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We present a protocol designed to solve several consecutive consensus instances in an asynchronous distributed system prone to crash failures and message omissions. The protocol follows the Paxos approach and integrates two different optimizations to reduce the latency of learning a decision value. This protocol is adaptive as it tries to obtain the best performance gain depending on the current context...
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...
In wireless sensor applications such as disaster recovery and military actions, the behavior of mobile sinks is characterized by group features. A number of mobile sinks move together in a group manner, and mobile sinks in the group stay closely and randomly move within a geographically restricted region. Recently, many communication schemes have been suggested to reflect the properties of the mobile...
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