• Journal of Digital Convergence
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• 제16권9호
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• pp.179-185
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• 2018

Technology of Internet of Things (IoT) which is receiving the spotlight recently as a new growth engine of Information Communications Technology (ICT) industry in the $4^{th}$ Industrial Revolution needs trustworthiness beyond simple technology of security. IoT devices should consider trustworthiness from planning and design of IoTs so that everyone who develop, evaluate and use the device can measure and trust its security. Increased number of IoTs and long lifetime result in the increased securituy vulnerability due to the difficulty of software patch and update. In this paper, we investigated security and scalability issues of current IoT devices through research of the technical, political and industrial trend of IoT. In order to overcome the limitations, we propose an automatic verification of software integrity utilizing and a political solution to apply cyber killchain based security mechanism using hash which is an element technology of blockchain to solve these problems.

• Journal of the Korean Geosynthetics Society
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• 제21권4호
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• pp.1-12
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• 2022

Generally, the plate load test and the field density test are conducted for compaction quality control in earthwork, and then additional analysis. Recently developed that the DCPT (Dynamic Cone Penetration Test) equipment for smart compaction quality control its the system are able to get location and real-time information about worker history management. The IoT-based the DCPT system improved the time-cost in the field compared traditional test, and the functions recording and storage of the DPI (Dynamic Cone Penetration Index) were automated. This paper describes using these DCPT equipment on in-situ and compared to the standards of the DCPT, and the compaction trend had be confirmed with DPI as the field test data. As a result, the DPI of the final compaction decreased by 1.4 times compared to the initial compaction, confirming the increase in the compaction strength of the subgrade compaction layer 10 to 14 cm deep from the surface. A trend of increasing compaction strength was observed. This showed a tendency to increase the compaction strength of the target DPI proposed by MnDOT and the results of the existing plate load test, but there was a difference in the increase rate. Therefore, additional studies are needed on domestic compaction materials and laboratory conditions for target DPI and correlation studies with the plate load tests. If this is reflected, it is suggested that DCPT will be widely used as smart construction equipment in earthworks.

• Electronics and Telecommunications Trends
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• 제33권5호
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• pp.51-63
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• 2018

Mobile cellular technology is evolving to accommodate a variety of vertical services, expanding the application from human-to-human communication to the Internet of Things(IoT). In particular, the fourth industrial revolution, bringing in a new vision in future smart factory, necessitates a new paradigm shift in wireless communication. Low latency and high reliability is a key issue in wireless applications for industrial IoT such as factory automation. In this paper, we review the recent progress in 5G URLLC (Ultra-Reliable Low Latency Communication) and discuss use cases, requirements, challenging technical issues, and potential solutions to support wireless factory automation such as discrete automation and process automation.

• Proceedings of the Korea Information Processing Society Conference
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• 한국정보처리학회 2014년도 춘계학술발표대회
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• pp.491-494
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• 2014

정보통신 기술의 발전으로 우리가 사용하는 모든 사물들이 네트워크를 통해서 사람과 상호 연결을 할 수 있는 시대로 접근하는 추세이다. 또한 ICT분야의 융합이 빠르게 발전하고 있으며, 이를 통해서 유비쿼터스 환경으로 도약하고 있다. 스마트 폰 이후에 센서 대중화, 비용 절약, 기기 보급 확산, 네트워크의 확대 등의 이유로 사물 통신 M2M(Machine to Machine)/사물 인터넷 IoT(Internet of Things) 기술이 점차 활용되고 있으며, 관련 분야의 많은 연구가 진행 중에 있다. 본 논문에서는 이러한 IoT/M2M의 기술 및 표준화 동향을 살펴보고 발전 방향을 예상해 보고자 한다.

• Electronics and Telecommunications Trends
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• 제36권6호
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• pp.13-24
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• 2021

Industrial networks has been developing various technologies from fieldbus technology to industrial Ethernet and time-sensitive networking. The industry expects that the 5G mobile network will solve the diverse and highly specific industrial site requirements. Accordingly, 3GPP has been developing standard functions to provide ultra-high reliability, ultra-high speed, ultra-connection, and ultra-low latency services, and 3GPP Rel-16 began developing ultra-low latency and ultra-high reliability communication functions for 5G mobile networks to support vertical industries. In this paper, we show the related standardization trends and requirements to apply industrial IoT service scenarios to 5G mobile networks, and in particular, we introduce 5G system features and extended 5G system architecture to provide time sensitive communication and time synchronization services.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권10호
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• pp.3256-3274
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• 2022

With the rapid development of information and communications technology, the construction of efficient, reliable, and safe Internet of Things (IoT) is an inevitable trend in order to meet high-quality demands for the forthcoming 6G communications. In this paper, we study a secure intelligent reflecting surface (IRS)-assisted IoT system where malicious eavesdropper trying to sniff out the desired information from the transmission links between the IRS and legitimate IoT devices. We discuss the system overall performance and propose a hybrid resource allocation scheme for maximizing the secrecy capacity and secrecy energy efficiency. In order to achieve the trade-off between transmission reliability, communication security, and energy efficiency, we develop a quantum-inspired marine predator algorithm (QMPA) for realizing rational configuration of system resources and prevent from eavesdropping. Simulation results demonstrate the superiority of the QMPA over other strategies. It is also indicated that proper IRS deployment and power allocation are beneficial for the enhancement of system overall capacity.

• Proceedings of the Korea Information Processing Society Conference
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• 한국정보처리학회 2020년도 추계학술발표대회
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• pp.454-457
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• 2020

생체인증 기술의 발전으로 매년 다양한 인증 기법들이 구현되고 있으며 시장 규모가 급격히 늘어나고 있다. 현재 대부분의 IoT 환경은 생체 인식 등의 사용자 인증 기술을 활용하여 기밀성을 유지하고 있다. 하지만 인증 기술에 사용되는 센서에 인증 우회 기법 등을 통해 오류가 발생하거나 제조사의 실수 등이 포함되는 경우 인증 과정에 대한 보안 위협이 발생할 수 있다. 본 논문에서는 IoT 장비에서 이뤄지는 생체인증의 종류와 종류에 따른 인증 위협요소들을 살펴보고 다중 생체인증 방식을 접목한 대응 프로세스를 알아본다.

• Journal of Service Research and Studies
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• 제2권2호
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• pp.91-98
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• 2012

The emergence of new types of embedded computing devices and developments in wireless networking are broadening the domain of computing from the work place and home office to other facets of everyday life. This trend is expected to lead to a proliferation of Internet of Things (IoT) environments, in which inexpensive and interconnected computing devices are capable of supporting users in a range of tasks. Context-aware computing is a key source to develop such smart services. However, there are many challenges to enable services to be smart; Heterogeneous Computing Environments, Resource Limitations, Large Amount of Data Produced, and Different Requirements for Context Interpretation. Because of these challenges, there are difficulties in providing smart service by utilizing IoT devices. Currently, many researchers are conducting researches on mobile-computing based smart service development and provisioning and network infrastructure for interconnected IoT devices. Still, there are some limitations on developing core technologies for IoT computing based smart service development. In order to remedy this situation, this thesis presents a reusable framework that provides unique and noble features which are required in developing advanced context-aware IoT applications.

• Journal of the Korea Institute of Information and Communication Engineering
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• 제20권10호
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• pp.1895-1902
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• 2016

People and goods through the recent smart device, IoT to things and things are connected, it has emerged as the driving force of a new economic growth in the future. While conducting research of this international standardization organization in the IoT-based protocol, to the institutions and companies that belong to the standards bodies interests are different from each other, protocols have been developed also, different order, heterogeneous device interoperability has emerged is a problem that the lowering of. Therefore, in this paper, to investigate the structure of the MQTT and CoAP that are commonly used and trying to figure out the trend of low power consumption, a lightweight protocol that is suitable for IoT environment, process and standardization trends of evolution, features, analysis and on, to derive the advantages and disadvantages, and comparative analysis, it presented a development scheme for each protocol.

• Journal of the Korea Institute of Information and Communication Engineering
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• 제19권11호
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• pp.2683-2688
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• 2015

Internet of Things(IoT) using a variety of technologies in combination provides a convenient, elevated range of services to users. IoT has been noted in combining the fields of medical service in particular. However, with the advent and growing of IoT, the more medical services are evolving, security problems caused by leakage of personal health information will become more serious. U-Health and medical devices, which deal mainly the personal health information, is required to a high level of privacy and security of health information. Therefore, the introduction of the IoT in the healthcare industry requires the medical information security as a prerequisite. This study analyzes security status and trend of IoT, personal medical information leakage cases, the health information protection measures in accordance with the life cycle of medical information, and the standardized protection technologies.