This document summarizes mobile cloud computing. It defines mobile cloud computing as combining cloud computing, mobile computing, and wireless networks to provide rich computational resources to mobile users. It describes the advantages of mobile cloud computing in providing data storage, processing, and access from anywhere. It outlines the basic architecture and discusses hierarchical architectures using "cloudlets" to improve performance. It also discusses issues like limited mobile devices and connection quality, and proposes solutions like optimizing application distribution and developing network infrastructure around cloudlets.

1. MOBILE
CLOUD COMPUTING
Submitted By:
Chandu M
6th Semester
Information Science and
Engineering

2. OBJECTIVES
• What is Mobile Cloud Computing
• Why Mobile Cloud Computing
• Different types of Cloud Services
• A simple Architecture of Mobile Cloud
• Architecture of hierarchically Structured Mobile Computing Cloud
• Advantages of Using Mobile Cloud
• Problems Occurring in Mobile Cloud Computing
• Solutions
• Conclusion

3. What is Mobile Cloud Computing
• Mobile Cloud Computing (MCC) is the combination of
cloud computing, mobile computing and wireless
networks to bring rich computational resources to mobile
users, network operators, as well as cloud computing
providers.

4. Why mobile Cloud Computing?
• Mobile cloud computing provides mobile user with data
storage and processing services in cloud.
• Cloud Computing (CC) technologies have been widely used
recently and offer virtual computing and memory resources,
platform and software using cheap server and network
resources. Cheap and accessible computing clouds incite
wide use of mobile application.
• We can access information in the cloud at anytime and from
anyplace.

5. Different types of Cloud Services
Figure 1.0

6. • Infrastructure as a Service(IaaS) service allows users to use computing and
memory resources (for example, Amazon Elastic Cloud Computing - EC2 and Amazon
S3 - Simple Storage Service) of the cloud system.
• Platform as a Service(PaaS) service is a platform allowing users to use operation
systems and special applications (Google App Engine, Microsoft Azure, My SQL etc.)
located on virtual servers.
• Software as a Service(SaaS) service allows users to solve their issues using
software located in the computing cloud servers (Google Apps, Google Docs,
Autodesk) and applications.
In the SaaS service, the user can obtain results by launching the software from
computing cloud servers using internet service, without loading the resident portion of
the necessary software to his/her own computer. Applications operate on servers
provided by SaaS.

7. A Simple Architecture Of Mobile Cloud Computing
Figure 2.0

8. Mobile Computing Cloud Architecture, system consists of several
components: mobile users (mobile device, smartphone etc.), mobile
connection operators, wireless connection devices (Wi-Fi access point),
internet provider (ISP), and computing cloud providers (Amazon IBM, Google,
Microsoft etc.).
• as seen on the Figure 2.0,
mobile users connect to Cloud Computing over internet using base stations
(Mobile connection, Wi-Fi Access Point) such connections cause high load of
the networks and delays in provision of processed information.
At the same, these services are expensive. Hierarchically structured Cloud
Computing systems are used in order to eliminate mentioned problem.

9. Architecture of hierarchically Structured Mobile Computing Cloud
Figure 2.1

10. • As seen on the Figure 2.1 diagram, mobile internet users load the necessary
applications to the nearest cloudlet system server and use them; this frees the
internet network from overloading. This architecture improves some mentioned
parameter indicators, although partially.
• Hierarchically structured architecture locates Cloud Computing system servers on
a high level; Cloudlets are located on the base stations on the 2nd level.
Identification of the base stations for Cloudlet placement and their
characterizations are among relevant issues.
• Thus, mobile servers (Cloudlets) beside base stations of mobile operators are
developed for more vast use of cloud technologies by mobile equipment
• Cloudlets (small computing clouds) are devices (server) located close to the users
and provide faster delivery of necessary information to the users from the central
servers

11. What are the Advantages in Using Mobile Cloud
• increasing battery life of mobile devices.
• increasing computing and memory resources of mobile devices.
• storage of user data on several back-up computers increases reliability, which in its turn
reduces information loss risk on mobile devices.
• Dynamic distribution of resources. This provides timely provision of necessary resources to
the user without prior ordering.
• increases network bandwidth.
• Service charge costs less.
• organizing the storage of user data on clouds enables to use this information from any place
worldwide.
• increased scaling , System meets the computing and storage demands of the user for a short-
term due to flexible resource capability.

12. Problems Occurring In Mobile Computing Cloud and Their
Solutions
One of the main problems of mobile computing clouds results from the characteristics of
mobile software and wireless network and their resource capability limitations.
Mobile device limitations: Resource limitation must be considered foremost while reviewing mobile
devices in cloud environment. Despite processing and memory resources of mobile devices, screen size,
wireless communication, sensor technology and operation systems are significantly improved, there are
important problems in use of energy source and exploitation of complex applications.
Connection quality: Unlike wired networks using physical connection tools providing stable coverage
area, information transmission environment in mobile cloud computing environment continuously changes.
Besides, usually data centre's of large companies and resources of internet providers are located very far
from end users, especially mobile device users, which cause problems in obtaining results fast.
Division of applications: Due to limited resource issues, mobile devices cannot use software that do not
require large computing and memory resources or consumption of large amounts of energy is required
during use of these types of software. For this reason, software pieces are divided in several parts and use
resources of mobile computing clouds. Main computing part of the software is processed by the cloud.

13. Solutions
• Cloudlets must be located in zones near to the users in order to reduce the delay period on mobile
computing clouds.
• Optimization of location of main and auxiliary parts of application on the cloud and mobile
devices.
• Development of network infrastructure based on Cloudlets.
• Clusterization of Cloudlets based on services (İaaS, PaaS, SaaS etc.) used on them
• Using mobile cloud computing systems with hierarchic architecture.
• Identification of technical capabilities of computing and memory resources of the Cloudlets.

14. CONCLUSION
This topic analyses mobile computing cloud architecture, their
application areas and advantages of hierarchically structured system
And the Problems occurring during the use of mobile computing
clouds are studied and solution methods are indicated. Necessary
conditions for placement of mobile computing cloud cloudlets are
investigated.

15. Thank You