CONTENTS Introduction

Mobile Computing

Cloud computing

Mobile Cloud Computing

Concept

Architecture

Challenges and solution

Limitations of mobile devices

Quality of communication

Division of application services

Application

Conclusion

INTRODUCTION

• Increased capability of mobile devices

• Accessing internet using mobile devices.

• Growth in emerging mobile devices and in cloud computing has lead to a new field called mobile cloud computing.

MOBILE COMPUTING

• Mobile Computing is a technology that allows transmission of data, via a computer, without having to be connected to a fixed physical link.

• Mobile computing is based on a three concepts: i. Hardware - mobile devices

ii. software - mobile applications and

iii. Communication-infrastructure of mobile networks, protocols and data delivery.

CLOUD COMPUTING

• cloud computing is storing and accessing data and programs over the Internet instead in computer's hard drive.

• The cloud is just a metaphor for the Internet.

• Accessing of data is fast and easy.

MOBILE COULD COMPUTING

• The mobile cloud computing is a development of mobile computing and an extension to cloud computing.

• The mobile device based computing, data storage and mass information processing have been transferred to ’cloud’ .

• Thus the requirements of mobile devices in computing have been reduced.

• Cloud services are suitable for mobile devices like smartphone, PDA, Tablet, and iPad.

• Even non-smartphones can achieve mobile cloud computing.

CONCEPT

• Those mobile devices connects with a hotspot or base station by 3G, WIFI, or GPRS.

• Mobile users send service requests to the cloud through a web browser or desktop application.

• Then the management component of cloud allocates resources to the request to establish connection.

• Major data processing is migrated to ’cloud’ thus the capability requirement of mobile devices is limited.

ARCHITECTURE

CHALLENGES AND SOLUTIONS

• In mobile cloud computing environment, there are some important factors that affect assessing from cloud computing. They are:

OVERVIEW OF CHALLENGES AND SOLUTIONS

Challenges Solutions

Limitations of mobile devices Virtualization and Image,

Task migration

Quality of communication Bandwidth upgrading,

Data delivery time reducing

Division of applications services Elastic application division

mechanism

LIMITATIONS OF MOBILE DEVICES

• serious limiations:limited computing capabilityenergy resources

• Decreased processing capacity, memory, storage.• Battery technology should be improved in a short

time.• The increased computing ability and screen

technology - more complicated applications.• The processing capacity, storage, battery time,

and communication will improve mobile computing.• Solution: Virtualization and image task migration.

QUALITY OF COMMUNICATION

• The data transfer rate in MCC is changing .• Connection is discontinuous due to network

overlay.• In wireless network, the network latency delay is

200 ms .• Mobility of users and weather will lead to changes

in network overlay.• The handover delay in mobile network is higher

than in wired network.• Solution: Bandwidth upgrading , Data delivery

time reducing

DIVISION OF APPLICATON SERVICES

• Due to limited resources ,some applications cannot be used as they may consume massive energy.

• The core computing task is processed by cloud ,the mobile devices are responsible for some simple tasks only.(divide the application)

• The issues affecting performance of MCC: —data processing in mobile device, —network handover delay—data delivery time.

• To over come it the following are needed: ―optimal division of application ―high-bandwidth ―self-adaptation mechanism

• Solution: Elastic application division mechanisim

APPLICATIONS

• Mobile Commerce:» allows business models for commerce using mobile devices.» Examples: Mobile financial, mobile advertising, mobile shopping

• Mobile Learning:» M-learning combines e-learning and mobility.» Traditional m-learning has limitations on high cost of devices,

low transmission rate, limited educational resources.• Mobile Healthcare:

» M-healthcare offers hospitals and healthcare organizations a variety of on-demand services on clouds.

• Mobile Gaming:» M-game is a high potential market generating revenues for

service providers.• Other applications:

» Sharing photos/videos» Keyword-based, voice-based, tag-based searching» Monitoring a house, smart home systems

Conclusion

• Gives the high mobility and scalability.

• Became a research topic in recent years.

• Mobile cloud computing is a highly promising trend for the future of mobile computing.

• According to a recent study by ABI Research, more than 240 million business will use cloud services through mobile devices by 2015

REFERENCES

• Le Guan, Xu Ke, Meina Song, and Junde Song, “A Survey of

Research on Mobile Cloud Computing”, IEEE/ACIS 10th

International Conference on Computer and Information

Science (ICIS), 2010, pp. 387-392.

• Xiaopeng Fan, Jiannong Cao, and Haixia Mao. “A Survey of

Mobile Cloud Computing,” ZTE Communications, 9(1):4-8,

Mar 2011.

• http://www.csie.ndhu.edu.tw/~showyang/MCloud2012/04Mobi

leCloudSurvey.pdf

• Chetan S., Gautam Kumar, K. Dinesh, Mathew K. and

Abhimanyu M.A., “Cloud Computing for Mobile World,” 2010.

(http://chetan.ueuo.com/projects/CCMW.pdf)