MOBILE COMPUTING

SUBMITTED BYK.TEJYA PRANTHIII-B.Tech SEM-IICSE-BROLL NO:-13701A05A0

CONTENTS:-• Introduction

• Existing Cellular Network architecture

• Data Communications

• CDPD technology

• CDPD Network Reliability

• Applications of Mobile Computing

• Limitations

• The Future

• Conclusion

• References

INTRODUCTION:-

• Mobile computing is a generic term describing your ability to use technology to wirelessly connect to and use centrally located information.

Existing Cellular Network architecture

• Mobile telephony took

off with the introduction

of cellular technology

which allowed the efficient

utilisation of frequencies

enabling the connection

of a large number of users.

F

• Circuit switching

• Packet switching

CDPD TECHNOLOGY:-

• Today, the mobile data

communications market

is becoming dominated by

a technology called CDPD.

• CDPD's principle lies in the usage of the idle time in between existing voice signals that are being sent across the cellular networks.

The hierarchy consists of the following levels : -

1.Mobile end user

interface:

• The mobile end user

can transmit both

data & voice signals

2.Mobile Data Base Station(MDBS)

• MDBS is responsible for

detection of Idle time in

voice channels.

• Connected to

the mobile end user.

3.Mobile Data Intermediate Systems(MDIS)

• These MDIS use a Mobile

Network Location Protocol

(MNLP) to exchange

location information

about Mobile end users

within their domain.

• MDBS is connected to the

MDIS.

Eg:-

4.INTERMEDISTE SYSTEM

• MDIS are interconnected to

these IS which form the

backbone of the

CDPD system.

Eg:-

CPCD NETWORK

CDPD NETWORK RELIABILITY:-

• User authentication

• User anonymity

• Fraud prevention

• Protection of user data

APPILICATIONS:-

• For estate agents

• Emergency services

Police Incident Information

Screen

• Credit card verification

• Taxi/Truck dispatch

• Electronic mail/paging

LIMITATIONS:-

• Power consumption

• Transmission interfaces

• Human interface with device

• Potential health hazards

FUTURE OF MOBILE COMPUTING:-

• Mobile computing field is rapidly growing day by day. And the technologies used in mobile computing is increasing rapidly. In future we will see many amazing products of mobile computing technology

HUMAN SENCES IN COMPUTERS

CONCLUSION:-

• Being an ever growing and emerging technology, mobile computing will continue to be a core service in computing and Information Communication and Technology.

REFERENCES:-

• Andersson, A and Hofsten, CV (1999) Readability of vertically vibrating aircraft displays. Displays, 20: 23-26.

• Juola, JF, Tiritoglu, A and Pleunis, J (1995) Reading text presented on a small display. Applied Ergonomics, 26: 227-229.