The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Several decentralized load balancing policies have been proposed to address the issue of scalability in grids.However, the communication overhead incurred in exchanging state information remains a burden. In this paper, we propose a dynamic, decentralized load balancing policy which performs very competitively in heterogeneous grids. The policy uses an effective mechanism for state information exchange,...
Recently, flash memory is becoming a popular data storage device in most of the electronic consumer devices. It has lots of attractive features such as small size and light weight nature, zero noise, solid-state reliability, low power consumption, and better shock resistant. However, its two hardware characteristics, namely, i) out-place updating and ii) garbage collection process are affecting flash...
Workflow is the most widespread modeling technique application in the field of business and office information systems. In the previous paper introduced P-graph-based workflow modeling extended by the introduction of resource management is a systematic, fast method of optimal workflow model generation based on network synthesis with correct mathematical background. In this paper a further extension,...
The developed DnD grid system aims to improve building of distributed computer environments by dedicated and non-dedicated resources. The proposed approach supposes overdimensioned static performance and dynamic underloading of non-dedicated resources. Efficiency, availability and autonomy of such distributed heterogeneous environment depend on platform, application, mapping and resource owner/service...
Applications for wireless sensor networks may be decomposed into the deployment of tasks on different sensor nodes in the network. Task allocation algorithms assign these tasks to specific sensor nodes in the network for execution. Given the resource-constrained and distributed nature of wireless sensor networks (WSNs), existing static (offline) task scheduling may not be practical. Therefore there...
Service orientation is a promising paradigm for business architectures. Implementing a service-oriented architecture (SOA) promises increasing flexibility as well as agility and decreasing development and maintenance costs of IT landscapes. Simultaneously with these advantages, the implementation of an SOA entails some inherent challenges. The flexible orchestration of services increases the complexity...
The utility computing in a grid demands much more adaptability and dynamism when certain levels of commitments are to be complied with. Users with distinct priorities are categorized on the basis of the types of organizations or applications they belong to and can submit multiple jobs with varying specific needs. The interests of consumers and the resource service providers must be equally watched...
6LoWPAN is a low-power wireless personal area network and a technique to apply TCP/IP stack to sensor networks. By installing IPv6 stack to the sensor node, the sensor networks have interoperability with the external IPv6 network. To solve the 6LoWPAN's restrictions, IETF working group recently published problems, IPv6 header compression, and routing mechanism requirement documents through their study...
A cost-time trade-off bulk transportation problem (BTP) with the objectives to minimize the total cost and duration of the bulk transportation without according priorities to them is considered. The entire requirement of each destination is to be met from a single source only; however a source can supply to any number of destinations subject to the availability of the commodity at it. The Extremum...
Today's backbone communication networks serve a wide range of services with different availability requirements. Each customer has a contract, denoted a Service Level Agreement (SLA) which specifies the availability requirement over the contract period. In the literature, different provisioning strategies to establish connection arrangements capable of meeting a statistical asymptotic availability...
The digital ecosystem (DE) paradigm is a holistic management/design/integration paradigm that is based on the notion of self-interested, self-managing, proactive and autonomous digital entities that evolve and self-organize. While a DE can be realized using different technologies Web services (WS) are particularly promising due to their widespread acceptance within industry and academia, established...
Many critical activities rely on the correct and uninterrupted operation of networked Computer Information Systems (CIS). Such systems are however exposed to many different kinds of risk, and thus many researches have been taking place for enabling them to perform self monitoring and self healing to maintain their operation over time as specified by domain policies. This capability is often referred...
Distributed urgent computing workflows often require data to be staged between multiple computational resources. Since these workflows execute in shared computing environments where users compete for resource usage, it is necessary to allocate resources that can meet the deadlines associated with time-critical workflows and can tolerate interference from other users. In this paper, we evaluate the...
Stream processing systems have become important, as applications like media broadcasting, sensor network monitoring and on-line data analysis increasingly rely on real-time stream processing. Such systems are often challenged by the bursty nature of the applications. In this paper, we present BARRE (Burst Accommodation through Rate REconfiguration), a system to address the problem of bursty data streams...
The problem of finding efficient workload distribution techniques is becoming increasingly important today for heterogeneous distributed systems where the availability of compute nodes may change spontaneously over time. Therefore, the resource-allocation policy must be designed to be robust with respect to absence and re-emergence of compute nodes so that the performance of the system is maximized...
High service availability is difficult to achieve in mobile ad hoc networks. The service distribution protocol for mobile ad hoc networks increases the mobile service availability by employing coupled replication and hibernation mechanisms. In this paper, different hibernation behaviors are studied against the general performance of this protocol, especially the replica allocation correctness.
The broadcast problem including the plan design is considered. The data are inserted and numbered at predefined order into customized size relations. The server ability to create a full, Regular Broadcast Plan (RBP) with single and multiple channels after some data transformations is examined. The Regular Geometric Algorithm (RGA) prepares a RBP and enables the users to catch their items avoiding...
This paper describes an algorithm for making decision on allocation of funds to most deserving among competing applicants. Funds are consumable resource in nature, which are required by organization to execute their projects/schemes, especially government schemes. The algorithm considers multiple decision making factors to allocate weights to applicants. Based on the weight assigned and probability...
In recent years, a variety of wireless network technologies have been developed and deployed. Future mobile communication system will have a packet switched core. The access to the mobile communication system will not be restricted to the mobile cellular networks but may be via other wireless or even wired technologies. Such hybrid access can enable service convergence, joint resource management and...
Peer-to-peer backup systems provide mechanisms that allow participants to store their data cooperatively. When the proportion of unstable peers grows, these systems need to increase redundancy to maintain data availability. This redundancy could be reduced by storing data to more stable peers. In consequence, network traffic would be reduced and the global network??s storage capacity would be increased...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.