Redundancy is an important strategy for reducing response time in multi-server distributed queueing systems that has been used in a variety of settings, but only recently has begun to be studied analytically. The idea behind redundancy is that customers can greatly reduce their response time by waiting in multiple queues at the same time, thereby experiencing the minimum time across queues. Red...

The way groups of auditory neurons interact to code acoustic information is investigated using an information theoretic approach. Identifying the case of stimulus-conditioned independent neurons, we develop redundancy measures that allow enhanced information estimation for groups of neurons. These measures are then applied to study the collaborative coding efficiency in two processing stations ...

Reducing response time is a primary focus of computer systems research. One key factor that influences a job’s response time in a multi-server system is dispatching: when a job arrives to the system, it must be sent immediately to one of the servers. This thesis focuses on a new dispatching policy: redundancy. Unlike traditional dispatching policies, which send only a single copy of each job, t...

Triple Modular Redundancy is widely used in dependable systems design to ensure high reliability against soft errors. Conventional TMR is effective in protecting sequential circuits but can’t mask soft errors in combinational circuits. A new redundancy technique called the Space-Time Triple Modular Redundancy is presented in this paper, which improves the soft error tolerance of the combination...

in the new production systems, finding a way to improving the product and system reliability in design is a very important. the reliability of the products and systems may improve using different methods. one of this methods is redundancy allocation problem. in this problem by adding redundant component to sub-systems under some constraints, the reliability improved. in this paper we worked on ...

This paper develops a computational technique for finding the maximum allowable load of mobile manipulators for a given trajectory. The maximum allowable loads which can be achieved by a mobile manipulator during a given trajectory are limited by the number of factors; probably the dynamic properties of mobile base and mounted manipulator, their actuator limitations and additional constraints a...

This paper investigates the use of redundancy and self repairing against node failures indistributed storage systems using a novel non-MDS erasure code. In replication method, accessto one replication node is adequate to reconstruct a lost node, while in MDS erasure codedsystems which are optimal in terms of redundancy-reliability tradeoff, a single node failure isrepaired after recovering the ...

In reliability optimization problems diverse situation occurs due to which it is not always possible to get relevant precision in system reliability. The imprecision in data can often be represented by triangular fuzzy numbers. In this manuscript, we have considered different fuzzy environment for reliability optimization problem of redundancy. We formulate a redundancy allocation problem for a...

This paper presents a new mathematical model for a redundancyallocation problem (RAP) withcold-standby redundancy strategy and multiple component choices.The applications of the proposed model arecommon in electrical power, transformation,telecommunication systems,etc.Manystudies have concentrated onone type of time-to-failure, butin thispaper, two components of time-to-failures which follow hy...

Quantum-dot Cellular Automata (QCA) is an emerging and promising technology that provides significant improvements over CMOS. Recently QCA has been advocated as an applicant for implementing reversible circuits. However QCA, like other Nanotechnologies, suffers from a high fault rate. The main purpose of this paper is to develop a fault tolerant model of QCA circuits by redundancy in hardware a...