Mobile Computing

ON

PRESENTED BY MISS. SONAM.G.RATHI (Email id : [email protected]) & MISS. SNEHAL.E.RAJAS (Email id : [email protected])

Department Of Information Technology Prof. Ram Meghe Institute of Technology & Research,Badnera 2008-09

ABSTRACT

Mobile Computing is a term describes

Mobile computing involves connection with

technologies that enable the users to access the

the network and data processing. Using phones

network from any place at any time. Ubiquitous

from anywhere in the world is not mobile

computing

are

computing because there is no data processing

synonymous with mobile computing. The need

involved. Using a laptop while moving is not

to

mobile computing if there is no connection to a

access

and

the

nomadic

network

computing

without

location

constraints. Mobile computing is a computing

network. Mobile

Computing

paradigm that allows users to access the network

applications

various

not only from fixed locations, but also while

commercial, medical, defense, networking and

moving

computing

electronic devices etc. This article explains how

technology is improving and becoming more

this technology could be implemented, and what

feasible.

uses it could serve.

or

in

transit.

Mobile

CONTENTS

in

comprises of

fields

such

as

Page No. 1.

INTRODUCTION

2.

MOBILE LAB COMPUTING EQUIPMENTS 2 I. EQUIPMENTS II.INSTRUCTOR’S STATION III.SUPPLEMENTRY COMPONENTS

3.

MOBILE COMPUTING IN HEALTH CARE 3 I. Point-of-Care SOLUTIONS FOR DISTRIBUTED WORLD OF HEALTHCARE II.MOBILE APPLICATIONS FOR “Patient Centric” COMPUTING.

4.

GSM 5 I. PERFORMANCE CHARCTERSTICS OF GSM II.GSM : MOBILE SERVICES I. DESIGN GOALS II.CHARACTERSTICS III.AD HOC NETWORKING

6.

TECNICAL AND OTHER LIMITATIONS OF MOBILE COMPUTING 8

7.

FUTURE WORK 9

1

8.

CONCLUSION 9

9.

REFERENCE 10

1. INTRODUCTION

Mobile Computing is a term describes

from anywhere in the world is not mobile

technologies that enable the users to access the

computing because there is no data processing

network from any place at any time. The need to

involved. Using a laptop while moving is not

access the network without location constraints.

mobile computing if there is no connection to a

Mobile computing is a computing paradigm that

network. Mobile

Computing

allows users to access the network not only from

applications

various

fixed locations, but also while moving or in

commercial, medical, defense, networking and

transit.

Mobile computing technology is

electronic devices etc. This article explains how

improving and becoming more feasible due to its

this technology could be implemented, and what

property of mobility.

uses it could serve.

Mobile computing involves connection with the network and data processing. Using phones

in

comprises of

fields

such

as

Page No.1

1. MOBILE EQUIPMENT COMPUTING LAB Airport wireless technology delivers fast, reliable

communications

between

technology and mobile computing as it has

multiple

created a more productive environment for

computers and the Internet. Airport enables

instructors and for students. The possibilities are

several users to be online at the same time

endless.

simultaneously surfing different web sites, accessing e-mail and swapping files through a single Internet connection. Thanks to wireless

1) EQUIPMENT •

Airport Hub

The Airport Hub, included with the Mobile Lab,

performed from the Instructor's Station as well as

allows users to connect to the Internet and to

the ten iBooks that come with the Mobile Lab.

execute print jobs wirelessly. These tasks can be

2) INSTRUCTOR’S STATION •

G3 PowerBook

The mobile lab comes equipped with a G3

PowerBook

that

is

used

as the

software, and displaying a variety of resources

instructor’s laptop. This is a powerful laptop that

can

be

presentations,

used web

for

multimedia

surfing,

educational

. Page No.2

•

Projector

The Instructors G3 PowerBooks also has the ability to project multimedia using

the

Epson

PowerLite

3)

5550C

Multimedia Projector.

4) SUPPLEMENTRY COMPONENTS

• USB Zip Drives and floppy Drive There are 100mb USB Zip Drives available for checkout with the mobile lab.

These can be very beneficial for storing larger files that won’t fit on a std. Imation USB floppy drives can be used for storing small files to

regular floppy disks. These floppy drives can be shared between students by simply disconnecting the floppy drive .

Page No.3 2 MOBILE COMPUTING IN HEALTH CARE 1) Point-of-Care SOLUTIONS FOR DISTRIBUTED WORLD OF HEALTHCARE

As the healthcare industry continues to become

more

distributed,

healthcare

disparate

systems

used

in

healthcare

organizations to communicate with one another,

organizations are increasingly relying on mobile

greatly

reducing

the

links to access patient information and to update

Healthcare professionals are able to access

their master database at the point-of-care. New

critical patient information and billing data from

technologies including handheld, wireless and

anywhere – including community clinics, patient

Internet solutions are enabling the widely

homes, or at the scene of an emergency.

a) LOOKING FOR THE SOLUTION AT POINT-OF-CARE

cost

of

integration.

The popularity of mobile

accuracy of patient data via mobile and wireless

computing is exploding, revolutionizing the way

information solutions to give them an edge in

healthcare organizations operate. Pressured by

this competitive market.

the need to improve quality of care, reduce costs, integrate information systems, and improve the

b) MOBILE & WIRELESS SOLUTIONS

Mobile point-of-care applications offer tremendous potential for today’s healthcare industry. Most significantly, they enable healthcare providers to deliver service when and where it is needed, also provides timely and secure access to all the critical information required as well as instantly update patient records at the bedside to ensure that data properly reflects the most current information. These solutions help eliminate medical errors, save personnel time, data entry costs and enter diagnosis information during patient visits and consult drug formularies, all without the need for a wired network connection. Since healthcare organizations need to compete on quality while watching their costs, the benefits of mobile and wireless computing are significant. Mobile computing at the point-of-care is the catalyst behind these concrete benefits.

Page No.4 2) MOBILE APPLICATIONS FOR “Patient Centric” COMPUTING.

Applications using mobile computing

technology,

includes

bedside

information. Caregivers can also enter patient information into wireless or palm devices.

computing and home healthcare, e-Prescribing

Using handheld devices for e-

and results reporting, and intelligent devices.

Prescribing and results reporting add a new

First, with bedside treatment, doctors on their

dimension to point of-care service delivery.

hospital

Innovative handheld applications can eliminate

rounds

using

mobile

computing

solutions have access to the most current patient

many

paper

based

processes,

such

as

prescription writing, submitting and tracking lab

orders, reporting results, and monitoring drug

Mobile

computing

administration to patients. Portable devices used

solutions enable application developers to create

for diagnostics, patient-monitoring systems such

complete information management systems for

as kidney dialysis machines, and delivery

caregivers. These systems reduce costs by

systems such as those used in aesthesiadelivery

speeding the distribution and collection of data at

are all examples of intelligent devices that

the point-of-care, eliminating paperwork, and

capture vital information at the point-of-care.

automating workflow. hese solutions also supply

The ability to capture data on the device and

timely, valuable information to the mobile

integrate results with the patient’s record

caregiver, who is able to make better treatment

eliminates the need for paper-based results.

decisions for the patient.

3) GSM

Formerly: Group Special Mobile .Now: Global System for Mobile Communication is used all over the world use GSM.

Page No.5 I.

•

Performance characteristics of GSM

Communication(mobile,

wireless

• worldwide connectivity (one number, the

communication; support for voice and data

network handles localization)

services)

• High capacity (better frequency efficiency,

• Total mobility (international access, chip-card

smaller cells, more customers per cell)

enables accessing points of different providers)

• High transmission quality (high audio quality and reliability for wireless, uninterrupted phone

calls

at

higher

speeds

(e.g.,

from

cars,

trains)Security

functions

(access

control,

authentication via chip-card and PIN)

I. GSM: Mobile Services

• GSM offers (several types of connections:

Telemetric

voice connections, data connections, short

services that enable voice communication

message

service

multi-service

options

Services

-

Telecommunication

via mobile phones(e.g. mobile telephony offers

(combination of basic services)

bandwidth of 3.1k

• Two service domains

Additional teleservices are

Bearer Services - Telecommunication services to

char),voice mailbox, electronics mail.

sms(upto 160

transfer data between access points

hz)

Fig g : Service Domains

Page No.6 4) WIRELESS LAN

Wireless LAN hardware uses antennas

to be sent at 2 Mbps and also use sharing. This

instead of cable to broadcast RF signals through

summarizes that

computers participating in a

the air, which others computers receive. The

given wireless LAN are configured to the same

devices use 900 MHz frequencies to permit data

radio frequency.

I.

II.Design Goals

• Global, seamless operation • Low power consumption for battery use • No special permissions or licenses required • Easy to use for everyone, simple management • Interoperable with wired networks • Security & Privacy (no one should be able to read my data & collect user profiles), safety. • Robust transmission technology.

III.

IV.Characteristics

• •

Very flexible (economical to scale)

•

Ad-hoc networks without planning possible

•

Low bandwidth compared to wired networks (10 vs. 100[0] Mbit/s) V.

VI.Ad Hoc Networking

An ad hoc network is a peer-to-peer network set

laptop or palmtop, may convene in a conference

up temporarily to meet some immediate need.

room for a business or classroom meeting.

For example, a group of employees, each with a

Fig h : AD HOC Networking

Page No.7

Fig i : Difference between AD HOC and Infrastructure networking

5) Technical and other limitations of mobile computing •

Insufficient bandwidth

If the user needs access to a network such as the internet on the go, they

•

must resort to slow wireless WAN systems primarily intended for telephone use

Security standards

When working mobile one is dependent on public networks, requiring

• •

Power consumption

careful use of VPNs.

Since the grid can not be used,

this means unusually expensive batteries

mobile computers must rely entirely on

must be used

battery power. Combined with compact size,

• •

Weather and terrain problems as well as distance-limited connection exist

Transmission interferences

with some technologies. Reception in tunnels and some buildings is poor.

•

•

Potential health damage from

Potential health hazards

related to drivers who were talking through

cellular radio frequency emission is not

a mobile device. Also, cell phones may

known yet. However, more car accidents are

interfere with sensitive medical devi

Page No.8 •

Human interface with device

As HMDs are still uncommon, screens are often too small. Keyboards are impractical,

such as speech or handwriting recognition require training.

especially one-handed, and alternate methods

FUTURE WORK This could be a vision of what’s to come.

• Provide new mobile computing devices with

• Improve the wireless mobile computing by

smaller sizes and more functionality and

overcome the natural obstacles and the other

services.

limitations.

• Improve the mobile-computing device resource

•

capacity and computing power.

computing devices.

• Study new methods & technologies to improve

• The new multi-model devices allow the users to

performance of mobile computing applications.

interact with the system through voice in

Development

of

multi-model

addition to the common existing ways.

CONCLUSION

mobile

It seems that technologically, there is no reason

technology that is as intrusive as mobile

that these mobile devices should not start to

computing must be subject to close scrutiny and

integrate themselves into our everyday lives

meticulous security checks, and must be tightly

anytime soon. Mobile computing technologies

regulated. Whether we can implement this

have been improving to meet the increasing

technology and whether we want to live in this

demand. New mobile devices with more services

kind of world are two distinct matters, and only

and functionality and smaller sizes are available.

we can decide.

However, we must also consider the implications of this technology on ourselves and on society. A

Page No.9 REFERENCE  Heiki Huomo, "The essence of 3rd Generation Wireless Access and Changes Ahead" IEEE Symposium: Wireless Multimedia, Delft, October 29th, 1.998, pp:67-70.

 www.cs.hut.fi/~hhk/GPRS  "Vision for the evolution from GSM to UMTS" , GSM MoU Association 1998, TG.13

 www.gsmworld.com/3g/index.html  www.tagish.co.uk/ethosub/lit6/f51a.htm  www.ee.ubc.ca/~williamm/research.html  GSM MoU Association Permanent Reference Document, Requirements".

 www.gsmdata.com/artholley.htm

TG 32, April 98, "UMTS Radio

Page No.10