Mobile Computing

2001/9/21 Prof. Huei-Wen Ferng 1

Mobile Computing

Assistant Professor: Huei-Wen Ferng Office: R503

URL: http://santos.ee.ntu.edu.tw/~wenSeptember 21, 2001


Textbooks/ References

Mobile Data & Wireless LAN Technologies (Rifaat A. Dayem/ Prentice Hall/

ISBN 0-13-839051-7/ Pearson Education Taiwan Tel: 23702337)

Wireless Personal Communications Systems (David J. Goodman/ Addison Wesley/ ISBN 0-201-63470-8/

全華 Tel: 25071300) Selected Papers


Grading

Midterm exam 30% Final exam 30% Final report 30% Homework/Participation 10%


Contents/ Course Outline

Introduction: Why and Who Will Be Mobile? Introduction: Wireless Networking Mobile Data Services & Technologies Wireless LAN Technologies & Products AMPS System: Analog Cellular System (1G) GSM System: Digital Cellular System (2G) The Third Generation Wireless Communications

System (3G) Other Supplementary Topics


Chapter 1

Introduction:

Why and Who Will Be Mobile?


Telecom Networks/Systems

Wired Networks (Internet) Local Area Networks (LANs) Public Data Networks, i.e., WANs

Wireless Networks Wireless LANs Mobile Data Networks

Fixed Telephone Networks, i.e., Public Switched Telephone Networks (PSTNs)

Mobile Phone Systems


Telecom Statistics

Note: According to Jan. 2001 statistics, total mobile phone subscribers are 18.3M in which CHT: 4.7M(25.7%), and others: 13.61M(74.3%)

(1) Telephone (M)

(2) Mobile phone (K)

(3) Radio paging (K)

(4) Internet (K)

9.17(7.9%)

770(31.8%)

2,083(20.5%)

21

10.01(9.2%)

970(26.0%)

2,301(10.5%)

165(686.0%)

10.86(8.5%)

1,492(53.8%)

2,641(14.8%)

429(160%)

11.50(5.9%)

4,727(217.0%)

4,261(61.3%)

1,665(288%)

12.04(4.7%)

11,541(144.0%)

3,873(-9.1%)

2,874(72.6%)

12.64(5.0%)

17,743(53.7%)

2,867(-26.0%)

4,650(61.8%)

1995 1996 1997 1998 1999 20001995 1996 1997 1998 1999 2000


Some Forecasts

In 3 years, Internet traffic will grow to 10,000 times its current level.

Global e-business revenue will grow 86% per year to $ 1.4 Trillion in 2003.

Bandwidth consumption will grow by a factor of 100 to 200 over the next four years.


What is Mobile Computing?

Mobile Computing is also known as “Ubiquitous Computing” (anywhere, anytime, any device)

The scope covered by Mobile Computing roughly includes: Mobile Data and Wireless LANs


Mobile Computing Chart

Verticals Horizontals

Mobile operation systems

Notebooks PDAs Phones Others

WANs LANs

Applications

Operating systems

Devices

Wireless networks


Application Layer

Vertical applications: those apply to a function part of an industry such as field sales and filed service, or to specific market segment such as banking or health care

Horizontal applications: apply to many people across most market segments


Operation Systems Layer

This layer provides tools for application programmers to access different mobile devices and different wireless networks

A key layer to rapid growth of wireless networking and proliferation of applications


Device Layer

All the mobile devices we carry with us: Notebook computers Personal Digital Assistants (PDAs) Cellular phones Personal communicators Combination devices

Combination devices are now rapidly emerging


Wireless Networks Layer

The Wireless Wide Area Network (WAN) is also called “Mobile Data” including: Packet networks: RAM/Mobitex, ARDIS/Modacom Paging networks Data over cellular: CDPD (over AMPS), GPRS (over GS

M) Data over satellite

Wireless LANs: with much higher rate but smaller coverage than Mobile Data networks


Applications Market by 2005

16%

8%

5%

26%

45%

Transportation

Field service

Field sales

Personal communications

Mobile office


Field Sales Application

Sales quotation Inventory check Order entry Credit authorization Invoicing


Field Service Application

Obtaining a maintenance history of the item requiring service

Performing complex diagnostics that require access to databases and applications at other locations

Checking parts inventory if required Updating the maintenance database after the

service is done Invoicing for the job Real-time dispatching of the filed engineer


Transportation Application

The oldest application Including:

Automatically locating the vehicle Dispatching the vehicle to the next job Routing the vehicle if required Capturing data from the vehicle


Personal Communications Application

Messaging Calendaring Directories Info Systems Fax


Mobile Office Application

Fax E-mail LAN access File transfer Database access


Vertical Market Examples

Airlines Police Field sales Emergency Hospitals Maintenance Retail stores

Stock exchanges Casinos Hotel Taxicabs Rental car agencies Transportation


Challenges

Security User authentication Data privacy Privacy of user location

Bandwidth Limited bandwidth

(10K~10M)

Software Still in its infancy The main/ biggest

reason for late data implementations

Safety Radiation is harmful to

human beings Trends: low power, thus

less radiation


Application/Technology MatrixSector Application Technology

Cellular Paging Mobile Data WLANs

Private

(corporate)

Service engineering

** * ** *

Order entry ** 0 ** *

Vehicle routing ** 0 ** ***

Incident control ** 0 ** ***

Public

Network

services

Facsimile *** 0 * 0

Text messaging ** *** *** ***

Info services

News * ** * 0

Market * ** * 0

Financial * ** * 0

Location tracking * 0 0 0

Traffic alerts * *** ** 0


Horizontal Application Examples

Near term horizontal applications (LAN app.) Dynamic work environment

Trade show conference

Difficult to wire areas New employees who need immediate service

Broad-based horizontal applications (WAN app.) Wireless meeting Wireless traveler Interactive TV


Positioning of Wireless Networking

Wireless Data

Today Future

Mobile Data

10 Kbps

100 Kbps

Wireless LANs

1 Mbps

10 Mbps

Wired Data

Today Future

Wired Data

100 Kbps

>1 Mbps

Wired LANs

10 Mbps

>100 Mbps

Comparison between wireless data & wired data capacities Position of wireless networks relative to wired networks:

Not a replacement but an extension to wired networks


Case Studies

ADP (Automatic Data Processing) British Airways HP in the UK South Dakota University Integrated Device Technology Revenue Canada LBS platform by OleMap


Why LBS Platform? Why OleSpot?

August 30, 2001

m-Commerce vs. Location-based Service

Location Based Service 研討會主辦單位 : 國立臺灣科技大學創新育成中心

友邁科技協理黃國聰

[email protected]


Thin Client vs. Thick Client

Thick Thin

ThickThin

Server

Client

Client

Server

Display

Render

DisplayElement

Generator

Server

Client

Display

Render

DisplayElement

Generator

Client

Server

Display

Render

DisplayElement

Generator

Client

Server


Wireless

Mobile Location Service

CRM, ERP, B2B, B2C

Decision Support Services

Data

Open Standard

Location Specific

Any Devices

Traditional GIS≠Wireless Location Service

Wired

Desktop Mapping

AM/FM,CAD

Business Systems

Map

HTML

Location Independent

PC

From To

We need a whole new spatial technology in wireless world.

Traditional GIS Mobile Location Service


NeighborCell #1

NeighborCell #2

ServingCellLMU

LMU

LMU

LocationCalculation& Control

Wireless Gateway

Web Server(Translator)

Wireless Gateway

Web Server(Translator)

Client

HTML, cHTML, HDML, WML, vXML, XML…etc.

Wireless Portal Service PlatformOther I

CPs

User ID, Device Pattern,XY, Request,… XML protocol

Location-based Service Apps

SQL query enabled

OleMap SpatialDataBase

Spatial DataBase enabled

Java APIs

DB Server

App Interface

Location Engine Java LBS Engine

EJB Container(WebLogic)

Non-LBS AppsBy ICPs

SubscriberPreference

LBS Apps

Billing

Billing

Corporate

Apps

Log File

XxxxxxXxxxXxxxxxxxx

SystemSetting

XxxxxxXxxxXxxxxxxxx

XxxxxxXxxxXxxxxxxxx

LBS Architecture

LocationCapableHandset

http://www.jlocationservices.com/TechnologyShowcase/products/SunFeatured.J2EE.html


Drives Increased Traffic

Revenue ShareRevenue

Source: Telecompetition Inc., Feb 2001

Traditional Voice-Only Scenario

User

MobileOperator

User Billed by Mobile Operator

2001/9/21 Prof. Huei-Wen Ferng 32Source: Telecompetition Inc., Feb 2001

New Revenue Streams Through Partnering



User

MobileOperator

User Billed by Mobile Operator

AdvertisersW-ASPs

Content ProvidersAnd Aggregators

Mobile Network

Mobile Portal

New Revenue Streams to the operator:

• Subscription

• Advertising

• Transactions(% of M-Commerce sales)

• Premium priced airtime


MVNOs (Mobile Virtual Network Operators)

Service Providers: ISPs and MVNOs




User

MobileOperator

User Billed by ISP or MVNO

W-ASPsContent ProvidersAnd Aggregators

Mobile Network

Mobile Portal

ISPs and MVNOs


M-Commerce Adds Complexity



User

MobileOperator

User Billed by Mobile Portal

AdvertisersW-ASPs

Content ProvidersAnd Aggregators

Mobile Network

Mobile Portal

User

W-ASPsContent ProvidersAnd Aggregators

ISPs and MVNOs

Advertisers

User Could be Billed by Content Provider



What is LBS Platform ?

LBS platform is a spatial information computing environment that developers can use of APIs that it provides to deploy LBS applications. The developers need not to know too

much about spatial computing and spatial data and database.


Need to Support All Devices

https://store.palm.com/Catalog/productdetails.asp?productnr=3180&parent=1003&type=5&peripherals=1

http://www.palm.com/products/palmm505/

http://www.palm.com/products/palmiiic/

http://mobile.ericsson.com/t28/


Need to Support Various Apps

http://locationservices.autodesk.com/products/index.htm

http://locationservices.autodesk.com/products/index.htm


Wired vs. Wireless Technology

Source: Mobilocity 2000


Web Server(XML translator)

Web Server

(XML translator)

SQL query enabled

Mark-up Language

Spatial DataBase enabled

DB Server

App Interface

Client

Location EngineJava LBS Engine

EJB Container(WebLogic )

XML protocol enabled

HTML, cHTML, HDML,WML, vXML, XMLetc.

J2EE

VectorMap

RasterMap

SatelliteMap

RouteMap

CorporateData

Spatial Data

User

Preference

Log

File

Billing

Record

Device

Pattern

Java enabled

Java LBS APIs

LocationS

earch

Traffic

Rou

ter

DirectionR

outer

Ad

dressL

ocator

P.O

.I.F

inder

Oth

erA

PIs

XY

Resolver

Java Map

Produ

cer

Java LBS Applications

XML protocol enabled

App Server

AP

P

AP

P

AP

P

AP

P

AP

P

AP

P

AP

P

Oth

erA

PP

XML

Java

OleSpotTM Service Concept


Characters of OleSpotTM

Pure Java development

Cross-platform solution

Following J2EE architecture

Scalable, robust, flexible

Interoperability

XML open standard parser


OleSpotTM Sample APIs

P.O.I. finder Java map producer Geocoding XY resolve Driving direction Mass transportation

routing

Reasonable restaurant

Buffering analysis Coordinate

transforming Address locator Location Search

– There are more than 43 APIs on OleSpot now. It will add if in need.


Ole-Menu Riches Mobile Life

Developer or programer can easily to deploy LBS apps

from XML APIs that OleSpot released

OleSpot provides more than 20 LBS practical and usef

ul apps in the first stage Ole-Menu We are seeking partners to deploy more and more LBS

applications

Examples: see next page


快遞物流業車隊安全維護、監控與導航

人員行程掌控與工作派遣外業人員行動監控、搜尋或導航

公車車班時程與間距查詢系統

Source: YesMobile 2001

Services for Enterprise


Sample Applications

Driving direction Mass transportation routing Rental information Reasonable restaurant E-map on PDA


Services for Consumers

項次項目內容特點1 e「加油點靈」 PDA讓行動商務的使用者可以透過手機、、並可結合友邁的大眾運輸搭乘

Pocket PC等手持式設備，或裝置在車上的設備，指引及行車路徑指引了解距離現在所處地點最近的加油站的方位

2 Parking e「點靈」透過行動通訊快速資訊傳遞性的功能，開車或愛車不幸被拖吊的開車及騎車PDA騎機車的消費族群，可以輕易在手機及上族亦可迅速知道愛車被拖吊置

知道附近的停車場放的地點3 e「現金點靈」結合行動通訊個人化及移動性的功能，再加上可以配合電子地圖，輕鬆的掌

ATM銀行自動櫃員機的位置資訊，自在運用掌握附近提款機的地點握自己現金的流通

4 e「維修點靈」結合了行動通訊快速資訊傳遞性的功能，讓消將預定行程的變化和意外損失費者在面對愛車臨時發生狀況，能在最短的時降到最低的程度間知道修車場或輪胎店的位置

5 e「娛樂點靈」結合行動通訊個人化及移動性的功能，再加上重要地標及輕鬆靈活的使用者娛樂生活相關資訊，消費者可以輕鬆掌握所在界面，方便使用者輕易查詢地附近指定範圍的娛樂生活及商店資訊

P.O.I. Finder：「 e 點靈」系列

2001/9/21 Prof. Huei-Wen Ferng

LBS Platform Levers The Market

LBS Platform

Applications LBS

Market

Mobile Computing

Documents

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hueiwen ferng office

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