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We propose a new approach to specifying and reasoning about forward recovery fault tolerant programs. We call it ideal stabilization. The program is ideally stabilizing if its every state is legitimate. Ideal stabilization allows the specification designer to prescribe, with arbitrary degree of precision, not only the fault-free program behavior but also its recovery operation. Unlike the classic...
Data Grids provide services and infrastructure for distributed data-intensive applications accessing massive geographically distributed datasets. An important technique to speed access in Data Grids is replication, which provides nearby data access. Much of the work on the replica placement problem has focused on average system performance and ignored quality assurance issues. In a data grid environment,...
In multi-hop wireless sensor networks, the problem of uneven energy depletion is intrinsic to the system. With uniform node distribution and continuous traffic model without data fusion, no routing strategy, in general, can avoid the creation of an energy hole around the sink. However, nearly balanced energy consumption can be achieved by using non-uniform deterministic node distribution where nodes...
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