi-Fi networks to build a globalscale ubiquitous access infrastructure from autonomous, independently owned Internet connections at homes and other private properties. To ensure the traceability and(More)