Group communication protocols greatly simplify the design of fault-tolerant distributed systems. Most of those protocols focus on node redundancy rather than on network redundancy. The Totem Redundant Ring Protocol allows the use of multiple redundant local-area networks. The partial or total failure of a network remains transparent to the application processes. The distributed system remains o...

This paper addresses the issue of optimal redundancy allocation in hybrid structure large binary systems. Two aspects optimization are considered: (1) maximizing reliability system under cost constraint, and (2) obtaining necessary at a minimum cost. The complex considered this work is composed many subsystems with redundant structure. To cover most cases encountered practice, following kinds a...

This paper elaborates on the approach towards reliability analysis for active redundant system with a dual nature of repair strategy according to kind failure. The characteristics using regenerative techniques are analyzed stochastically system, which includes two parallel units acting in an redundancy form. A transition model has been designed working mechanism discussed and evaluated help geo...

Applying system-level fault-tolerant techniques such as active redundancy is a promising way to enhance the system reliability for safety-related applications. Embedded system design using active redundancy is a challenging task that involves solving two major problems, namely finding the optimal redundancy configuration and mapping/scheduling of the application (including the redundant compone...

In this paper we present SCMS-ER: Small Cell Management System Emergency Recovery. SCMS-ER provides a way of backing up Small Cell Management System critical data across two geographic locations. It also provides a plan for replication of backup data so that the client data is recoverable in the event of a disaster on the main site. Keywords—small cell, Femto cell, redundancy, geographic redund...

In this research, a new hybrid model for the redundancy allocation problem (RAP) in series-parallel configuration with k-out-of-n subsystem is presented. given model, policy set to an active, warm standby, or no redundancy. standby policy, imperfect switch detected component's failure and replaced fail component one. So, subsystems' one of model's decision variables. We presented objective func...

We examine the physical implications of viscous redundancy two-dimensional anisotropic fluids, where different components viscosity tensor lead to identical effects in bulk a system [Rao and Bradlyn, Phys. Rev. X $\textbf{10}$, 021005 (2020)]. first re-introduce redundancy, show how it reflects lack knowledge microscopic information system, give examples. Next, we that fluid flow systems with b...