• Journal of the Korean Data and Information Science Society
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• 제24권1호
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• pp.23-32
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• 2013

The object of study is to compare the response times between WiBro and wired internet in terms of users. We conducted experiments using six portal sites such as Naver, Daum, Google, Paran, Nate, and Yahoo. Because we could not receive all signal levels of WiBro at the same palace, we compared WiBro levels 1~3 and wired internet. We verified wired internet is significantly the fastest among wired internet and than WiBro levels 1~3. We could not find which level is the fastest among WiBro levels 1~3. On average, wired internet is faster than WiBro level 1, 2 and 3 about 5.05, 4.20, and 4.14 times, respectively. In addition to comparing WiBro levels 4~5 and wired internet, more researches on accelerating the response times are needed.

• Journal of Korean Society for Quality Management
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• 제32권2호
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• pp.15-23
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• 2004

This study investigates the customer satisfaction based on the various levels of many factors such as age, sex, period, motive, preference between wired and mobile service, frequency, and time. Customer satisfaction is measured by 13 dimensions. MANOVA reveals that preference between wired and mobile commerce service, mobile service frequency, mobile e-mail service frequency, wired Internet usage frequency, and mobile Internet usage time have a significant effect on the overall satisfaction. Transmission speed, fare, and ease of operation of mobile Internet service turn out to be improved for better customer satisfaction, the IMT-2000 service in particular.

• Proceedings of the Korea Society of Design Studies Conference
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• 한국디자인학회 2005년도 춘계 학술발표대회 논문집
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• pp.86-87
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• 2005

• Management Science and Financial Engineering
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• 제13권2호
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• pp.79-97
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• 2007

This paper investigates the relationship of service quality and user satisfaction in the wired and mobile Internet services based on the integrative framework of both systems. Given a moderate level of reliability and validity, the commonly driven dimensions for measuring service quality include responsiveness, assurance, empathy, convenience, usefulness, and diversity. User satisfaction is measurable by the dimensions of communication/entertainment, finance/economics, location/geography, and information/consulting. We apply the MANOVA tests to evaluate whether each of the service quality dimensions has an overall influence on user satisfaction. Next, multiple regression analyses are conducted to check if unique positive effect exists between each combination of service quality dimensions and user satisfaction dimensions. The results show that service quality must be taken care of with respect to the assurance dimension in order to enhance customer satisfaction in the dimensions of location/geography, which will contribute to increasing the utilization of mobile service. For improving user satisfaction in the dimension of information/consulting, service quality must be supported with respect to assurance and empathy in the mobile Internet market, in addition to diversity, which is the only significant service quality in the wired Internet service.

• Journal of the Korea Institute of Information and Communication Engineering
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• 제9권8호
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• pp.1821-1827
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• 2005

Currently, most wired Internet describes an image file using GIF and JPG and wireless Internet uses various image files such as SVG, wBMP, SIS, PNG, and Flash Lite. Accordingly, overlapping occurs in the investment of production cost for making contents. This thesis proposes a Character(Avatar) service that could simultaneously aid both wired and wireless Internet by utilizing SVG, a vector based image file format for describing two-dimensional graphics. We will reduce cost of developing contents, when develop contents that simultaneously supports wired and wireless Internet using SVG.

• Proceedings of the IEEK Conference
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• 대한전자공학회 2001년도 하계종합학술대회 논문집(3)
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• pp.209-212
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• 2001

In this paper, an intelligent notification system has been presented. The system operates on both wired and wireless internet. When a new message has been uploaded in a bulletin board systems(BBS) on HTTP web server, it sends the same message to their cellular phones of all members of a given group at the same time via SMS(Short Message Service). In addition, on reading SMS message, those who read them respond to a WAP server using pulling technique via wireless internet. Therefore, the HTTP server does know the members who did not read the message yet. Two different web servers, the HTTP server and the WAP server, running on a single system has been implemented. They share the single database which covers al1 related information about the BBS. The set of experiments shows that the notification system works well as we have expected Thus, we conclude that the proposed system that operates on both wired and wireless internet is the one of successful model for such environments.

• Proceedings of the IEEK Conference
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• 대한전자공학회 2003년도 하계종합학술대회 논문집 I
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• pp.577-580
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• 2003

최근 차세대통합네트워크(NGN), ALL-IP 망 진화 방향과 함께 동기식과 비동기식 IMT-2000 망의 통합(Convergence) 또는 연동(Harmonization)에 관한 연구가 활발히 이뤄지고 있으며, 이동통신 망의 개방화에 대한 분위기가 점차 무르익어 가고 있다. 이러한 추세에 UMTS, cdma2000, WLAN 과 같은 서로 다른 방식의 무선 액세스 망으로부터 요구되는 무선인터넷 접속 요구를 하나의 통로로 연결하고 수용할 수 있는 모바일 액세스 통합 게이트웨이가 필요하다. 본 논문에서는 차세대 네트워크 발전 방향과 이동통신 망 개방의 흐름에 맞추어 동기식 망과 비동기식 IMT-2000 망에서 동시에 무선인터넷 서비스 접속을 제공하는 통합 게이트웨이 시스템(A-MiDAS)을 개발하기 위한 형상 설계 방법과 시스템 개발 시 고려사항 등에 대해서 기술한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• 제14권12호
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• pp.6469-6477
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• 2013

As the Internet has grown, energy consumption and GHG emission from internet use have become issues in recent years. On the other hand, such interest in greening the Internet has focused on edge devices, and there is a lack of deeper related studies of the energy wasted by excessive network-connectivity and the savings potential in wired network equipment. This study presents the background and reasonability of studies on the energy efficiency of wired networks in terms of the environment, economy and energy resources. The energy consumption and savings potential of network equipment were also estimated and the major factors of energy consumption was analyzed based on the data, and future studies for the Internet are presented.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• 제9권4호
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• pp.153-159
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• 2009

In this paper, we deal with the coordinate estimate algorithm of the wired tablet device. In order to got the position of the electric pen on the tablet, electromagnetic induction effect is used. Most electric tablets have used the electromagnetic induction effect. Tracking the position of the pen on a tablet that is directly related with the performance of the device is very important. In this research, a new real time coordinate estimate algorithm is introduced. To estimate the position of the pen, the electromagnetic induced signals og the wired tablet are used.

• The KIPS Transactions:PartC
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• 제9C권5호
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• pp.687-698
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• 2002

Together with the activation of wireless Internet, the interest for various integrated methods of the existing wired and wireless e-commerces is on the rise. For the integrated wired and wireless e-commerce, firstly, the optimized security and authentication under the radio communication environment should be decided. And also the user-friendly usage is important. In this paper, we designed and implemented wired and wireless interworking Mobile Wallet on terminal that can be used through both wired and wireless methods by developing electronic wallet module for electronic payment using MIDP (Mobile Information Device Profile) based on J2ME (Java 2 Micro Edition). The characteristics of mobile wallet implemented in this paper provide the stability through encoding/decoding payment information and on-line usage on wired/wireless environments through downloading electronic wallet. In addition, we also present safe and convenient payment method for e-commerce based on wired/wireless Internet.