• 한국산업정보학회논문지
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• 제16권5호
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• pp.73-81
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• 2011

대학에서 제공되고 있는 교육을 살펴보면 개별적인 학생들의 요구를 만족시키기 어렵다. 이는 대학교육이 한명의 서비스제공자에 의해 많은 사람들에게 동시에 제공되기 때문으로 볼 수 있다. 이를 감안하여 학생들이 보다 다양한 정보통신기술을 활용할 수 있다면 교육이 제공되는 과정이나 컨텐츠에 대해 더 만족할 수 있을 수 있다고 가정하였다. 연구에서는 학생들의 기술수용성 정도가 관계품질, 교육서비스품질, 교육서비스만족에 미치는 영향을 살펴보고 학생들의 정보통신기술의 활용정도가 높고 낮음에 따라 이들 관계에 어떠한 영향을 미치는지에 대해서도 살펴보았다. 검증결과 기술수용성이 높으면 관계품질, 교육서비스품질을 높일 수 있고, 관계 품질과 교육서비스품질도 교육서비스만족을 높일 수 있다고 제시되었다. 정보통신기술의 활용정도도 이들 관계에 영향을 미치는 것으로 나타났다. 본 연구는 교육인프라가 부족한 지방의 중소 도시에 위치한 대학에서 연구를 진행함으로써 향후 해당 컨텐츠를 교육에 활용하게 되었을 경우 더 많은 효과를 볼 수 있으리라 생각된다.

• Journal of Communications and Networks
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• 제6권3호
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• pp.269-279
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• 2004

A new online multi-layer integrated routing (MLIR) scheme that combines IP (electrical) layer routing with WDM (optical) layer routing is investigated. It is a highly efficient and cost-effective routing scheme viable for the next generation integrated optical Internet. A new simplified weighted graph model for the integrated optical Internet consisted of optical routers with multi-granularity optical-electrical hybrid switching capability is firstly proposed. Then, based on the proposed graph model, we develop an online integrated routing scheme called differentiated weighted fair algorithm (DWFA) employing adaptive admission control (routing) strategies with the motivation of service/bandwidth differentiation, which can jointly solve multi-layer routing problem by simply applying the minimal weighted path computation algorithm. The major objective of DWFA is fourfold: 1) Quality of service (QoS) routing for traffic requests with various priorities; 2) blocking fairness for traffic requests with various bandwidth granularities; 3) adaptive routing according to the policy parameters from service provider; 4) lower computational complexity. Simulation results show that DWFA performs better than traditional overlay routing schemes such as optical-first-routing (OFR) and electrical-first-routing (EFR), in terms of traffic blocking ratio, traffic blocking fairness, average traffic logical hop counts, and global network resource utilization. It has been proved that the DWFA is a simple, comprehensive, and practical scheme of integrated routing in optical Internet for service providers.

• 한국통신학회논문지
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• 제37C권10호
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• pp.915-924
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• 2012

일반적으로 하나의 모바일 디바이스에 직비, 블루투스, 와이파이, 3G 와 같은 무선통신 인터페이스가 여러 개 구비되어 있지만 서비스를 이용할 때는 고정적으로 하나의 통신 인터페이스만 이용하고 있다. 본 논문에서는 다양한 통신 인터페이스를 효율적으로 사용하기 위하여 무선통신 인터페이스들 간의 능동적인 전환 기법을 제안한다. 이 기법은 통신 서비스에 따라 각 무선통신 인터페이스의 특징을 살려서 적합한 무선통신 인터페이스를 선택하고 전환하는 기법으로서, 전력 소비를 줄일 수 있고 인터페이스의 효율성을 높이는 효과가 있다.

• Journal of Multimedia Information System
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• 제6권3호
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• pp.131-138
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• 2019

With the rapid evolution of communication technology, it became possible to overcome the spatial and temporal limitations faced by humans to some extent. Furthermore, the quality of personal life was revolutionized with the emergence of the personal communication device commonly known as the smart phone. In terms of defense networks, however, due to restrictions from the military and security perspectives, the use of smart phones has been prohibited and controlled in the army; thus, they are not being used for any defense strategy purposes as yet. Despite the current consideration of smart phones for military communication, due to the difficulties of network configuration and the high cost of the necessary communication devices, the main tools of communication between soldiers are limited to the use of flag, voice or hand signals, which are all very primitive. Although these primitive tools can be very effective in certain cases, they cannot overcome temporal and spatial limitations. Likewise, depending on the level of the communication skills of each individual, communication efficiency can vary significantly. As the term of military service continues to be shortened, however, types of communication of varying efficiency depending on the levels of skills of each individual newly added to the military is not desirable at all. To address this problem, it is essential to prepare an intuitive network configuration that facilitates use by soldiers in a short period of time by easily configuring the strategy network at a low cost while maintaining its security. Therefore, in this article, the author proposes a Zigbee-based local strategic network by using Opnet and performs a simulation accordingly.

• 한국병원경영학회지
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• 제27권3호
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• pp.15-25
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• 2022

Purposes: This study aimed to identify the relationships among personal and organizational communication skills, occupational stress, and patient safety activity levels of two nursing workforce groups (nurses and nursing assistants) who provide integrated nursing care services. Methodology: The study design is a cross-sectional study. Seventy-one nurses and forty-three nursing assistants working in the integrated nursing care service wards participated in this study. The data were collected using a self-reported questionnaire from June to July 2021. The relationships among the variables were analyzed using the Pearson correlation coefficient. Findings: Nurses' personal communication skills (r=.294, p=.013), organizational communication skills (r=.408, p<.001), and occupational stress (r=.243, p=.041) were associated with their patient safety activities. However, nursing assistants' personal communication skills, organizational communication, and occupational stress were not correlated with their patient safety activities. Practical Implication: Patient safety activities of nurses were related to their communication skills and occupational stress, but nurse assistants were not. Therefore, nurses should encourage nursing assistants to responsibly engage in patient safety activities and supervise their works appropriately to achieve high-quality care.

• 전자통신동향분석
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• 제37권6호
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• pp.54-63
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• 2022

This paper discusses service discoveries for smart trusted reality (TR) glass and networks developed by the Electronics and Telecommunications Research Institute. TR glass provides a differentiated gaze communication service from the well-known AR glass. Services include on-off of products that reach the eye, encryption of courier addresses, and time-based networking services. This paper addresses the technical roots and service scalability of TR glass. Furthermore, the agricultural sector was selected to provide microservices configuration, connectivity with 5G communication, and a full range of applications for extended services.

• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2008년도 정보통신설비 학술대회
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• pp.273-276
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• 2008

This article describes a LED illumination infrastructure for ubiquitous society based on the Visible Light Communication technology. The VLC is one of the advanced communication system using "Visible Light". The VLC system has a lot of advantageous features and can be used in various places for the next future generation. So, we analyzed ubiquitous service model based on the VLC system and some applications. And we renewed discussion about LED illumination infrastructure for u-Society.

• 한국시뮬레이션학회논문지
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• 제19권2호
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• pp.137-145
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• 2010

본 연구는 LBS(Location Based Service) 기반에 5.8-5.9Ghz RSU를 이용한 실시간 교통 시스템(RTS)에 관한 연구이다. 제안된 LBI(Location based Broadcast system on ITS)는 방송국 T-DMB 시스템과 ITS 기반 실시간 교통 시스템을 융합하고, 노변기지국(RSU:Road Side Unit)을 중심으로 제공되는 운전자를 위한 지역정보 기반 서비스이다. 본 방송국과 ITS의 융합은 IP기반 양방향 통신은 IP 기반으로 이루어지며, RSU를 이용하여 차량 위치의 파악을 통한 LBS(Location Based Service)를 제공한다. 지역 매크로 관리자(LMM)과 지역 방송국과 상호 정보 교환으로 정보 전달의 실시간성과 서비스의 다양성을 제공할 수 있었다. 기존 실시간 교통시스템에서 전송 범위(transmission area)의 한계와 기존 T-DMB의 단방향 서비스 문제를 상호 보완하였다. 이를 통해 개별 운전자의 실시간 양방향 서비스를 제공할 수 있었다. 또한 운전자들에게 실시간 교통 및 지역정보를 제공함으로써 분산효과와 서비스 확대를 제시하였다. 마지막으로 연구소 주변에 테스트 베드 구축과 구현으로 검증하였다.

• 한국전자통신학회논문지
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• 제9권12호
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• pp.1405-1414
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• 2014

사무실 관리 서비스 플랫폼은 사무실 센서 장치, G/DSCL(Gateway/Device Service Capability Layer), NSCL(Network Service Capability Layer), NA(Network Application)로 구성된다. 본 논문에서는 사무실 관리 서비스에 적합한 게이트웨이 리소스트리와 서비스 시나리오를 설계하고, 지능형 기능 모델링을 통해서 사무실 관리 서비스가 운영 될 수 있음을 보인다.

• 디지털산업정보학회논문지
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• 제6권2호
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• pp.81-89
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• 2010

The major worldwide communication network operators have designed and are building up the NGN with various network capabilities, which conventional Internet do not have. The open network service model makes these network capabilities available to the third party of the value added service providers through the standardized API providing users with more intelligent and enhanced services. This paper proposes the open network service model as NaaS (Network as a Service) and examines service models of several levels. It is believed that these efforts presented in this paper will make the network operators expand their service ranges through the opening of invested network resources producing more various communication services for users.