• Title, Summary, Keyword: 모바일클라우드

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Response Time Analysis Considering Sensing Data Synchronization in Mobile Cloud Applications (모바일 클라우드 응용에서 센싱 데이터 동기화를 고려한 응답 시간 분석)

  • Min, Hong;Heo, Junyoung
    • The Journal of The Institute of Internet, Broadcasting and Communication
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    • v.15 no.3
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    • pp.137-141
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    • 2015
  • Mobile cloud computing uses cloud service to solve the resource constraint problem of mobile devices. Offloading means that a task executed on the mobile device commits to cloud and many studies related to the energy consumption have been researched. In this paper, we designed a response time model considering sensing data synchronization to estimate the efficiency of the offloading scheme in terms of the response time. The proposed model considers synchronization of required sensing data to improve the accuracy of response time estimation when cloud processes the task requested from a mobile device. We found that the response time is effected by new sensing data generation rate and synchronization period through simulation results.

Synchronization Technique of Mobile Phone using Cloud Service (클라우드 서비스를 이용한 모바일 폰의 동기화 기법)

  • Park, Hung-bog;Seo, Jung-hee
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.927-928
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    • 2016
  • In the past, the way of sharing data in various devices was to use a physical method such as USBs. The radical development of communications technology and the users, who possess various multimedia devices, caused the need for the new way that people could share their data in various devices, and providing various digital resources by using the cloud computing service helps people solve the limit to sharing the resources in their PC. Therefore, this paper is to suggest the technology for synchronization of mobile devices, and the user-centered cloud service is applied to the technology. Having conducted the experiment, it has been discovered that applying the synchronization of mobile devices using the cloud service enabled to conduct the auto file synchronization and to minimize the bandwidth consumed during the synchronization process between two devices.

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Cloud-Based Video Communication System Using WebRTC (WebRTC를 사용한 클라우드 기반의 화상 통신 시스템)

  • Cho, Joonghyun;Lee, Jang Ho
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.1592-1595
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    • 2013
  • 최근 모바일 기기의 급속한 발전 및 보급으로 화상회의 그리고 Google의 Hangouts나 Apple의 FaceTime과 같은 화상 통신의 사용이 증가하고 있다. 그러나 기존의 화상통신 시스템은 사용자 PC나 모바일 단말기의 플랫폼 환경에 맞는 애플리케이션이나 플러그인을 설치해야 하는 단점이 있다. 따라서 본 논문에서는 WebRTC를 사용한 클라우드 기반의 다자간 화상 통신 시스템을 제안한다. 제시된 시스템은 PC나 모바일 단말기에 제약 받지 않고 HTML5를 지원하는 웹 브라우저 만을 이용하여 화상 통신을 제공하며, 화상 통신 서비스 제공자가 별도의 서버 환경을 구축할 필요가 없는 클라우드 기반의 서비스이다.

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Mobile Cloud Service Platform for Supporting Business Tasks (기업 업무 지원을 위한 모바일 클라우드 서비스 플랫폼)

  • You, Dae-Sang;Ko, Kwang-Il;Maeng, Seung-Ryol;Jin, Go-Whan
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.9
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    • pp.2113-2120
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    • 2013
  • As a smart mobile device is gaining popularity as a tool to utilize internet services, the demand on the cloud service (which eliminates the spatial and/or temporal restrictions in enjoying the services) is increasing. This trend also has an effect on the style of performing business tasks so that the concept of 'smart-work' (e.g. doing business tasks in anywhere and anytime) is being spread over the industries. The facilities for the smart-work is, however, focused on providing the tools designed to supporting business tasks such as co-working in writing documents, video conference, searching data via smart (mobile) devices neglecting the industries' needs for the infrastructure by which they can create their own business applications and mobile cloud services at a low (or moderate) price. The paper proposes a mobile cloud service platform, which provides an SDK for developing business applications and offers the applications to smart mobile devices as a PaaS (Platform as a Service).

Significant Factors for Building Enterprise Mobile Cloud (기업용 모바일 클라우드 시스템 구축 시 고려 요인)

  • Lee, Jae-Jin;Oh, Jun-Seok;Lee, Bong-Gyou
    • The KIPS Transactions:PartD
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    • v.18D no.6
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    • pp.481-492
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    • 2011
  • Recently, various mobile services are provided by the spread of wireless network infrastructures and smart devices. The improvement of cloud computing technologies increases the interests for enterprise mobile cloud services in various IT companies as well. By increasing the interests for enterprise mobile cloud services, it is necessary to evaluate the use of enterprise mobile cloud services. Therefore, the factors which affect the user acceptance of enterprise mobile cloud services are analyzed on the basis of Davis' technology acceptance model in this research. As analysis results, four external variables have significant effects on perceived ease of use of mobile cloud services. Also, these variables indirectly affect attitude toward using cloud services. The results show that the security is the most important factor for attitude toward using enterprise mobile cloud services. The service users also consider the interoperability as an important factor for the user acceptance of cloud services. The perceived ease of use has more contribution than the perceive usefulness on attitude toward using enterprise mobile cloud services. This research has both industrial and academic contributions because it provides the guideline to companies for introducing the enterprise mobile cloud services and apply the technology acceptance model on new IT services.

A Study of Factors Affecting Attitude Towards Using Mobile Cloud Service (모바일 클라우드 서비스 이용태도에 영향을 미치는 요인 연구)

  • Kim, Su-Yeon;Lee, Sang Hoon;Hwang, Hyun-Seok
    • Journal of the Korea Industrial Information Systems Research
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    • v.18 no.6
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    • pp.83-94
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    • 2013
  • As smart devices have proliferated and mobile networks have accelerated, various wired IT(Information Technology) services are transplanted in wireless environments. Cloud computing service, enabling individual users or firm users to download data from a server and upload data after manipulating data, is also available in mobile devices. Unlike cloud service in wired network environments, mobile cloud service provides differentiated aspects in mobility, security issues caused by persistent connection to networks. In this paper we aim to analyze the factors affecting the user attitude and their structural relationships towards mobile cloud service use. We extend TAM(Technology Acceptance Model) to consider the characteristics of mobile environments. Research findings, analyzed by SEM(Structural Equation Model), are explained and practical implications are presented with concluding remarks.

A Study on Distributed Processing of Big Data and User Authentication for Human-friendly Robot Service on Smartphone (인간 친화적 로봇 서비스를 위한 대용량 분산 처리 기술 및 사용자 인증에 관한 연구)

  • Choi, Okkyung;Jung, Wooyeol;Lee, Bong Gyou;Moon, Seungbin
    • Journal of Internet Computing and Services
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    • v.15 no.1
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    • pp.55-61
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    • 2014
  • Various human-friendly robot services have been developed and mobile cloud computing is a real time computing service that allows users to rent IT resources what they want over the internet and has become the new-generation computing paradigm of information society. The enterprises and nations are actively underway of the business process using mobile cloud computing and they are aware of need for implementing mobile cloud computing to their business practice, but it has some week points such as authentication services and distributed processing technologies of big data. Sometimes it is difficult to clarify the objective of cloud computing service. In this study, the vulnerability of authentication services on mobile cloud computing is analyzed and mobile cloud computing model is constructed for efficient and safe business process. We will also be able to study how to process and analyze unstructured data in parallel to this model, so that in the future, providing customized information for individuals may be possible using unstructured data.

Design of Security Service Model in Dynamic Cloud Environment (동적 클라우드 환경에 적합한 보안 서비스 모델 설계)

  • Jeong, Yoon-Su
    • Journal of Convergence Society for SMB
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    • v.2 no.2
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    • pp.35-41
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    • 2012
  • The rapid development of cloud computing and mobile internet service changes to an mobile cloud service environment that can serve and pay computing source that users want anywhere and anytime. But when user misses mobile device, the respond to any threat like user's personal information exposal is insufficient. This paper proposes cloud service access control model to provide secure service for mobile cloud users to other level users. The proposed role-based model performs access authority when performs user certification to adapt various access security policy. Also, the proposed model uses user's attribute information and processes before user certification therefore it lowers communication overhead and service delay. As a result, packet certification delay time is increased 3.7% and throughput of certification server is increased 10.5%.

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Preliminary Performance Testing of Geo-spatial Image Parallel Processing in the Mobile Cloud Computing Service (모바일 클라우드 컴퓨팅 서비스를 위한 위성영상 병렬 정보처리 성능 예비실험)

  • Kang, Sang-Goo;Lee, Ki-Won;Kim, Yong-Seung
    • Korean Journal of Remote Sensing
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    • v.28 no.4
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    • pp.467-475
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    • 2012
  • Cloud computing services are known that they have many advantages from the point of view in economic saving, scalability, security, sharing and accessibility. So their applications are extending from simple office systems to the expert system for scientific computing. However, research or computing technology development in the geo-spatial fields including remote sensing applications are the beginning stage. In this work, the previously implemented smartphone app for image processing was first migrated to mobile cloud computing linked to Amazon web services. As well, parallel programming was applied for improving operation performance. Industrial needs and technology development cases in terms of mobile cloud computing services are being increased. Thus, a performance testing on a satellite image processing module was carried out as the main purpose of this study. Types of implementation or services for mobile cloud varies. As the result of this testing study in a given condition, the performance of cloud computing server was higher than that of the single server without cloud service. This work is a preliminary case study for the further linkage approach for mobile cloud and satellite image processing.

A Study on Secure Data Access Control in Mobile Cloud Environment (모바일 클라우드 환경에서 안전한 데이터 접근 제어에 관한 연구)

  • Kim, Si-Jung;Yeo, Sang-Soo
    • Journal of Digital Convergence
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    • v.11 no.2
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    • pp.317-322
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    • 2013
  • Mobile cloud environment is recently becoming popular due to Internet access through various environments. Driven by computer performance improvement and service development, the demand for mobile cloud is increasing and accordingly the damage is on the rise. Therefore, it needs to conduct a study on problems of security necessary in large database that occurs in mobile cloud services. Although various security solutions limiting database access, security strategies about new user environments should be analyzed. This study analyzes weakness of safe data access through database management in mobile cloud environment and examines security requirements for safe data management. In addition, this study looks into threatening factors of security in cloud services and then draws security requirements about safer access control. A study on system application and evaluation of security requirements about access control is required.