CHAPTER 7

Wireless, Mobile Computing and Mobile Commerce

CHAPTER OUTLINE

7.1 Wireless Technologies

7.2 Wireless Computer Networks and InternetAccess

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. BUSINESS OPPORTUNITIES: Smart phones

could be part of a new marketing campaign, based upon location or user preferences.

BUSINESS RISKS: Smart wireless phones may be unable to access regular websites, causing loss of revenue to the target website.

LEARNING OBJECTIVES (continued)

Describe wireless networks according to their effective distance. BUSINESS OPPORTUNITIES: Appropriate

wireless systems can enable the organization to effectively handle new products and equipment as the organization grows.

BUSINESS RISKS: Wireless systems purchased may be unable to keep up with organizational growth, to physically send the signal the required distance.

LEARNING OBJECTIVES (continued)

Define mobile computing and mobile commerce. BUSINESS OPPORTUNITIES: Customer

service and employee flexibility can be improved through the use of innovative forms of wireless devices.

BUSINESS RISKS: Wireless devices can be used to blur the boundary between personal and work time, increasing the amount of time engaged in work.

LEARNING OBJECTIVES (continued)

Discuss the major M-commerce applications. BUSINESS OPPORTUNITIES: Sales,

marketing and geographic information systems can be linked, improving the ability to track products and provide rapid service.

BUSINESS RISKS: Employees may feel an invasion of privacy if geographic positioning and wireless systems are used to track their movements.

LEARNING OBJECTIVES (continued)

Define pervasive computing and describe two technologies that underlie this technology. BUSINESS OPPORTUNITIES: RFID tags or

chips in products can result in a better ability to track products, improving customer service and reducing costs.

BUSINESS RISKS: New technologies may be incorrectly installed, increasing costs and reducing effectiveness.

LEARNING OBJECTIVES (continued)

Discuss the four major threats to wireless networks. BUSINESS OPPORTUNITIES: Restrictive

wire-based systems can be replaced with more flexible wireless systems, lowering cost and improving productivity.

BUSINESS RISKS: Data communicated could be exposed to unauthorized access.

LEARNING OBJECTIVES (continued)

Explain how wireless threats can be mitigated. BUSINESS OPPORTUNITIES: Reasonable

controls can prevent unauthorized access to information, avoiding privacy violations.

BUSINESS RISKS: Excessive controls can slow down employees, making activities cumbersome and more expensive.

7.1 Wireless Technologies

Wireless devices

Wireless Application Protocol (WAP)

Microbrowsers

Wireless transmission media

Capabilities of Wireless Devices

Cellular telephony E-mail access

Bluetooth Short message service

Wi-Fi Instant messaging

Digital camera Text messaging

Global positioning system

Organizer MP2 music player

Scheduler Video player

Address book Internet access

Calculator QWERTY keyboard

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)

Wireless Transmission Media (continued)

Radio Radio transmission uses radio-wave

frequencies to send data directly between transmitters and receivers.

Satellite Radio Satellite radio (digital radio) offers

uninterrupted, near CD-quality music that is beamed to your radio from space. XM satellite radio and Sirius have agreed to merge as of mid-2007.

7.2 Wireless Computer Networks and Internet Access

Short-range wireless networks generally have a range of 100 feet or less.

Medium-range wireless networks are the familiar wireless local area networks (WLANs). The most common type of medium-range wireless

network is Wireless Fidelity (Wi-Fi).

Wide-area wireless networks connect users to each other and to the Internet over

geographically dispersed distances.

Wide-Area Wireless Networks

Cellular Radio uses radio waves to provide two-way

communication 1st Generation 2nd Generation 2.5 Generation 3rd Generation

Wireless Broadband or WiMax access range up to 31 miles and data-transfer

rate up to 75 Mbps

7.3 Mobile Computing and Mobile Commerce Mobile computing

refers to real-time, wireless connection between a mobile device and other computing environments, such as the Internet and an intranet.

Mobility users carry a mobile device and can initiate a real-

time contact with other systems from wherever they happen to be.

Broad reach users can be reached instantly when they carry an

open mobile device.

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

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

Mobile Commerce Applications

Financial Services Mobile Banking Wireless Electronic Payment Systems Micropayments Mobile (Wireless) Wallets Wireless Bill Payments

Intrabusiness Applications

Accessing Information Mobile Portal

aggregates and provides content and services for mobile users that include news, sports, email, entertainment, travel and restaurant information; community services; and stock trading.

Voice Portal a Web site with an audio interface and can also

be accessed through a standard phone or cell phone.

Location-Based Applications

Shopping from Wireless Devices

Location-based Advertising

Location-based Services

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.

7.5 Wireless Security

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

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