• Title, Summary, Keyword: Mobile Computing

Search Result 1,677, Processing Time 0.058 seconds

A Comparative Study For Mobile Cloud Computing Environment (모바일 클라우드 컴퓨팅 환경의 비교 연구)

  • Jang, Rae-Young;Jung, Sung-Jae;Bae, Yu-Mi;Sung, Kyung;Soh, Woo-Young
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • /
    • pp.277-280
    • /
    • 2011
  • After the concept of Cloud Computing was first introduced, IT industry had focused on it. The Cloud Computing market is increasing as many major coporations have been participating in it. Now, the possibility of Mobile Cloud Computing has rising. Needless to say, the growth of Mobile Cloud Computing is explosive. Mobile industry changes its operational system from FeaturePhone to SmartPhone which are based on iPhone or Android. The number of Smart phone users in Korea exceeds 10 millions. Through this study, we will examine sorts and acctual situations of available domestic and international Mobile Cloud Computing Services in SmartPhone. Also, we will investigate the problems of current Mobile Cloud Computing and present the solutions.

  • PDF

Intergrating Security Model for Mobile-Grid (Mobile-Grid 환경에서의 통합 보안 모델)

  • Kang, Su-Youen;Lee, Sung-Young
    • Proceedings of the KIEE Conference
    • /
    • /
    • pp.585-588
    • /
    • 2002
  • Grid provides integral ing system that enables to use distributed computing resource and services as adapts traditional infrastructures to overcome the distributed computing environments. But, computing today is moving away from a restriction of the desktop, becoming diffused into our surrounding and onto our personal digital devices. In such mobile computing environments, users expects to access resource and services at any time from anywhere in such Mobile-Grid computing. This expectation results security issues, since the computing environments is expanded. This paper describes the security challenges in Mobile-Grid computing, explaining why traditional security mechanism fail to meet the demands of these environments. This paper describes policy driven security mechanism enabled entity to use service and data in trust Mobile-Grid environments and a set of security service module that need to be realized in the Mobile-Grid security architecture presents a set of use pattern that show hew these modules can be used for billing service in a secure Mobile-Grid environments.

  • PDF

Dynamic Scheduling Method for Cooperative Resource Sharing in Mobile Cloud Computing Environments

  • Kwon, Kyunglag;Park, Hansaem;Jung, Sungwoo;Lee, Jeungmin;Chung, In-Jeong
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.10 no.2
    • /
    • pp.484-503
    • /
    • 2016
  • Mobile cloud computing has recently become a new paradigm for the utilization of a variety of shared mobile resources via wireless network environments. However, due to the inherent characteristics of mobile devices, a limited battery life, and a network access requirement, it is necessary for mobile servers to provide a dynamic approach for managing mobile resources efficiently in mobile cloud computing environments. Since on-demand job requests occur frequently and the number of mobile devices is drastically increased in mobile cloud computing environments, a different mobile resource management method is required to maximize the computational power. In this paper, we therefore propose a cooperative, mobile resource sharing method that considers both the inherent properties and the number of mobile devices in mobile cloud environments. The proposed method is composed of four main components: mobile resource monitor, job handler, resource handler, and results consolidator. In contrast with conventional mobile cloud computing, each mobile device under the proposed method can be either a service consumer or a service provider in the cloud. Even though each device is resource-poor when a job is processed independently, the computational power is dramatically increased under the proposed method, as the devices cooperate simultaneously for a job. Therefore, the mobile computing power throughput is dynamically increased, while the computation time for a given job is reduced. We conduct case-based experiments to validate the proposed method, whereby the feasibility of the method for the purpose of cooperative computation is shown.

Design and Prototyping of Partial Connection Manager for Mobile Computing Service (이동 컴퓨팅 서비스를 위한 부분 연결 관리자의 설계 및 프로토타입핑)

  • Kim, Pyeong-Jung;Yun, Seok-Hwan;Jin, Seong-Il
    • The Transactions of the Korea Information Processing Society
    • /
    • v.7 no.6
    • /
    • pp.1932-1940
    • /
    • 2000
  • We must solve problems caused by mobile computing environments for supporting efficient mobile computing services. The problem is the use of wireless medium having high error rates and low bandwidth, and the sudden network disconnection to reduce the power consumption of a mobile host and the cost of the network connection. For these problems, we proposed the architecture of the partial connection manager and designed and implemented that in this paper. In particular, The partial connection manager creates the limited number of mobile agents according to priority and sends them in parallel to server systems and combines results of them process rapidly the user request. By applying the proposed partial connection manager to the mobile computing services called cybermarket, we knew that the mobile agent technique could be suited to the mobile computing environment and overcome the partial connection problem caused by eh mobile computing environment.

  • PDF

Design and Implementation of a Mobile Runtime Library for Execution of Large-scale Application (대용량 소프트웨어 실행을 위한 모바일 런타임 라이브러리 설계 및 구현)

  • Lee, Ye-In;Lee, Jong-Woo
    • Journal of Korea Multimedia Society
    • /
    • v.13 no.1
    • /
    • pp.1-9
    • /
    • 2010
  • Today's growth of the mobile communication infrastructure made mobile computing systems like cellular phones came next to or surpassed the desktop PCs in popularity due to their mobility. Although the performance of mobile devices is now being improved continuously, it is a current common sense that compute intensive large-scale applications can hardly run on any kind of mobile handset devices. To clear up this problem, we decided to exploit the mobile cluster computing system and surveyed the existing ones first. We found out, however, that most of them are not the actual implementations but a mobile cluster infrastructure proposal or idea suggestions for reliable mobile clustering. To make cell phones participated in cluster computing nodes, in this paper, we propose a redesigned JPVM cluster computing engine and a set of WIPI mobile runtime functions interfacing with it. And we also show the performance evaluation results of real parallel applications running on our Mobile-JPVM cluster computing systems. We find out by the performance evaluation that large-scale applications can sufficiently run on mobile devices such as cellular phones when using our mobile cluster computing engine.

The Impact of Ubiquitous Factors on Intention to Use Mobile Services (유비쿼터스 특성요인이 모바일 서비스의 사용의도에 미치는 영향)

  • Cha, Yoon-Sook;Chung, Moon-Sang
    • The Journal of Information Systems
    • /
    • v.16 no.2
    • /
    • pp.69-91
    • /
    • 2007
  • The mobile computing environment has already matured and mobile services are activated throughout many industries. In the following years, these changes are expected to evolve into a ubiquitous computing environment. In the meantime, whether newly developed information technologies will thrive or diminished depends on user's intention to adopt them. Hence, the necessity of user-centered research considering ubiquitous computing in mobile computing environment is obvious. This study, thus, investigated ubiquitous factors in various literature related to ubiquitous computing and technology acceptance and it proposes a research model of the ubiquitous factors affecting user's intention to use mobile services, in terms of meaning(connectivity, mobility), service(contextual offer), compatibility(compatibility), and infrastructure(privacy, truth). The proposed model is expected to help both researchers and practitioners extend their understanding about the ubiquitous factors in mobile computing environment

  • PDF

A Novel Architecture for Mobile Crowd and Cloud computing for Health care

  • kumar, Rethina;Ganapathy, Gopinath;Kang, Jeong-Jin
    • International Journal of Advanced Culture Technology
    • /
    • v.6 no.4
    • /
    • pp.226-232
    • /
    • 2018
  • The rapid pace of growth in internet usage and rich mobile applications and with the advantage of incredible usage of internet enabled mobile devices the Green Mobile Crowd Computing will be the suitable area to research combining with cloud services architecture. Our proposed Framework will deploy the eHealth among various health care sectors and pave a way to create a Green Mobile Application to provide a better and secured way to access the Products/ Information/ Knowledge, eHealth services, experts / doctors globally. This green mobile crowd computing and cloud architecture for healthcare information systems are expected to lower costs, improve efficiency and reduce error by also providing better consumer care and service with great transparency to the patient universally in the field of medical health information technology. Here we introduced novel architecture to use of cloud services with crowd sourcing.

Mobile Computing Algorithm on IEEE 802.11b for Ubiquitous Computing

  • Kim, Wu-Woan
    • Journal of the Korean Data and Information Science Society
    • /
    • v.19 no.1
    • /
    • pp.11-24
    • /
    • 2008
  • In this paper, the patterns of movement used in the mobile communication systems are adopted in the mobile computing environment to reduce handover delay and to support seamless handover for MIPv6 based on IEEE 802.11 networks. That is, RtSolPr message and PrRtAdv message can be treated before handover. As the result, it is possible to assign NCoA to MN and Next Access Router(NAR) before handover starts. This can minimize handover delay and reduce the total handover delay.

  • PDF

The Patterns of Mobile Internet Service for Post PCs in Ubiquitous Computing (유비쿼터스 컴퓨팅에서 포스트 PC의 모바일 인터넷 서비스 유형)

  • Kim, In-Jai;Shim, Hyoung-Seop;Jung, Min-Ho
    • Journal of Information Technology Services
    • /
    • v.6 no.3
    • /
    • pp.179-193
    • /
    • 2007
  • Mobile Internet Service has been accelerated in ubiquitous computing environment. The purpose of this study is to suggest the patterns of mobile internet services based upon the current and future environments. The types of mobile internet service are explicated on the basis of current and future usage. A two-dimensional framework using level of timeliness and service purpose is utilized for classifying mobile internet service. Future trends of mobile internet service are carefully suggested.

A Study on the Effect of Mobile Cloud Computing Services Characteristics on the Intellectual Convergence and the Performance Expectancy in Construction Project: From the Perspective of the Social Capital (건설프로젝트에서 Mobile-Cloud Computing Service 특성이 정보융합과 기대성과에 미치는 영향에 관한 연구: 사회적 자본의 관점에서)

  • Kim, Youngwoo;Oh, Jay In
    • The Journal of Bigdata
    • /
    • v.4 no.1
    • /
    • pp.129-142
    • /
    • 2019
  • Construction projects have experienced many failures due to incomplete production environments. Thus, the purpose of this study is to use ICT resources leased during the construction period at the construction site and to introduce the Mobile Cloud Computing Service, which utilizes Cloud Computing Service and mobile devices such as smart phones, tablet PCs, and notebooks instead of physically wired communication networks. The characteristics of Mobile Cloud, such as rapid accuracy, shared collaboration, and ubiquity, will affect the social network among various construction site participants. we conducted empirical research on the introduction of Mobile Cloud to promote information exchange and convergence among the participants and mutual trust, ultimately improving the project performance.

  • PDF