Showing papers on "Vertical mobility published in 2014"
TL;DR: This paper proposes a new scheme that makes Host Identity Protocol (HIP) able to serve as an efficient and secure mobility protocol for wireless heterogeneous networks while preserving all the advantages of the base HIP functions as well.
Abstract: Mobility protocols allow hosts to change their location or network interface while maintaining ongoing sessions. While such protocols can facilitate vertical mobility in a cost-efficient and access agnostic manner, they are not sufficient to address all security issues when used in scenarios requiring local mobility management. In this paper, we propose a new scheme that makes Host Identity Protocol (HIP) able to serve as an efficient and secure mobility protocol for wireless heterogeneous networks while preserving all the advantages of the base HIP functions as well. Our proposal, called Heterogeneous Mobility HIP (HMHIP), is based on hierarchical topology of rendezvous Servers (RVSs), signaling delegation, and inter-RVS communication to enable secure and efficient network mobility support in the HIP layer. Formal security analysis using the AVISPA tool and performance evaluation of this method are provided; they confirm the safety and efficiency of the proposed solution. HMHIP reduces handover latency and packet overhead during handovers by achieving registration locally.
11 citations
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TL;DR: In this paper, the authors explore perceptions of inequality and attitudes toward redistribution exploiting ISSP and LiTS cross-country data sets and find that tolerance of individuals to a given inequality level is positively associated with previous experience of vertical mobility.
Abstract: We explore perceptions of inequality and attitudes toward redistribution exploiting ISSP and LiTS cross-country data sets. These perceptions vary across countries as well as across individuals within countries. We try to explain this variation using variation in opportunities for vertical social mobility available to individuals. The main research question is whether individual perceptions of income differentiation are driven by experience of past mobility and availability of channels leading upward. In other words, is more socially mobile society more tolerant to income inequality than less mobile and segmented? An intuitive answer seems obvious yes but empirical evidence is still scarce. Our key hypothesis speculates that tolerance of individuals to a given inequality level is positively associated with previous experience of vertical mobility. This experience includes the scale of mobility as well as the perception of how legitimate and just are ways to success. In there search literature, this view is associated with “the tunnel effect” proposed by A. Hirschman. The paper explores this effect using three different cross-country data sets that cover different countries and use varying definitions and measures of social mobility. The estimates appear robust to various specifications in ordered probit regressions.
2 citations