Smith, Jonathan M

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  • Publication
    Network Infrastructure Configuration
    (2009-04-01) Anderson, P; Gunter, C A; Kalmenek, C R; Narain, S; Smith, Jonathan M; Talpade, R; Xie, G G; Steenstrup, M
    The nine papers in this special issue focus on network infrastructure configuration and some of the problems encountered in the areas of specification, diagnosis, repair, synthesis, and anonymization.
  • Publication
    Dynamic Trust Management
    (2009-02-01) Blaze, Matt; Kannan, Sampath; Lee, Insup; Sokolsky, Oleg; Smith, Jonathan M; Keromytis, Angelos D; Lee, Wenke
    Trust management forms the basis for communicating policy among system elements and demands credential checking for access to all virtual private service resources—along with careful evaluation of credentials against specified policies—before a party can be trusted.
  • Publication
    RF-mobility gain: Concept, measurement campaign, and exploitation
    (2009-02-01) Smith, Jonathan M; Olivieri, Marc; Lackpour, Alex; Hinnerschitz, Nicholas
    Self-directed movement of radio devices can enable large amounts of power gain since the sources of fluctuations in received signal power due to multipath-induced small-scale fading have highly localized effects. We call the gain achieved by finding a better location the mobility gain. University of Pennsylvania Experimental data for indoor as well as outdoor measurement studies are used to illustrate the potential of this RF-Mobility Gain concept over a wide range of frequencies. An analysis of the RF data reveals that a small amount of energy spent on searching for a better location can pay large dividends in long-term power expenditures for RF transmission. Challenges in building such a system for peer-to-peer links and network applications are discussed along with potential coordination algorithms.