Basic of Mobile Communication

1. DR.R.SUGANYA
HEAD & ASSISTANT PROFESSOR
DEPARTMENT OF INFORMATION TECHNOLOGY
BON SECOURS COLLEGE FOR WOMEN.
THANJAVUR

2. MOBILE COMMUNICATION
•Mobile Communication specifies a framework that is
responsible for the working of mobile computing technology.
•In this case, mobile communication refers to an infrastructure
that ensures seamless and
reliable communication among wireless devices.

3. MOBILE COMMUNICATION
•Mobile Communication specifies a framework that is responsible for the
working of mobile computing technology.
•In this case, mobile communication refers to an infrastructure that ensures
seamless reliable communication among wireless devices.

5. MOBILE COMPUTING
• Mobile computing is human–computer interaction in which a
computer is expected to be transported during normal usage, which
allows for the transmission of data, voice, and video.
• Mobile computing involves mobile communication, mobile hardware,
and mobile software

6. MOBILE COMPUTING ARCHITECTURE
• The network-centric mobile computing architecture uses three-tier
architecture
• 1) Presentation Tiers
• 2) Application Tiers
• 3) Data Tier.
• In three tier architecture, the first layer is User Interface or
Presentation Tier. This layer deal with user facing device handling and
rendering.

7. characteristics of mobile computing
architecture
Each tier is distributed to a different place or places in a network. These tiers
do not necessarily correspond to physical locations on various computers on a
network, but rather to logical layers of the application.
1. Presentation Layer (UI):
• This layer presents data to the user and optionally permits data manipulation and
data entry, also this layer requests the data form Business layer.
• This layer accomplished through use of Dynamic HTML and client-side data
sources and data cursors.

8. 2. Business Logic Layer:
The business logic acts as the server for client requests from workstations.
• It acts according Business rules fetch or insert data through the Data
Layer.In turn, it determines what data is needed (and where it is located)
and acts as a client in relation to a third tier of programming that might be
located on a local or mainframe computer.
• Because these middle-tier components are not tied to a specific client, they
can be used by all applications and can be moved to different locations, as
response time and other rules require.

9. • 3. Data Access Layer:
• The third tier of the 3-tier system is made up of the DBMS that
provides all the data for the above two layers.
• This is the actual DBMS access layer.
• Avoiding dependencies on the storage mechanisms allows for updates
or changes without the application tier clients being affected by or
even aware of the change.

10. Mobile Device
• Mobile computing is a generic term that refers to a variety of devices that
allow people to access data and information from wherever they are. Mobile
computing transports data, voice, and video over a network via a mobile
device. ... Mobile phone services also provide mobile computing through
their service plans.
• Some of the most common mobile devices we use today include:
• Smartphones.
• Tablets.
• Laptop computers.
• Smart watches.
• E-readers.
• Handheld gaming consoles.

12. Mobile System Networks
•Mobile network is a communication network where the last link is
wireless.
•The network is distributed over land areas called "cells", each served
by at least one fixed- location transceiver, but more normally, three cell
sites or base transceiver stations.

13. DATA DISSEMINATION
• The data dissemination is a method of distributing or transmitting the
statistical or another type of data to the end-users.
• Mobile devices receive output data. ... A mobile device can select, tune
and cache the required data items, which can be used for application
programs.

14. Mobile Management
• Mobility management is a functionality that facilitates mobile device operations in
Universal Mobile Telecommunications System (UMTS) or Global System for
Mobile Communications (GSM) networks.
• The location update procedure allows a mobile device to notify a cellular network
when shifting between areas. When a mobile device recognizes that an area code
differs from a previous update, the mobile device executes a location update, by
sending a location request to its network, prior location and specific Temporary
Mobile Subscriber Identity (TMSI).
• A mobile device provides updated network location information for several
reasons, including reselecting cell location coverage due to a faded signal.

15. SECURITY
• You must ensure that anti-virus software is installed on mobile devices. Make sure
that the firewall client is installed on mobile devices.
• Make your mobile devices encrypted with a strong password. Encrypt your data
stored in the secondary storage devices such as Memory Sticks, Data card,
removable USB etc.

16. UNIT-II
MOBILE DEVICE AND SYSTEMS

17. MOBILE PHONES
• A mobile device is a general term for any type of handheld computer. These
devices are designed to be extremely portable, and they can often fit in your hand.
• Some mobile devices—like tablets, e-readers, and smartphones—are powerful
enough to do many of the same things you can do with a desktop or laptop
computer.

18. DIGITAL MUSIC PLAYER
Hardware or software that plays audio files encoded in MP3 and other audio
formats. On the software side, applications that reside in the user’s computer, such as
iTunes, Windows Media Player and RealPlayer, are used to organize a music collection,
play audio files and rip music from a CD.
 IXI.
 AT&T FlashPAC.
 SaeHan/Eiger MPMan.
The Audible Player.
Diamond Rio.
HanGo Personal Jukebox.
Sony Walkman.
 Samsung YEP

19. Handheld packet computers
• A handheld packet computers or handheld pc is a computer built around a form
factor which is significantly smaller than any standard laptop computer.
• It is sometimes referred to as a palmtop computer. Most handheld PCs use an
operating system specifically designed for mobile use such as Microsoft's
Windows

20. HAND HELD DEVICE WITH
OPERATING SYSTEMS
• Web browsing and e-mail are also possible using handheld devices. For example,
Pocket PCs are supplied with Pocket Internet Explorer.
• The two most widely used OSs for handheld devices are Palm OS and Microsoft‟s
Windows Mobile suite of OSs.

21. SMART SYSTEMS
• Smart systems incorporate functions of sensing, actuation, and control in order to
describe and analyze a situation.
• And make decisions based on the available data in a predictive or adaptive
manner, thereby performing smart actions.

22. LIMITATION OF MOBILE DEVICE
Limitations When Designing For Mobile
1) No Hover State. “Pull down to refresh” is a fairly common feature in native apps,
and a few web apps have implemented it too. ...
2) Slow and Error-Prone Typing. ...
3) Less Context. ...
4) Inaccurate Clicks. ...
5) Poor Connectivity. ...
6) Slow Hardware. ...
7) Usage Situation.

23. AUTOMOTIVE SYSTEMS
• The Engine – including lubrication and cooling. The Fuel System – including
evaporative emission.
• The Electrical System – including starting and charging. The Exhaust System –
including emission control.

24. THANK YOU