• KIISE Transactions on Computing Practices
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• v.20 no.12
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• pp.706-710
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• 2014

The Internet of Things (IoT) is a concept that describes environments where various things are connected to the Internet. These objects can identify themselves and allow other devices the identify them as well. DLNA focuses on delivering interoperability guidelines based on open industry standards in order to complete cross-industry digital convergence. This paper proposes a two-way DLNA Adaptor and addresses the methodologies of service interoperation of the media contents. In this paper, the designs of the components of the DLNA Adaptor are presented, and the conclusion provides general remarks and a discussion of future work.

• Journal of KIISE
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• v.42 no.6
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• pp.807-816
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• 2015

The Internet of Things (IoT) has recently been showered with much attention worldwide. Various kinds of devices, communicating with each other in the IoT, demand multiple communication technologies to coexist. In this environment, mobile devices may utilize the vertical handover between different wireless radio interfaces such as Wi-Fi and Bluetooth, for efficient data transfer. In this paper, an IoT broker is implemented to support the vertical handover, which can also support and manage heterogeneous devices and communication interfaces. The handover is activated based on RSSI, Link Quality values, and real time traffic. The experimental results show that the proposed handover system substantially improves QoS in Bluetooth and reduces power consumption in mobile devices as compared with a system using only Wi-Fi.

• Electronics and Telecommunications Trends
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• v.29 no.5
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• pp.18-29
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• 2014

최근 해양안전에 대한 국내외의 관심과 함께 통신기술의 발전, 선박에 다양한 디지털 및 전자장비들이 도입됨에 따라 선박을 위한 전자항법체계인 e-navigation이 주목을 받고 있다. E-navigation은 안전뿐 아니라, 해양에서의 디지털시대의 서막을 여는 IT 융합의 새로운 패러다임을 제공하고 있다. 본 논문에서는 e-navigation과 관련하여 국제해사기구(IMO), 국제항로표지협회(IALA: International Association of Lighthouse Authorities), 국제수로기구 (IHO: International Hydrographic Organization), 국제전기협회(IEC) 등의 관련 기술에 대한 국제표준화기구의 최근 동향에 대해서 살펴볼 것이다. 또한, 한국형 e-navigation에 대한 국내 동향과 함께 최근 각광을 받고 있는 사물인터넷(IoT: Internet of Things) 기술을 해양분야에 적용하기 위한 방안에 대해서도 다루고자 한다.

• Broadcasting and Media Magazine
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• v.22 no.4
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• pp.34-40
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• 2017

현재 멀티미디어는 사용자의 감성을 자극하며 몰입감과 현장감을 자아내고 극대화할 수 있는 실감 미디어(Immersive media)로 발전하고 있다. 이러한 실감 미디어 내 시청각 정보의 저장과 표현을 위한 데이터 템플릿과 인터페이스들은 상당히 많은 부분에서 표준화되어 왔지만, 이와 달리 후각, 미각, 촉각 등의 실감 정보들은 관련 표준들의 부재로 인해 많은 연구 개발에도 불구하고 해당 서비스들의 상용화가 지연되고 있는 중이다. 이 문제를 해결하기 위해 이 논문에서는 후각 미디어에 초점을 맞추어 MPEG-V 표준과 현재 진행 중인 MPEG-IoMT(Internet of Media Thing) 표준을 사용하여 미디어 사물 인터넷 내 후각 인터렉션을 위해 필요한 표준 데이터 템플릿과 인터페이스를 기술하였다.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.7 no.6
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• pp.871-880
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• 2017

Recently, service based on internet is inter-connected and integrated with a variety of connection. This kind of internet of things consist of heterogenous devices such as sensor node, devices and end-to end equipment which used in conventional protocols and services. The representative system is healthcare system. From healthcare appliance used by IoT, patient and doctor can utilize healthcare information with safety and high speed management. It is very convenient management to operate mobility. But it induced security and vulnerability issues because it has small memory capacity, low power supply and low computing power. This made impossible to implement security algorithm with embedded engine based on hardware. Nowdays, we can't realize conventional standard algorithm due to these kinds of reasons. From the critical issues, it occurred security and vulnerability issues. Therefore, we analysed and compared with conventional method and proposed techniques. Finally, we evaluated security issues and requirement for end-to-end point healthcare system based on internet of things.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.33 no.3
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• pp.537-547
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• 2023

As Internet of Things (IoT) technology evolves, IoT devices are being utilized in a variety of fields. However, it has become a new surface of cyber attacks and is affecting industries that did not previously consider cyber breaches. After a intrusion occurs, post-processing and damage spread prevention are important, but it is difficult to respond due to the lackof standards and guidelines. Therefore, in order to respond to such incidents, this paper establishes an incident data collection procedure and presents the data that can be collected to improve the intrusion data acquisition method for general IoT devices. In addition, we proved the efficiency and feasibility of the data collection procedure through experiments.

• The Magazine of Kiice
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• v.19 no.1
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• pp.31-43
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• 2018

• The Journal of the Korea institute of electronic communication sciences
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• v.15 no.3
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• pp.587-592
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• 2020

This paper analyzed the curriculum of computer and software-related majors educating the core IT-related skills needed for the 4th Industrial Revolution. The analysis was conducted on 158 majors classified as applied software, computer science and computer engineering according to the standard classification of university education units by the Standard Classification Committee of the Korean Council of University Education. The current status of introduction of curricular divided into the fields of Internet of Things(IoT) & mobile, cloud & big data, artificial intelligence(AI), and information security was analyzed among the contents of education in the relevant departments. According to the analysis, an average of 81.6% of the majors for each group of curricular organized related subjects into the curriculum. The Curriculum Response Index for the 4th industrial revolution(CRI4th) by major, calculated by weighting track operations by education sector, averaged 27.5 point out of 100 point. And the IoT & mobile sector had the highest score of 42.3 points.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.42 no.4
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• pp.871-878
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• 2017

As the interest of things to the Internet increases, the market of IoT grows larger and devices and protocols related with IoT are evolving.As these IoT devices and protocols evolve, There was a problem with interoperability. As a result, market and standard of IoT are confused, and communication between objects and objects is being hindered by different platforms. Currently, various IoT platforms are being developed and interoperability with heterogeneous platforms is under study, but the protocols used on each platform are limited and designed to have no generalized structure. Therefore, in this paper, we analyze services of HTTP, CoAP, and MQTT protocols, which are typical in the Internet market, and design services that enable selective protocol communication. We also design resources that apply the RESTful API to generalize platform usage. and We implemented the platform through database modeling for quick processing and safety of the collected data. Through this process, devices communicating with different protocols can be interworked on one platform and We propose a "generalized selective protocol based Internet object data collecting platform" that can be applied to various protocols.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.10
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• pp.2465-2472
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• 2015

Wireless Medium Access Control (MAC) and routing technologies are the basic building blocks making it possible the Internet of Things (IoT). These technologies have been the focus of substantial research in the last decade. Nevertheless, as new networking standards for IoT are being proposed and different solutions are patched together, evaluating the performance of the network becomes unclear. In this paper, a new overview of MAC and routing protocols for IoT and new interactions are given. The IEEE 802.15.4 MAC and Routing Protocol for Low-power Lossy Network (RPL) routing protocols are taken as reference to exemplify and illustrate the discussion. Experimental results show that contention-based access MACs may hurt the routing, unless these two are carefully designed together.