• Journal of Information Technology Applications and Management
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• 제21권3호
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• pp.79-96
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• 2014

In Kenya during the last one decade, public and private sectors have invested a lot of resources in computer based Information and Communication Technologies (ICT) to improve the quality of education in schools. The main objective has been to integrate ICT in the delivery of curriculum in order to improve the quality of teaching-learning and to produce ICT literate workforce. The computer based technologies are used in management, pedagogy, and communication. This paper presents results from a study that was conducted in Nairobi County in Kenya to determine the key factors in the integration of computer based ICT in teaching-learning in pre-primary and lower primary schools. Results had revealed that the use of computer based ICT in teaching-learning by both pre-primary and lower primary schools was influenced by accessibility of resources, capacity to use the technology, availability of time, and provision of technical support.

• 공학교육연구
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• 제20권3호
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• pp.25-31
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• 2017

As the world enters the era of the Fourth Industrial Revolution, which is represented by advanced technology, it not only changes the industrial field but also the education field. In recent years, Smart Learning has enriched learning by using diverse forms and technologies that utilize vast amount of information about learners' individual knowledge through the emergence of realistic and intelligent contents that combine high technology such as artificial intelligence, big data and virtual reality and there is an increasing interest in intelligent adaptive learning, which can customize individual education. Therefore, the purpose of this study is to explore intelligent adaptive learning method through recent smart education environment, beyond traditional writing-based communication education which is highly dependent on the competency of instructors. In this study, we analyzed the various learner information collected in the communication course and constructed a concrete teaching and learning method of intelligent adaptive learning based on the instructor's intended smart contents. The result of this study is expected to be the basis of highly personalized teaching and learning method of digital method in communication education which is emphasized in the fourth industrial revolution era.

• Journal of information and communication convergence engineering
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• 제9권5호
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• pp.523-529
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• 2011

In this paper an inter-layer protocol, referred to as a Multi-Network Selector (MNS) is proposed for multiband maritime networks. A MNS is located between the data-link layer and the network layer and performs vertical handover when a ship moves another radio network. In order to provide seamless data transfer to different radio networks, the MNS uses received signal strength (RSS) and ship's location information as decision parameters for vertical handover, which can avoid ping-pong effect and reduces handover latency. In addition, we present related issues in order to implement the MNS for a multiband maritime network.

• 공학교육연구
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• 제9권2호
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• pp.71-81
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• 2006

2년제 대학의 전자 및 정보통신 관련 학과에서 전자분야의 생산 공정 관리를 담당하는 테크니션을 양성하기 위한 교과과정 개발을 위해서는 생산 공정 관리자의 직무를 체계적으로 분석하고 정의하며, 관련기술과 도구에 대한 기술이 필요하다. 이 연구에서는 생산 공정 관리를 담당하는 중간관리자가 갖추어야 할 직무능력과 관련하여 3가지 직무에 대해서 22가지의 테스크를 정의하고, 이를 6가지 교과로 분류하고 이들 교과에서 교육할 내용을 12가지 주제로 정리하였다. 이를 통해서 전자관련 분야의 생산 공정 관리를 위한 중간관리자를 효율적으로 교육할 수 있는 교과과정 모형을 제시하였다.

• 기술혁신연구
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• 제5권1호
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• pp.223-248
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• 1997

In this study the comparative analysis of four nations' Delphi technological forecasts in information and communication industry was carried out. The nations were Korea, Japan, Germany and France. The reliability test of realization time forecast was also conducted. There were some technologies of which four nations forecast almost same realization time whereas other technologies which four nations showed large variance in forecasting realization time. This means that experts from different nations had different views and prospects on the same technology. It is expected that prospecting international technological trend from this study will contribute to formulating long-range plan for technological development in information and communication in Korea. The result of the comparative analysis of four nations' forecasts in information and communication technology can be summarized as follows. a)As for the realization time, most of the technologies were forecast by four nations to be similar, the differences ranging from one to three years. It was found that on the whole, the longer the time of the forecast, the bigger the variance. The German forecast showed the biggest variance. b)In reliability test Korean was found to be the most reliable and Japan, France and Germany were in descending order. The response of all panel members was found to be more reliable than that of the panel members with high expertise, which means that there were substantially different views among panel members with high expertise on the realization time of the same technology.

• Journal of Communications and Networks
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• 제13권6호
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• pp.612-620
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• 2011

Recently, one of the problems with the Internet is the issue of scalability. To this end, locator/identifier separation protocol (LISP), which separates end-system identifiers and routing locators, has been proposed as a solution. In the LISP deployed network, the ingress and egress nodes of inter-AS traffic is determined by edge router selection (ERS) and endpoint identifier-routing locator mapping assignment (ERMA). In this paper, joint optimizations of ERS and ERMA for stub networks with and without predetermined link weights are studied and the mixed integer linear programming (MILP) formulations for the problems are given. To make the problem with optimizable link weights tractable, a revised local search algorithm is also proposed. Simulation results show that joint optimization of ERS and ERMA enables better network performance.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권12호
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• pp.6121-6144
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• 2019

Numerous privacy-preserving authentication schemes have been proposed but vehicular ad hoc networks (VANETs) still suffer from security and privacy issues as well as computation and communication overheads. In this paper, we proposed a robust conditional privacy-preserving authentication scheme based on pseudonym root with cuckoo filter to meet security and privacy requirements and reduce computation and communication overheads. In our proposed scheme, we used a new idea to generate pseudonyms for vehicles where each on-board unit (OBU) saves one pseudonym, named as "pseudonym root," and generates all pseudonyms from the same pseudonym. Therefore, OBU does not need to enlarge its storage. In addition, the scheme does not use bilinear pairing operation that causes computation overhead and has no certification revocation list that leads to computation and communication overheads. The proposed scheme has lightweight mutual authentication among all parties and just for once. Moreover, it provides strong anonymity to preserve privacy and resists ordinary attacks. We analyzed our proposed scheme and showed that it meets security and privacy requirements of VANETs and is more efficient than traditional schemes. The communication and computation overheads were also discussed to show the cost-effectiveness of the proposed scheme.

• 공학교육연구
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• 제13권3호
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• pp.68-77
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• 2010

본 논문에서는 다양한 정보기술을 사용하고 있는, 정보통신공학을 전공하는 대학생들이 정보통신윤리에 대해 어떻게 인식하고 행동하고 있으며 이와 관련된 변수들은 무엇인지 살펴보았다. 정보통신공학을 전공하고 있는 부산 및 경남 지역 대학생 288명을 대상으로 윤리의식 설문조사를 실시한 결과는 다음과 같다. 첫째, 정보통신윤리 행동의 하위영역별 수준을 분석한 결과 소극적 불법은 5점 환산평균 2.75점, 적극적 불법 1.75점, 존중하지 않음 1.65점, 참여행동 5점 환산평균 2.10점으로 나타나 중간점인 3점보다 낮아 대학생들의 정보통신윤리 행동수준은 매우 윤리적인 것으로 나타났다. 둘째, 남학생의 경우 연령이 높거나 고학년일수록, 또 종교가 있는 집단 쪽이 비윤리적 행동경향이 높았다. 온라인 사용 관련변수에 따라서는 이용시간과 지출비용이 많을수록, 이상주의 수준이 낮을수록 비윤리적 행동을 많이 했다. 셋째, 정보통신공학을 전공하는 대학생들의 정보통신윤리행동에 영향을 미치는 변수들의 설명력은 13-19%로 나타났다. 본 연구의 결과는 일반인에 비해 높은 수준의 서비스 활용을 하며, 졸업 후 정보통신 산업 종사자가 될 대학생들의 정보통신윤리행동을 관찰한 것으로 공학윤리 교육 및 정보통신윤리 교육프로그램을 개발하는데 기초적인 정보를 제공해 줄 것이다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2016년도 추계학술발표대회
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• pp.309-312
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• 2016

Green Internet of Things (IoT) is the study and practice of eco-friendly sustainable computing. The basic goal of green computing is to reduce the use of materials and maximize energy efficiency with reliable and secure communications. The paper presents various technologies and issues regarding green IoT. It also studies the green Information and Communication Technology (ICT) such as green M2M, green Cloud Computing (CC), and green Data Center (DC). In addition, this paper mentions about the reliability in IoT Communication and and issues to achieve green IoT communication by applying efficient activity scheduling technique for energy saving. Finally, we propose the green IoT-Home Service (GIHS) model which provides efficient energy management in home automation system.

• Journal of Electrical Engineering and Technology
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• 제5권1호
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• pp.1-7
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• 2010

Recently, smart grid has been considered a very important new energy delivery technology, and one that can help ensure a cleaner environment by making use of information and communication technology (ICT) in countries around the world. The many technological benefits smart grid offers is expected to bring about a huge change in the electric energy supply chain. In particular, smart grid with advanced ICT is likely to allow market agents to participate in the decision-making process in the restructured electricity industry, easily facilitating Homeostatic Utility Control. In this paper, we examine smart grid as a market externality, and then illustrate issues from the commercial market perspective as it relates to electricity market design. Finally, our paper identifies some of the impacts of smart grid on electricity market design, which may possibly be incorporated into the evolution of the electricity market, thus ensuring market efficiency.