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Obliviousness is crypto primitives which intent to hide access pattern. Although ORAM is strongest crypto model, it incurs significant overhead. Elaine Shi et. al. propose Obliviousness Data Structrue (ODS) that makes a great theriotical improvement comparing to general ORAM algorithm, in case of the data blocks exhibit some degree of access predictability. Take AVL tree as an example, when all data...
3GPP made the LTE plan in 2004, which aims to promote the mobile communication system to evolve sustainably. As technology evolves, unified Packet Core Network will be adopted to carry real-time demanding businesses such as data and voice services. And end-to-end QoS guarantee for services is achieved by way of PCC architecture. Although 3GPP has given a clear definition of PCC, but telecom operators...
Cognitive Radio Network (CRN) is regarded as a promising way to address the increasing demand for wireless channel resources. It solves the channel resource shortage problem by allowing a Secondary User (SU) to access the channel of a Primary User (PU) when the channel is not occupied by the PU. The latest FCC's rule in May 2012 enforces database-driven CRNs, in which an SU queries a database to obtain...
Enterprise networks today host a wide variety of network services, which often depend on each other to provide and support network-based services and applications. Understanding such dependencies is essential for maintaining the well-being of an enterprise network and its applications, particularly in the presence of network attacks and failures. In a typical enterprise network, which is complex and...
Spread spectrum techniques (e.g., Frequency Hopping (FH), Direct Sequence Spread Spectrum (DSSS)) have been widely used for anti-jamming wireless communications. Such techniques require that communicating devices agree on a shared secret before communication. However, it is non-trivial for two devices that do not share any secret to establish one in presence of a jammer. Recently, several schemes...
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