An Adaptive Programming Model for Fault-Tolerant Distributed Computing

Abstract: The capability of dynamically adapting to distinct runtime conditions is an important issue when designing distributed systems where negotiated quality of service (QOS) cannot always be delivered between processes. Providing fault tolerance for such dynamic environments is a challenging task. Considering such a context, this paper proposes an adaptive programming model for fault-tolerant distributed computing, which provides upper-layer applications with proces ....etc

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Fault-Tolerant Distributed Channel Allocation in Mobile Ad-Hoc Networks
IEE Transactions on Mobile Computing, Vol. 4, No. 6,
Language: Java

Abstract:
A channel allocation algorithm in a cellular network consists of two parts: a channel acquisition algorithm and a channel selection algorithm. Some of the previous works in this field focused on centralized approaches to allocating channels. But, centralized approaches are neither scalable nor reliable. Recently, distributed dynamic channel allocation algorithms have been proposed, ....etc

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TCP-Aware Channel Allocation in CDMA Networks-IEE Jan. 2009

Abstract

explores the use of rate adaptation in cellular networks to maximize throughput long-lived TCP sessions. We focus on the problem of maximizing the throughput of TCP connections and propose a joint optimization of MAC and physical layer parameters with respect to TCP sending rate. In particular, propose a simple TCP-aware channel scheduler that adapts the wireless channel rate to changes in the TCP sending rate and explore its performance for both single and multiple con ....etc

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In optical WDM networks, since each lightpath can carry a huge mount of traffic, failures may seriously damage the end-user applications.As a result, fault-tolerance is an important issue in these networks. The primary path is the light path which carries traffic during normal operation. in case of a failure, the traffic is rerouted on a backup path. a reliable and fault-tolerant routing algorithm is discussed in this paper for establishing primary and backup path. load balancing is used to establish the primary path. In this method, the pag ....etc

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Fault Tolerant Distributed Systems



#1: Revannaswamy, Bhatt - 97

O(log N), N = Number of nodes in the spanning tree

Communicate with neighbours only (Raymonds algorithm)

Tolerant to single page link / single node failures

Eliminate the failed component and obtain different tree structure (network is biconnected)

Mechanism to detect the failures is assumed to exist

Only Branches are used for message exchanges

#1 Contd - Reconfiguaration

Repeat the ....etc

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This work was done at the college of engineering, trivandrum


1. INTRODUCTION

Reusable launch vehicles are designed to be used repeatedly. Since they are reused, RLV s are expected to dramatically reduce the cost of accessing the space. Current design objectives are to make access to space a routine event, to achieve airplane like operation. The RLV flight trajectory consists of different phases such as ascent phase, coast phase and descent phase. At these different phases, the control of the vehicle is ....etc

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Broadcasting and gossiping are fundamental tasks in network communication. As communication networks grow in size, they become increasingly vulnerable to component failures. Some links and/or nodes of the network may fail. It becomes important to design communication algorithms in such a way that the desired communication task be accomplished efficiently in spite of these faults, usually without knowing their location ahead of time.

In this seminars, we can review the history of Fault-Tolerant broadcasting and gossiping research, and prese ....etc

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uml diagrams for adaptive fault tolerant qos control algorithms for maximizing system lifetime of query based wsn ....etc

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