• 한국정보통신설비학회:학술대회논문집
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• 2007.08a
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• pp.132-135
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• 2007

논문은 LG 데이콤의 TPS 서비스에서 사용되는 여러 단말의 초기 설치의 편의성을 최대한 보장하기 위한 자동 프로비저닝 시스템에 대한 연구이다. 이를 위해서 요구되는 단말기의 식별자와 암호화를 처리하기 위한 자동 프로비저닝 시스템의 수행 절차를 제안한다. 기본 구성은 홈게이트웨이를 이용한 홈네트워크를 구성하고 있다. 이를 기반으로 하여 IPTV 셋탑, WiFI 폰, PC 를 동시에 사용하기 위해서는 자동 프로비저닝 시스템에서 여러 단말기로 네트워크 접속에 필요한 정보(접속할 시스템의 주소(IP), 포트 및 환경 파일)를 전송하거나, 단말기가 직접 다운받을 수 있도록 한다. 이를 제공하는 시스템을 TPS 자동 프로비저닝 시스템이라 명하며, 이는 가입자의 개입없이 홈네트워크 환경과 멀티미어어 서비스 환경을 자동으로 설치함으로써 사용자의 편이성을 극대화하게 된다. 본 논문은 TPS 서비스와 디지털 홈 서비스의 근간이 되는 프로비저닝 플랫폼의 기술적 가능성을 검증함으로써 향후 관련 단말기 개발 및 개방형 서비스를 제공하기 위한 기초자료로 활용되고자 한다.

• KIPS Transactions on Computer and Communication Systems
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• v.4 no.3
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• pp.81-84
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• 2015

Cloud service is one of major technologies in modern IT business. Due to the dynamics of user demands, service providers need VM(Virtual Machine) provisioning mechanism to predict the amount of resources demanded by cloud users for the next service and to prepare the resources. VM provisioning provides the QoS to cloud user and maximize the revenue of a service provider by minimizing the expense. In this paper, we propose a new VM provisioning technique to minimize the total expense of a service provider by minimizing the expected value of the expense based on the predicted demands of users. To evaluate the effectiveness of our prediction technique, we compare the total expense of our technique with these of the other prediction techniques with a series of real trace data.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.8 no.1
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• pp.92-101
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• 2009

In this paper, we propose a dynamic bandwidth provisioning method based on traffic forecasting in IEEE 802.16e packet core network. The traffic is categorized as 4-different classes and the traffic amount of each class is forecasted by the Box-Jenkins method. To increase the service provider's revenue we provision the bandwidth of 4-different classes dynamically using greedy algorithm. The simulation results show that the number of packet drops is reduced and the level of QoS is improved compared with two different the methods - no priority considering and static provisioning.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.11a
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• pp.45-47
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• 2017

하둡은 대표적인 빅데이터 처리 프레임워크로 널리 사용되고 있지만 하둡 어플리케이션은 고성능컴퓨팅 환경에서 하둡 분산파일시스템이 아닌 러스터 병렬 파일시스템 위에서도 수행될 수 있다. 그러나 이를 위해서 추가적으로 러스터 병렬파일시스템을 구축하고 관리하는 것은 시간 소모적인 업무가 될 수 있다. 본 연구는 러스터 병렬파일시스템의 오토 프로비저닝을 위한 암바리 서비스의 설계 방안에 대해서 제안한다. 암바리는 하둡 클러스터의 프로비저닝, 관리, 모니터링을 위한 운영 관리 프레임워크이며 운영자의 필요에 따라서 확장할 수 있는 서비스 프레임워크를 제공한다. 본 연구에서는 암바리를 통해서 러스터 병렬파일시스템을 오토 프로비저닝하고 관리하기 위한 확장 서비스를 설계하였으며 서비스를 위한 컴포넌트와 각 컴포넌트별 중요한 기능 사항에 대해서 논하였다.

• KIISE Transactions on Computing Practices
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• v.22 no.11
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• pp.547-558
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• 2016

Construction of multi-site Cloud Infrastructure with OpenStack, the most popular cloud open source project with various ICT infrastructure technologies, has operational inefficiency due to installation complexity and geographical limitation. To address this inefficiency, we gradually developed automated installation/configuration tools to automate installation/configuration of Linux and OpenStack by complying with DevOps methodology over a multi-site OpenStack testbed called OF@KOREN SmartX Playground. However, the pre-developed installation tools can be used only for limited cases. Therefore, we designed and developed a prototype of SmartX Provisioning Framework which could conducts Playground-wide provisioning flexibly by following three steps of resource management in Software-defined Infrastructure. We verified the efficiency of the provisioning functionality of the framework by demonstrating an example of automated multi-site cloud construction.

• Journal of Digital Convergence
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• v.12 no.5
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• pp.239-247
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• 2014

Ubiquitous computing environment, as a new paradigm of the digital information era, has been introduced to respond to rapid changes in society and culture. Today, technology research around the world competes for the preoccupancy of the core technology as well as the development of technology for providing context aware system more intelligent, more sophisticated. Research in recent is underway the implementation of intelligent provisioning system using the ontology. Erstwhile provisioning system did not providing a personalized service that provides the service after context aware. Accordingly, there is a need for studies of intelligent context aware provisioning technique considering environments and context necessary to user. In this paper, in order to provide a service that is optimized for the needs of the user, propose an ontology-based intelligent provisioning service method taking into account the usage patterns and the context of the user. The proposed system is recognized the status of the user and demonstrated a process of reasoning techniques for fit service. And it is possible to the expansion of intelligence.

• Journal of the Korea Society for Simulation
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• v.22 no.1
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• pp.77-86
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• 2013

Cloud computing is one of the distributed computing environments and utilizes several computing resources. Cloud environment uses a virtual machine to process a requested job. To balance a workload and process a job rapidly, cloud environment uses a provisioning technique and assigns a task with a status of virtual machine. However, a scheduling method for cloud computing requires a definition of virtual machine availabilities, which have an obscure meaning. In this paper, we propose Fuzzy logic driven Virtual machine Provisioning scheduling using Resource Evaluation(FVPRE). FVPRE analyzes a state of every virtual machine and actualizes a value of resource availability. Thus FVPRE provides an efficient provisioning scheduling with a precise evaluation of resource availability. FVPRE shows a high throughput and utilization for job processing on cloud environments.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.37C no.12
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• pp.1230-1244
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• 2012

To boost the IPTV industry, it has being considered to provide terminal portability from one service provider to another for users. If the terminal portability is guaranteed, then a service user can purchase an IPTV terminal in a market and select an IPTV service provider. For this, the IPTV terminal should process a series of pre-configuration, so called provisioning procedure. Telecommunications Technology Association (TTA) established the standard of IPTV terminal provisioning procedure, TTAK.KO-08.0026. In this paper, we explain the revised standard TTAK.KO-08.0026/R2, and introduce the architecture, functions, operating procedures and parameters of the IPTV terminal provisioning system that we implemented based on it. Finally, we discuss the future issues of the standard of the IPTV terminal provisioning procedure.

• Journal of Internet of Things and Convergence
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• v.9 no.4
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• pp.9-14
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• 2023

Recently, resource optimization research has been actively conducted in enterprises and data centers to manage the rapid growth of big data. In particular, thin provisioning, which allocates a large number of resources compared to fixedly allocated storage resources, has the effect of reducing initial costs, but as the number of resources actually used increases, the cost effectiveness decreases and the management cost for allocating resources increases. In this paper, we propose a technique that divides the physical blocks of flash memory into single-bit cells and multi-bit cells, formats them with a hybrid technique, and manages them by dividing frequently used hot data and infrequently used cold data. The proposed technique has the advantage that the physical and allocated resources are the same, such as thick provisioning, and can be used without additional cost increase, and the underutilized resources can be managed in multi-bit cell blocks, such as thin provisioning, which can allocate more resources than typical storage devices. Finally, we estimated the resource optimization effectiveness of the proposed technique through experiments based on simulations.

• Journal of the Korea Society of Computer and Information
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• v.12 no.1 s.45
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• pp.89-98
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• 2007

In these days, the use of context in application running on mobile devices such as PDAs and smart Phone has become a crucial requirement for several research areas, including ubiquitous computing. mobile computing. Previous middlewares which support context provisioning uses single strategy. But, this paper proposed middleware integrated multiple strategies for context provisioning, namely internal sensors-based, external infrastructure-based, and distributed provisioning in ad hoc networks. Applications can query needed context items using SQL like context query language and require context information to use different provisioning mechanisms depending on resource availability and presence of external infrastructures.