• Journal of the Korean Society for information Management
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• v.31 no.3
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• pp.111-131
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• 2014

The purpose of this study was to propose a guide for the acceptance and processes of open access in Korean Societies. Firstly, this study developed journal publishers' open access model focused on the relationship between types and strategies of open access. Secondly, this study investigated current status of journal publishers' open access strategies and the adoption degrees through SHERPA/RoMEO, DOAJ and PMC databases. Finally, on the basis of the result, this study proposed a guide to help Korean societies make journals more open or less open according to their situations as real. Korean societies can make informed decisions about how to derive open access.

• Journal of Korean Library and Information Science Society
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• v.41 no.2
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• pp.229-250
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• 2010

Open access policies are very important for the successful open access projects in any institutions. This study aims to propose elements to consider for establishing open access policies of universities. The 3 university institutional repositories' open access policies in Korea and foreign universities' policies registered in the ROARMAP are analyzed. The major categories proposed in the study are materials, time of deposition, depositors, copyright, level of requirement, exemption, usage, options for open access, and support.

• Journal of the Korean Society for Library and Information Science
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• v.44 no.3
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• pp.137-154
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• 2010

The purpose of this study is to examine the tendency of open access income models in gratis open access journals and fee-based online journals in Korea. This study found that there was no clear difference between two groups and fee-based online journals had several of the same characteristics of open access journals. That is, the societies published fee-based journals have requested APC to authors and additional page charges for the articles with research funding. Also, in case of fee-based online journals, the journals received subsidies from external funding agencies were more than free OA journals. These findings show that fee-based online journals in Korea have a lot of capability to transition to open access journals.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.33 no.6A
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• pp.652-658
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• 2008

In this paper, a new random access scheme is proposed to improve the probability of successful access. In the conventional scheme, a packet is transmitted by a user using one slot and considered successfully transmitted if a collision does not occur. In comparison, a packet of the proposed scheme is transmitted by a user using one or more slots and considered successfully transmitted if there is at least one slot without collision. We evaluate the optimal number of slots selected by users to maximize the probability of successful access when the probability distribution functions for the number of users are given such as Binomial and Poission distribution. From the numerical analysis, it is shown that the proposed scheme performs better than conventional scheme.

• Journal of the Korea Society of Computer and Information
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• v.26 no.1
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• pp.103-110
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• 2021

In this paper, we compare two access control mechanisms for D2D(Device-to-Device) systems in 5G wireless networks and propose an effective access control for 5G D2D networks. Currently, there is no specified access control for 5G D2D networks but there can be two access control approaches for 5G D2D networks. One is the UE-to-Network Relay based access control and the other is the Remote UE(User Equipment) based access control. The former is a UE-to-Network Relay carries out the access control check for 5G D2D networks but the latter is a Remote UE performs the access control check for 5G D2D networks. Through simulation and evaluation, we finally propose the Remote UE based access control for D2D systems in 5G wireless networks. The proposed approach minimizes signalling overhead between the UE-to-Network Relay and the Remote UE and more efficiently performs the access control check, when the access control functionalities are different from the UE-to-Network Relay in 5G D2D networks.

• Electronics and Telecommunications Trends
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• v.19 no.3 s.87
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• pp.41-50
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• 2004

본 고에서는 이동통신 액세스 망의 기술 동향에 대하여 4세대 이동통신 액세스 망으로의 진화 관점에서 살펴 본다. 주요 표준화 기관인 3GPP2, 3GPP2, MWIF의 연구결과를 중심으로 3세대 이후의 기술에 대한 표준화 연구를 살펴 보며, 액세스 망이 추구하는 목표 및 요구사항에 따른 액세스 망의 구조를 예측해 본다. 핵심 망 및 단말을 포함하여 향후에는 액세스 망도 인터넷 프로토콜 기반의 패킷 망으로 발전될 것이며, 구조 및 인터페이스의 개방화, 기능의 분산화를 토대로 기존의 다양한 액세스 망을 수용하는 4세대의 액세스 망으로 발전될 것이다. 따라서 마지막으로 이러한 추세에 따른 3세대 이후, 즉 4세대를 지향하는 이동통신 액세스 망에 대하여 요구사항 및 기능, 구조 등에 대하여 분석해 본다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 1999.11a
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• pp.438-442
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• 1999

More and more residential and mobile users are requiring access to the Internet. This paper presents an architecture of the network solution for cost-effective Internet/intranet access between users and Network Service Providers(NSPs). It also presents a functional architecture of Internet access router in the integrated access node system. The proposed Internet access router provides the functionality that users select any of a number of NSPs and mutiple user PPP calls are multiplexed over each secure tunnel between the Internet access router and NSP.

• Information and Communications Magazine
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• v.12 no.4
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• pp.63-72
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• 1995

본 고에서는 광대역 종합정보통신망(B-ISDN)에서 다양한 광대역통신 서비스를 통합 수용하는데 있어서 핵심이 되는 ATM 기본의 망 종단(NT) 기술과 광통신 기술을 융합한 광대역 액세스망의 서비스, 망구조 및 기능에 대하여 살펴보고, 광대역 액세스망의 역할을 분석한다. 이를 토대로 액세스망의 기능 요구사항과 설계 규격을 살펴보고 국내에서 개발되고 있는 집중형 액세스 시스템(CANS)과 분산형 액세스 시스템(DANS)의 개발 현황과 전망을 소개한다.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 1994.11a
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• pp.245-254
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• 1994

본 논문은 네트워크에서 불법적 사용자에 의한 정보의 보호를 위해, 강제적 액세스제어 정책(MAC)과 임의적 액세스 제어 정책(DAC)에 기초하여 네트워크에서의 액세스 제어 정책을 수립하고 이를 UNIX하에서 액세스 제어 리스트(ACL)와 보안 레이블에 기초하여 수행될 수 있도록 설계하고 구현하였다.

• Journal of Korean Library and Information Science Society
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• v.38 no.1
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• pp.257-276
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• 2007

The major concern of scholarly communication system that consists of libraries, researchers, and publishers is scholarly journals. But there is a huge chasm between the groups that have their own respects and strategies, compensations, and rights about scholarly journals. This difference makes open access movement which has two strategies: Open Access Journal(OAJ) and Open Access Archives (OAA). This paper describes the current status and analyses serious limitations of OAJ and OAA, especially, including the present address in the field of library and information science.