CHAPTER 7 Wireless Technologies and the Modern Organization.

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Presentation transcript:

CHAPTER 7 Wireless Technologies and the Modern Organization

CHAPTER OUTLINE 7.1 Wireless Technologies 7.2 Wireless Computer Networks and Internet Access 7.3 Mobile Computing and Mobile Commerce 7.4 Pervasive Computing 7.5 Wireless Security

LEARNING OBJECTIVES Discuss the various types of wireless devices and wireless transmission media. Describe wireless networks according to their effective distance. Define mobile computing and mobile commerce.

LEARNING OBJECTIVES (continued) Discuss the major m-commerce applications. Define pervasive computing and describe two technologies that underlie this technology. Discuss the four major threats to wireless networks.

Chapter Opening Case Digicel store in Haiti

Examples of Digicel Coverage Suriname Papua New Guinea Cayman Islands

7.1 Wireless Technologies Wireless devices Wireless Application Protocol (WAP) Microbrowsers Wireless transmission media

Browser vs. Early Microbrowser

Apple iPhone with Safari browser

Capabilities of Wireless Devices Cellular telephony access BluetoothShort message service Wi-FiInstant messaging Digital cameraText messaging Global positioning system OrganizerMP2 music player SchedulerVideo player Address bookInternet access CalculatorQWERTY keyboard

History of the Cell Phone Check out the history of the cell phone in imageshistory

Examples of today’s wireless devices Blackberry Curve 8900 T-Mobile G1 and G2

Examples of today’s wireless devices (continued) Helio Ocean Sony Mylo

Examples of today’s wireless devices (continued) T-Mobile Mytouch 3G

Wireless Transmission Media Microwave Transmission Satellite transmission Geostationary Orbit (GEO) Middle Earth Orbit (MEO) Low Earth Orbit (LEO) Global Positioning System (GPS) Internet Over Satellite (IOS)

Satellite Footprint Comparison

Global Star LEO Coverage

How the Global Positioning System Works

GPS Systems Smart phone and GPS system

Other GPS Russian GLONASS European Union GPS China Beidou GPS

Wireless Transmission Media (continued) Radio Satellite Radio

Infrared A test to see if your TV remote control is working

7.2 Wireless Computer Networks and Internet Access Short range wireless networks Medium range wireless networks Wide area wireless networks

Short Range Wireless Networks Bluetooth Ultra-wideband Near-field Communications

FitSense: A Personal Area Network

Bluetooth

Ultra-Wideband (UWB) Ultra-wideband has many uses as you can see at the TimeDomain Web site. This article discusses the use of UWB in fire-fighting.article

Near-Field Communications in action

Medium Range Wireless Networks Wireless fidelity (Wi-Fi) Wireless access point Hotspot Wireless network interface card

Diagram of wireless hotspot

A Wi-Fi Hotspot

Wi-Fi at Starbucks

Wi-Fi at McDonalds

Wireless Mesh Networks

Example of a mesh network A mesh network from Meraki and one node

Wide-Area Wireless Networks Cellular Radio 1st Generation 2nd Generation 2.5 Generation 3rd Generation Wireless Broadband or WiMax

Cellular Radio Network

A Wi-Max Hotspot Golden Gate bridge

7.3 Mobile Computing and Mobile Commerce Mobile computing Mobility Broad reach

Mobile Computing The characteristics, mobility and broad reach, create five value-added attributes that break the barriers of geography and time: Ubiquity Convenience Instant connectivity Personalization Localization of products and services

Mobile Commerce The development of m-commerce is driven by the following factors: Widespread availability of mobile devices No need for a PC The “Cell phone culture” Declining prices Bandwidth improvement

Example of Mobile Commerce

Example of mobile commerce Car key and the Speedpass

Mobile Commerce Applications Financial Services Mobile Banking Wireless Electronic Payment System

Financial Services (continued) Micropayments Mobile Wallet Wireless Bill Payments

The GO-Tag

Intrabusiness Applications Accessing Information Mobile Portal Voice Portal

Location-Based Applications Shopping from Wireless Devices Location-based Advertising Location-based Services

Using Google Earth in location-based advertising

Example of location-based advertising Digital screen

Sense Networks

Telemedicine Telemedicine predicted in 1924 and today

Telemetry Applications Technicians can use telemetry to identify maintenance problems in equipment; Doctors can monitor patients and control medical equipment from a distance; Car manufacturers use telemetry for remote vehicle diagnosis and preventive maintenance.

Medical Telemetry

Automotive Telemetry The OnStar system from GM

7.4 Pervasive Computing Radio frequency identification (RFID) Wireless sensor networks (WSNs)

Anatomy of a Bar Code

Various RFID Tags

RFID Dust by Hitachi Human hair

RFID and Your Privacy

RFID tracking tag from the movie “Mission Impossible”

Product with bar code and RFID tag RFID tag Bar code

Small RFID Reader and Tag

Large RFID Reader

Example of RFID Application Coming soon to a supermarket near you See videovideo

RFID at Beijing Olympics Beijing Olympics tickets Embedded RFID chip Bar Code

RuBee A RuBee tag RuBee signals will go through metal and liquids, where RFID signals will not

Wireless Sensor Networks (WSNs) Mote

Inrix traffic system

“Smart” Electric Grid Visualization of home energy usage

7.5 Wireless Security Four major threats Rogue access point War driving Eavesdropping RF (Radio frequency) jamming

Chapter Closing Case Proposed wireless handheld for census workers