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It is well known that load balancing and low delivery communication cost are two critical issues in mapping requests to servers in Content Delivery Networks (CDNs). However, the trade-off between these two performance metrics has not been yet quantitatively investigated in designing efficient request mapping schemes. In this work, we formalize this trade-off through a stochastic optimization problem...
Named Data Networking (NDN) is a promising Future Internet architecture to support efficient content distribution. Specifically, P2P may gain benefits from NDN, as NDN inherently provides a flexible forwarding plane for multi-source and multi-path communications. Existing studies in this area have proposed solutions, but these are adversely affected by link latency. This leads to illogical resource...
Analyzing the behavioral patterns to maintain the workload in cloud computing is very important. There are number of cloud data centers that have the facility to maintain this. But this paper has provided the approach for resource utilization based on two metrics, energy and cost function. This approach works within the workload which helps to understand the relationship between users and servers,...
In this paper, we investigate the tags polling problem for large, multireader RFID systems. We take an approach completely different from that used so far for multireader protocols. Up to now, in the proposed protocols for this and related problems, first readers are scheduled so that those with overlapping ranges never operate at the same time. Then, proper protocols for each so scheduled reader...
Cloud computing is an emerging technology which enables the cloud users to access the computing resources without having to pay huge capital expenses to scale up the IT infrastructure and reduces the management cost, in both hardware and software. A cloud introduces a resource rich computing model with features such as flexibility, pay per use, elasticity, scalability, and others. In this context,...
The paper describes a new system for remote measurement experiment. Set of cooperating applications is designed in LabVIEW environment. The system has a novel modular structure, when two modules called GO and DO module are matched for remote operation. The GO module distributes measured data over a network. The workplace is managed by a DO module. The designer of a new workplace develops only the...
Big data revolution has created an unprecedented demand for intelligent data management solutions on a large scale. While data management has traditionally been used as a synonym for relational data processing, in recent years a new group popularly known as NoSQL databases have emerged as a competitive alternative. There is a pressing need to gain greater understanding of the characteristics of modern...
ALICE (A Large Ion Collider Experiment) is the heavy-ion detector designed to study the physics of strongly interacting matter and the quark-gluon plasma at the CERN Large Hadron Collider (LHC). Following a successful Run 1 which ended in February 2013, the ALICE data acquisition (DAQ) entered a consolidation phase to prepare for Run 2 which will start in the beginning of 2015. One of the identified...
Publish/subscribe (pub/sub) is a popular communication paradigm in the design of large-scale distributed systems. A provider of a pub/sub service (whether centralized, peer-assisted, or based on a federated organization of cooperatively managed servers) commonly faces a fundamental challenge: given limited resources, how to maximize the satisfaction of subscribers? We provide, to the best of our knowledge,...
Location-Based Service (LBS) has become a vital part of our daily life. While enjoying the convenience provided by LBS, users may lose privacy since the untrusted LBS server has all the information about users in LBS and it may track them in various ways or release their personal data to third parties. To address the privacy issue, we propose a Dummy-Location Selection (DLS) algorithm to achieve k-anonymity...
Cloud gaming, i.e., real-time game playing via thin clients, relieves users from being forced to upgrade their computers and resolve the incompatibility issues between games and computers. As a result, cloud gaming is generating a great deal of interests among entrepreneurs, venture capitalists, general publics, and researchers. However, given the large design space, it is not yet known which cloud...
We propose a basic metric for design sheets of infrastructure in order to improve infrastructure quality. The metric is called as LOI (Line Of Item). LOI is a simple metric of infrastructure for measuring scale and quality of infrastructure, as same as LOC (Line Of Code) of software. In addition, a class diagram of design sheets is provided in UML software design technique. LOI and the class diagram...
Problem-based learning lab sessions shape a demanding environment, both for students as well for the teaching staff, due to the additional support required. This applies particularly to overcrowded classes. Under these conditions, some aspects do not perform well, like the efficiency of the provision of feedback and the orchestration of the session, jeopardizing the effectiveness of the learning activity...
The nature of operation of Thin Client computing makes their performance to be affected by both the quality of the network and the terminals. For the past few years, there are few analyses on the performance of Thin Clients that can produce reliable, valid, and up-to-date results collected in a well designed and evaluated experiment based research. This paper analyses the performance of Thin Clients...
Cloud computing is a promising computing model that enables convenient and on-demand network access to a shared pool of configurable computing resources. The first offered cloud service is moving data into the cloud. data owners let cloud service providers host their data on cloud servers and data consumers can access the data from the cloud servers. This new paradigm of data storage service also...
Today, Real-Time Strategy (RTS) games entertain tens of millions of players world-wide. This growing population expects new game designs and more scalable games every year. However, few tools and environments exist for game designers and implementers; of these, even fewer are available to researchers and game communities. In this work, we introduce RTSenv, an environment and associated set of tools...
Network services are often provided by a server cluster. From the viewpoint of operational expenditure as well as the global environment, power consumption of a server cluster must be decreased. Power consumption is decreased by operating as few computers as possible to offer sufficiently good performance against changes in load. For this operation, it is necessary to decide exactly how many computers...
Web Services standard-based system resource management is a new direction. In this paper, in order to verify the WS-Management standard whether to satisfy the realistic system resource management requirements, we use IBM MAPE categories to find more WS-Management related use cases. We design three typical use cases based on MAPE principles. Finally, we make a conclusion and propose our next-step work.
From queuing system approach, a compute intensive application of a single processor computer system can be defined as any application of a single processor computer system where the arrival rate of processes into the processor queue is greater than the departure rate of the processes from the processor. on the other hand, a non-compute intensive application can be defined as any application where...
Energy efficient computing has become a critical concern in the IT industry. For both hardware manufacturers and software developers, energy management work spans all levels from chips, operating systems, servers, to applications. In this paper, we overview energy-saving techniques developed at hardware, system software, and application levels, with an emphasis on energy-efficient computer servers...
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