• Title, Summary, Keyword: 공유

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Maximizing Bandwidth Utilization by Sharing Method of SSID Hiding in Multiple Wireless Routers (다중 무선 공유기에서 SSID Hiding 공유 기법을 이용한 대역폭 이용률 극대화)

  • Yoon, Young-Hyo;Kim, Myung-Won;Kwak, Hu-Keun;Chung, Kyu-Sik
    • The KIPS Transactions:PartC
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    • v.15C no.2
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    • pp.111-118
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    • 2008
  • A wireless router is a device which allows several wireless clients to share an internet line using NAT (Network Address Translation). In a school or a small office environment where many clients use multiple wireless routers, a client may select any one of wireless routers so that most clients can be clustered to a small set of the wireless routers. In such a case, there exists load unbalancing problem between clients and wireless routers. One of its result is that clients using the busiest router get poor service. The other is that the resource utilization of the whole wireless routers becomes very low. In order to resolve the problems, we propose a load sharing scheme to maximize network bandwidth utilization based on SSID(Service Set IDentifier) hiding. The proposed scheme keeps checking the available bandwidth of all the possible wireless routers in a time interval and select the most available one. If a new client appears, the most available router is visible to him or her whereas the others are not visible. This is handled by SSID hiding in the proposed scheme. We implemented the proposed scheme with ASUS WL 500G wireless router and performed experiments. Experimental results show the bandwidth utilization improvement compared to the existing method.

A Study on the effect of Shared Leadership on the Organizational Well-being (공유리더십이 조직웰빙에 미치는 영향)

  • Kim, Jin-Wook;Chang, Young-Chul;Kim, Young-Hunl
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.3
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    • pp.197-208
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    • 2016
  • The study showed that directional Shared Leadership and transformational Shared Leadership positively influences the relationship between Shared Leadership and interpersonal relationships in the view of organizational wellbeing. In addition, in the relationship between Shared Leadership and rewarding job experience of organizational wellbeing, three leadership types excluding directional Shared Leadership had positive effects. In addition, transformational Shared Leadership and empowering Shared Leadership had a positive impact on the relationship between Shared Leadership and organizational mood of organizational wellbeing. In the relationship between Shared Leadership and a sense of fulfillment in the view of organizational wellbeing, transformational Shared Leadership only had a positive effect. As is the case with the sense of fulfillment, the transformational Shared Leadership, of and itself, positively influenced the relationship between Shared Leadership and leisure of life of organizational wellbeing. A analysis of the study showed that transformational Shared Leadership has an impact on both organizational wellbeing and personal wellbeing. Transformational Shared Leadership helps set up mutual vision or strategies, or to challenge each other to enhance existing processes and procedures. On the other hand, directional Shared Leadership influences the interpersonal relations only, whereas transactional Shared Leadership impacts rewarding job experience only. Presenting clearer ideas on what to do to each other and sharing the reward for performance implies that the members of an organization can feel much more rewarded through job engagement.

A Study of Perceived Value and Intention to Use for Car Sharing Service : Based on User Experiences Serviced by Seoul Car Sharing (차량공유 서비스에 대한 지각된 가치와 이용의향에 관한 연구 : 서울시 나눔카 서비스 이용자를 중심으로)

  • Park, Keon Chul;Song, In-Kuk
    • Journal of Internet Computing and Services
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    • v.20 no.2
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    • pp.109-118
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    • 2019
  • The purpose of this study is to deliver both market-practical and civil-centric political implication for sharing economy by investigating the nature of consumer-adoption for car-sharing service. With the global interest and market proliferation of the sharing economy, various service models for sharing idle resources have also been released in Korea. Particularly, in case of car sharing service, public - private partnership projects are spreading rapidly in various local governments including Seoul, along with the growing demand for alternative transportation system centering on the urban area. This study conducted an empirical study on the process of accepting the car sharing service by analyzing the data collected from users of the car sharing service "Sharing Car(Nanum Car)" of Seoul Metropolitan Government. A survey was conducted on 281 users in their twenties who are in the age of main use among the experienced users of the "Sharing Car(NaNum)" residing in Seoul. The result of analysis on the relationship between these users' perceived value and intention to use the vehicle sharing service would provide implications for establishing consumer(citizen)-centeric policies as well as market implications.

A Stakeholder Analysis for Understanding Barriers to Resource Sharing (대학도서관의 자원공유의 장벽에 대한 이해관계자 분석)

  • Shim, Won-Sik
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.21 no.2
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    • pp.129-143
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    • 2010
  • There is a recognition that traditional resource sharing methods such as interlibrary lending and document delivery are now inadequate to meet user needs in the increasingly networked environment. The current study identifies barriers to resource sharing and provides analysis of stakeholders engaged in resource sharing. Focused interviews with six professional librarians were also carried out to seek out deeper understanding of perceptions of barriers among librarians. Results show that the size of the library was not necessarily result in active resource sharing. There was a wide gap among librarians in terms of their attitudinal and organizational orientations towards resource sharing. Barriers specifically identified in the study include the narrowly defined notion among librarians of what constitutes research and the untested fear of swamping where there is an imbalance of collections. Overall, while resource sharing is recognized as an integral part of library services, it seriously lacks funding and staff. The study recommends earnest efforts to build librarians' community to invigorate resource sharing among libraries.

Object-Size and Call-Site Tracing based Shared Memory Allocator for False Sharing Reduction in DSM Systems (분산 공유 메모리 시스템에서 거짓 공유를 줄이는 객체-크기 및 호출지-추적 기반 공유 메모리 할당 기법)

  • Lee, Jong-Woo;Park, Young-Ho;Yoon, Yong-Ik
    • Journal of Digital Contents Society
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    • v.9 no.1
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    • pp.77-86
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    • 2008
  • False sharing is a result of co-location of unrelated data in the same unit of memory coherency, and is one source of unnecessary overhead being of no help to keep the memory coherency in multiprocessor systems. Moreover, the damage caused by false sharing becomes large in proportion to the granularity of memory coherency. To reduce false sharing in page-based DSM systems, it is necessary to allocate unrelated data objects that have different access patterns into the separate shared pages. In this paper we propose sized and call-site tracing-based shared memory allocator, shortly SCSTallocator. SCSTallocator places each data object requested from the different call-sites into the separate shared pages, and at the same time places each data object that has different size into different shared pages. Consequently data objects that have the different call-site and different object size prohibited from being allocated to the same shared page. Our observations show that our SCSTallocator outperforms the existing dynamic shared memory allocators. By combining the two existing allocation technique, we can reduce a considerable amount of false sharing misses.

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An Extensible Architecture for Constructing Open Sharing Service (오픈 공유 서비스 구축을 위한 확장 아키텍쳐)

  • Cho, Eun-Sook;Cha, Young-Bin;Kim, Chul-Jin
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.12
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    • pp.620-627
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    • 2017
  • An open sharing market is a market providing a sharing business. It provides open sharing services handling various products, unlike existing sharing services providing specific products. Sharing under an open sharing market can include all products that are difficult for customers to deal with, and provides fluidity of trade through negotiating sharing periods and costs among sharers. There are many variant elements when you provide sharing services for various products. Therefore, in this paper, we propose an extensible architecture that can reflect the variant elements in open sharing markets. We expect the proposed architecture can continuously improve the extensibility of sharing services for various products, because we design sharing services as components to efficiently manage and provide various sharing services, and provide dynamic binding of variant elements.

An Access Control using Reputation Information in P2P File Sharing System (P2P 파일 공유 시스템에서 평판 정보를 이용한 접근 제어)

  • Shin Jung-Hwa;Shin Weon;Rhee Kyung-Hyune
    • The KIPS Transactions:PartA
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    • v.12A no.6
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    • pp.493-498
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    • 2005
  • P2P service is a method that can share various information through direct connection between computer of a person who have information and a Person who have information without server in the Internet and it is getting a lot of popularity by method for free ex change of file. P2P file sharing systems have become popular as a new paradigm for information exchange. Because all users who use service in P2P file sharing system can use shared files of several users freely by equal access privilege, it is happening the 'free rider' that only download shared file of other users without share own files. Although a user share a malicious file including virus, worm or file that have title differing with actuality contents, can use file sharing service without limitation. In this paper, we propose a method that restrict access of 'free rider' that only download using reputation information that indicate reliability of user. Also, we restrict usage ons hared file of other users about users who share harmful file.

A Study on the Intention and Behavior of Sharing Information in Online World: Focusing on Moderating Effect of Information Importance (온라인상에서 정보공유 의도 및 행동에 미치는 영향에 관한 연구 - 정보 중요성의 조절효과를 중심으로 -)

  • Kim, Gu
    • Informatization Policy
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    • v.20 no.1
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    • pp.22-41
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    • 2013
  • The purpose of this paper is to examine the effect of interpersonal face-to-face offline on identification-based trust and reciprocity norm in online world, and the effect of identification-based trust and reciprocity norm on the intention and behavior of sharing information in online world. To understand the moderating role, the importance of information was established as a moderating variable, and an empirical analysis was conducted, focusing on the undergraduate. The results of this study are as follows. It was found that interpersonal face-to-face in offline world affects identification-based trust and reciprocity norm in online positively. A reciprocity norm of identification-based trust and reciprocity norm in online world affected by interpersonal face-to-face in offline world has a positive effect on the intention and behavior of sharing information in online, but showed that identification-based trust does not affect them significantly. And reciprocity norm has significant relationship with information sharing behavior through the intention to share information. It was found to be a partial moderating effect of importance of information on the relationship among the reciprocity norm and the intention and behavior of sharing information.

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The Effects of the Types of Source-Based Trust on Knowledge Sharing of Public Employees: Based on Officials' Perceptions in Local Government (공공조직 구성원의 신뢰기반에 따른 신뢰유형이 지식공유에 미치는 영향 - 지방공무원의 인식수준을 중심으로 -)

  • Kim, Gu
    • Informatization Policy
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    • v.20 no.4
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    • pp.23-50
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    • 2013
  • The main purpose of this study is to empirically examine and to develop the optimal model about an influential relationship between the types of source-based trust and knowledge sharing of local government officials. Procedural and distributive justice-based calculative trust in organization, cognition-based trust in organization, cognition-based trust in supervisor, cognition-based trust in coworkers, and emotion-based trust in coworkers were set up as independent variables of this research model, and sharing of tacit knowledge and explicit knowledge based on the knowledge content as dependent variables. The research results shows that the suitability of each model has approximate value to the required level, and that emotion-based trust in coworkers significantly affects knowledge sharing for both the individual and integrated factors in hypothetical influential relationship. This study is expected to help to enable knowledge sharing in various situations by dividing the concepts of trust that affect knowledge sharing into a few types, and deriving the influential model of knowledge sharing by types.

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