• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.1586-1589
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• 2005

GUMF (Global User Management Framework) that is proposed in this research can be applied to next generation network such as BcN (Broadband convergence Network), it is QoS guaranteed security framework for user that can solve present Internet's security vulnerability. GUMF offers anonymity for user of service and use the user's real-name or ID for management of service and it is technology that can realize secure QoS. GUMF needs management framework, UMS (User Management System), VNC (Virtual Network Controller) etc. UMS consists of root UMS in country dimension and Local UMS in each site dimension. VNC is network security equipment including VPN, QoS and security functions etc., and it achieves the QoSS (Quality of Security Service) and CLS(Communication Level Switching) functions. GUMF can offer safety in bandwidth consumption attacks such as worm propagation and DoS/DDoS, IP spoofing attack, and current most attack such as abusing of private information because it can offer the different QoS guaranteed network according to user's grades. User's grades are divided by 4 levels from Level 0 to Level 3, and user's security service level is decided according to level of the private information. Level 3 users that offer bio-information can receive secure network service that privacy is guaranteed. Therefore, GUMF that is proposed in this research can offer profit model to ISP and NSP, and can be utilized by strategy for secure u-Korea realization.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2023년도 추계학술대회
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• pp.180-181
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• 2023

본 논문은 해양 환경에서 항로표지 내에 탑재되는 등명기, 배터리, BMS, 통신장치 등의 전원 공급 및 각 모듈들 간의 유선 데이터 통신에 사용할 수 있는 커넥터 인터페이스 규격을 제시한다. 제안하는 규격은 M12 커넥터 규격을 이용하여 내구성을 확보하고 방수방진을 지원한다. 이를 통해 극한의 온·습도에 노출되며 태풍, 파도 등의 변수가 많은 해양 환경에서의 안정적인 연결성 유지를 기대할 수 있다.

• International Journal of Computer Science & Network Security
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• 제21권3호
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• pp.94-102
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• 2021

The study aimed to define all the main determinants of writing a research paper in an integrated manner within the requirements of the science network journals, by introducing scientific research and the steps of writing a research paper, starting from choosing the title to writing the abstract, identifying the research problem, questions, importance and objectives of the study, how to choose previous studies, research methodology and tools, discussion and results In addition to determining the acceptable percentage of plagiarism for science network journals, recommendations, choosing appropriate references and choosing the appropriate references, in addition to determining the acceptable percentage of plagiarism for the journals of the Network of Science, the researcher used the method of analytical investigative research to find out the axes of the study and analyze different reference citation methods to deal with different sources of information (articles-books-theses-conference works-reviews), In addition to studying the most important international programs for measuring plagiarism ratios that are accredited within the journals of the Science Network, and the study concluded that the researcher must present original and innovative results, add an integrated and logical work, take into account all the scientific conditions in the design of the research, its steps and ethics, and take into account the international standards in citing Reference, taking into account the rates of plagiarism within Web of Science journals.

• 한국통신학회논문지
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• 제37B권10호
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• pp.877-888
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• 2012

네트워크 가상화 기술은 NaaS (Network as a Service) 또는 SDN (Software Defined Network)으로 불리는 서비스 지향 아키텍처를 추구하는 미래인터넷에서 중요하게 다루고 있는 연구 분야이다. 네트워크 가상화는 혁신적인 프로토콜들에 대한 상호 독립적인 시험이 가능한 네트워크 테스트베드 구축 기술로서 미래인터넷 연구에서 중요한 역할을 할 것으로 기대하고 있다. 본 논문에서는 단일 도메인의 중소규모 연구망에서 네트워크 가상화를 통해 사용자가 정의하는 토폴로지와 대역폭을 제공하여 다중 사용자의 서비스 트래픽들을 분리, 관리함을 목적으로 하는 제어프레임워크를 제안한다. 본 프레임워크(VIMS; Virtual network Integrated control and Management System)는 이기종의 가상네트워크 장비 제어평면을 수용함으로써 장비에 변경을 요하지 않고 확장할 수 있는 구조를 지닌다. KOREN (Korea advanced REsearch Network)에 적용, 실현 가능성을 확인하였으며 GENI의 제어프레임워크와 비교를 통해 본 프레임워크와의 차이점과 개선을 위한 향후 연구 방향을 도출한다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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• pp.546-549
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• 2005

It is evident that advancement of ubiquitous technologies in the near future guarantees more convenient and plentiful living. With regarding to car life, we dream of an automatic driving without any effort of operation. This paper touches the realization issue, a convergence of wireless sensor network and Telematics specializing on an information routing mechanism between participating components in Telematics sensor communication network. We list up new requirements of wireless sensor network deployed for Telematics services. Then context-aware routing architecture is proposed in order to solve these constraints, in which a network topology for routing can be dynamically configured according to the combination of context models of network components.

• ETRI Journal
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• 제44권6호
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• pp.936-944
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• 2022

The mobile network allows redundant transmission via disjoint paths to support high-reliability communication (e.g., ultrareliable and low-latency communications [URLLC]). Although redundant transmission can improve communication reliability, it also increases network costs (e.g., traffic and control overhead). In this study, we propose a reliability-guaranteed multipath allocation algorithm (RG-MAA) that allocates appropriate paths by considering the path setup time and dynamicity of the reliability paths. We develop an optimization problem using a constrained Markov decision process (CMDP) to minimize network costs while ensuring the required communication reliability. The evaluation results show that RG-MAA can reduce network costs by up to 30% compared with the scheme that uses all possible paths while ensuring the required communication reliability.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제7권7호
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• pp.1610-1623
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• 2013

In-network caching is a key component of information-centric networking (ICN) for reducing content download time, network traffic, and server workload. Data center network (DCN) is an ideal candidate for applying the ICN design principles. In this paper, we have evaluated the effectiveness of caching placement and replacement in DCN with butterfly-topology. We also suggest a new cache placement policy based on the number of routing nodes (i.e., hop counts) through which travels the content. With a probability inversely proportional to the hop counts, the caching placement policy makes each routing node to cache content chunks. Simulation results lead us to conclude (i) cache placement policy is more effective for cache performance than cache replacement, (ii) the suggested cache placement policy has better caching performance for butterfly-type DCNs than the traditional caching placement policies such as ALWASYS and FIX(P), and (iii) high cache hit ratio does not always imply low average hop counts.

• 수산해양교육연구
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• 제29권1호
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• pp.224-233
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• 2017

This study aims to analyze the research trend of lifelong education in Korea over the last 10 years based on social network analysis. To do this, a dataset has been collected from KCI (Korea Citation Index) database. According to the results of the study, firstly, the current status of lifelong education research by the year in the last 10 years showed a relatively high ratio between 2008 and 2009 and 2014 ~ 2015. Secondly, the most active networks between authors and journals constitute a key group in the order of 'Lifelong Education Study' and 'Lifelong Learning Society'. Thirdly, the research institutes with the largest number of lifelong education research papers are Soongsil University, Dong-Eui University, and Korea National Open University. In the network with the authors' network, the only authors were K8 working at Chonbuk National University, and the co-authors, H4, who works at Kyungpook National University, showed the most active network. Finally, the core keyword network based on the thesis topic was analyzed as having higher connection centrality in the order of 'lifelong education', 'lifelong educator', and 'university lifelong education'.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2006년도 춘계종합학술대회
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• pp.733-736
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• 2006

다양한 이동 통신 기술, 센서, 원격 제어 및 네트워크 인프라가 발달하고 생활의 질에 대한 기대치가 높아짐에 따라 홈네트워크에 관한 다양한 기술과 서비스에 관한 연구와 개발이 활발히 진행되고 있다. 홈네트워크 기술은 아직까지는 초기 투자 단계로서 사용자에게 필요한 서비스를 개발하고 편리성을 증대시키는 방향으로 개발되고 있지만, 더욱 서비스가 활성화되면 편리성을 보장할 수 있는 안전성에 관한 연구가 병행되어야 할 것이다. 따라서 본 논문에서는 내/외부의 불법 접근 및 허가되지 않은 접근으로부터 홈네트워크 시스템을 안전하게 방어하고 보호하기 위한 접근 제어 메커니즘을 제안한다.

• ETRI Journal
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• 제27권1호
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• pp.110-113
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• 2005

The resilient packet ring (RPR) is a data optimized ring network, where one of the key issues is on load balancing for competing streams of elastic traffic. This paper suggests three efficient traffic loading algorithms on the RPR. For the algorithms, we evaluate their efficiency via analysis or simulation.