Post on 22-Dec-2015
9Lecture
The Wireless The Wireless RevolutionRevolution
The Wireless The Wireless RevolutionRevolution
• Identify the principal wireless transmission media and devices, cellular network standards and generations, and standards for mobile Web access
• Describe the major standards for wireless networks and for wireless Internet access
• Evaluate the role of m-commerce in business and describe the most important m-commerce applications
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
OBJECTIVES
• Assess the business value of wireless technology and describe important wireless applications in business
• Identify and describe the challenges posed by wireless technology and management solutions
OBJECTIVES (Continued)
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
The Wireless Revolution The Wireless Revolution
• Mobile phones have become mobile platforms for delivering digital data, used for recording and downloading photos, video and music, Internet access, and transmitting payments.
• An array of technologies provides high-speed wireless access to the Internet for PCs and other wireless handheld devices and cell phones.
• Businesses increasingly use wireless to cut costs, increase flexibility, and create new products and services.
THE WIRELESS COMPUTING LANDSCAPE
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Mobile Versus Fixed-line Subscribers Worldwide
Figure 9-1
THE WIRELESS COMPUTING LANDSCAPE
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Source: International Telecommunications Union, 2002 and 2003, and authors.
• Wireless communication helps businesses easily
stay in touch with customers, suppliers, and
employees.
• Wireless networking increases worker
productivity and output, as workers take less
time to establish contact with people and to
access information.
THE WIRELESS COMPUTING LANDSCAPE
Business Value of Wireless Networking Business Value of Wireless Networking
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
THE WIRELESS COMPUTING LANDSCAPE
• Companies can save on wiring offices, moving, and making network changes by using wireless networks.
• Wireless technology has also been the source of new products, services, and sales channels in a variety of industries, e.g. OnStar, Starbucks “hot spots”.
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Business Value of Wireless Networking (Continued)
• All wireless media rely on various parts of the electromagnetic spectrum.
• Microwave systems transmit high-frequency radio signals through the atmosphere.
• Communication satellites are used for geographically dispersed organizations.
THE WIRELESS COMPUTING LANDSCAPE
Wireless Transmission Media and Devices Wireless Transmission Media and Devices
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Frequency Ranges for Communications Media and Devices
THE WIRELESS COMPUTING LANDSCAPE
Figure 9-2
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Amoco’s Satellite Transmission System
THE WIRELESS COMPUTING LANDSCAPE
Figure 9-3
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
THE WIRELESS COMPUTING LANDSCAPE
Devices for Wireless Transmission:
• Paging systems
• E-mail handhelds
• Cellular telephones
• Personal Digital Assistants (PDAs)
• Smart phones
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
THE WIRELESS COMPUTING LANDSCAPE
Standards:
• Global System for Mobile Communication (GSM)
• Code Division Multiple Access (CDMA)
Cellular Network Standards and Generations Cellular Network Standards and Generations
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
THE WIRELESS COMPUTING LANDSCAPE
Cellular Generations:
• 1G: Analog cellular networks for voice communication
• 2G: Digital wireless networks, primarily for voice communication; limited data transmission capability
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
THE WIRELESS COMPUTING LANDSCAPE
• 2.5G: Interim step toward 3G in the United States
• 3G: High-speed; mobile; supports video and
other rich media; always-on transmission for e-
mail, Web browsing, instant messaging
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Cellular Generations: (Continued)
THE WIRELESS COMPUTING LANDSCAPE
Mobile Wireless Standards for Web Access
• Wireless Application Protocol (WAP): Uses Wireless Markup Language (WML) and microbrowsers
• I-mode: Uses compact HTML and allows for continuous connection
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Wireless Application Protocol (WAP) versus I-mode
THE WIRELESS COMPUTING LANDSCAPE
Figure 9-4
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
WIRELESS COMPUTER NETWORKS AND INTERNET ACCESS
The Institute of Electrical and Electronics Engineers (IEEE) The Institute of Electrical and Electronics Engineers (IEEE) established a hierarchy of complementary standards for established a hierarchy of complementary standards for wireless computer networks. wireless computer networks.
Global Wireless Network Standards:
• IEEE 802.15 (Bluetooth) for the Personal Area Network (PAN)
• IEEE 802.11 (Wi-Fi) for the Local Area Network (LAN)
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Table 9-2
WIRELESS COMPUTER NETWORKS AND INTERNET ACCESS
• IEEE 802.16 (WiMax) for the Metropolitan Area Network (MAN)
• IEEE 802.20 (proposed) standard for the Wide Area Network (WAN)
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Table 9-2 (Continued)
Global Wireless Network Standards: (Continued)
WIRELESS COMPUTER NETWORKS AND INTERNET ACCESS
Bluetooth
• Can link up to 8 devices in 10-m area
• Low power requirements
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
WIRELESS COMPUTER NETWORKS AND INTERNET ACCESS
Wi-Fi
• Three standards: 802.11a, 802.11b, 802.11g
• Infrastructure mode: Devices use access point to communicate with wired network
• Ad-hoc mode (peer-to-peer): Wireless devices communicate directly with each other
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
A Bluetooth Network (PAN)
WIRELESS COMPUTER NETWORKS AND INTERNET ACCESS
Figure 9-5
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
An 802.11 Wireless LAN
WIRELESS COMPUTER NETWORKS AND INTERNET ACCESS
Figure 9-6
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
M-COMMERCE AND MOBILE COMPUTING
• M-commerce: The use of the Internet for purchasing goods and services and also for transmitting messages using wireless mobile devices
• Mobile computing: Enables internet-enabled cell phones, PDAs, and other wireless computing devices to access digital information on the Internet from any location
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Global M-Commerce Revenue, 2000–2005
M-COMMERCE AND MOBILE COMPUTING
Figure 9-7
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Source: Copyright 2005 Jupitermedia Corporation. All rights reserved.
M-COMMERCE AND MOBILE COMPUTING
M-Commerce Services and Applications
• Information-based services: Instant messaging, e-mail, searching for a movie or restaurant using a cell phone or handheld PDA
• Transaction-based services: Purchasing stocks, concert tickets, music, or games; searching for the best price for an item using a cell phone and buying it in a physical store or on the Web
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Table 9-3
M-COMMERCE AND MOBILE COMPUTING
• Personalized services: Services that anticipate
what a customer wants based on that person’s
location or data profile, such as updated airline
flight information or beaming coupons for nearby
restaurants
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
M-Commerce Services and Applications (Continued)
Table 9-3 (Continued)
Customer Personalization with the Ubiquitous Internet
M-COMMERCE AND MOBILE COMPUTING
Figure 9-8
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
M-COMMERCE AND MOBILE COMPUTING
Accessing Information from the Wireless Web
• Wireless portals: Content and services optimized for smaller screens of mobile devices to steer users to the information they are most likely to need
• Voice portals: Accept voice commands for accessing Web content, e-mail, and other electronic applications from a cell phone or standard telephone
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
M-COMMERCE AND MOBILE COMPUTING
Digital Payment Systems and M-Commerce
• Micropayment systemo Individual service providers run their own
separate payment systemso Small payments added on to single bill
• Stored payment systemo Cell phone equipped with smart card storing
rechargeable electronic cash
• Mobile Wallets (m-Wallets): Store personal data to use in online transactions
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
M-COMMERCE AND MOBILE COMPUTING
M-Commerce Challenges
• Slow data transfer speeds on second-generation
cellular networks, resulting in higher costs to
customer
• Limited memory and power supplies
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
M-COMMERCE AND MOBILE COMPUTING
• More Web sites need to be designed specifically
for small wireless devices.
• Keyboards and screens on cell phones are still
tiny and awkward to use.
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
M-Commerce Challenges (Continued)
WIRELESS TECHNOLOGY IN THE ENTERPRISE
Wireless Applications for Customer Relationship Wireless Applications for Customer Relationship ManagementManagement
• Access customer account records and information at any time or location
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Wireless CRM enables sales and field service professionals to:
• Update customer accounts and deal information
to update customer database instantaneously
• Receive alerts to important events
• Enter, perform, and update transactions and
product information
WIRELESS TECHNOLOGY IN THE ENTERPRISE
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Wireless Applications for Customer Relationship Management (Continued)
Pitney Bowes’s Wireless CRM System
WIRELESS TECHNOLOGY IN THE ENTERPRISE
Figure 9-9
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Wireless Supply Chain Management (SCM) and Radio Frequency Identification (RFID)
• Wireless supply chain management systems: Provide simultaneous accurate information about demand, supply, production, and logistics as goods move among supply chain partners
• Radio Frequency Identification (RFID) systems: Provide a powerful technology for tracking the movement of goods throughout the supply chain
WIRELESS TECHNOLOGY IN THE ENTERPRISE
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
How RFID Works
WIRELESS TECHNOLOGY IN THE ENTERPRISE
Figure 9-10
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Wireless Applications:
• Electronic Medical Record (EMR) retrieval
• Wireless note taking for patient charts
• Lab test results
• Prescription generation
• Medical databases
WIRELESS TECHNOLOGY IN THE ENTERPRISE
Wireless in Health CareWireless in Health Care
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Wireless Sensor Networks and Pervasive Computing
• Wireless sensor networks (WSNs): Networks of
interconnected wireless devices that are
embedded into the physical environment to
provide measurements of many points over large
spaces
WIRELESS TECHNOLOGY IN THE ENTERPRISE
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
• Pervasive computing: Wireless technologies are
pushing computing into every facet of life,
including cars, homes, office buildings, tools and
factories; providing connections anywhere and
anytime.
WIRELESS TECHNOLOGY IN THE ENTERPRISE
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Wireless Sensor Networks and Pervasive Computing (Continued)
A Wireless Sensor Network
WIRELESS TECHNOLOGY IN THE ENTERPRISE
Figure 9-11
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
Source: From Jason Hill, Mike Horton, Ralph King, and Lakshman Krishnamurthy, “The Platforms Enabling Wireless Sensor Networks,” Communications of the ACM 47, no. 6 (June 2004).
MANAGEMENT OPPORTUNITIES, CHALLENGES, AND SOLUTIONS
Management Opportunities: Management Opportunities:
Wireless technology offers:
• Flexible business processes
• Business processes not limited by time or space
• New channel for communicating with client
• Source of new products and services
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
MANAGEMENT OPPORTUNITIES, CHALLENGES, AND SOLUTIONS
Management Challenges: Management Challenges:
• Integrating wireless technology into the firm’s IT
infrastructure
• Maintaining security and privacy
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
MANAGEMENT OPPORTUNITIES, CHALLENGES, AND SOLUTIONS
Solution Guidelines: Solution Guidelines:
• Identifying areas in which wireless can provide value
• Creating a management framework for wireless technology
• Using a pilot program before full-scale rollout of wireless systems
Management Information SystemsManagement Information SystemsLecture 9 Lecture 9 The Wireless Revolution The Wireless Revolution
The following are some of the guidelines for managing mobile technology in the enterprise: