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Wireless LAN
What is a Wireless LAN
• A wireless local area network(LAN) is a flexible data
communications system implemented as an extension
to, or as an alternative for, a wired LAN.
• Using radio frequency (RF) technology, wireless LANs
transmit and receive data over the air, minimizing the
need for wired connections.
Developing a Wireless LAN
•Pros and cons of a wireless LAN and its practical
uses.
•Configurations, components, and hardware
functions.
•Total cost of ownership, return on investment, and
pricing.
•Standards, security, client/server interaction, and
specifications.
The Advantages and Disadvantages
of Using a Wireless LAN and its
Practical Uses
Benefits of Wireless LAN
• Productivity, convenience, and cost advantages
• Installation speed and simplicity.
• Installation flexibility.
• Reduced cost-of-ownership.
• Mobility.
• Scalability (Scalability is the property of a system to handle a
growing amount of work by adding resources to the system)
Benefits of Wireless LAN
• Installation speed and simplicity
• No cable to pull.
• Eliminates current architecture obstacles.
• Few transmitters/receivers for multiple for users.
Benefits of Wireless LAN
• Installation flexibility
• The network goes where wires cannot.
• Not constrained by expensive walls.
• Easy to add more computers and devices.
• Reduced cost-of-ownership
• Mobile devices are less expensive than computer
workstations.
• No need to build wiring closets.
• Mobility.
Benefits of Wireless LAN
• Scalability
• Spans a variety of topologies.
• Configurations are easily changed.
• Works over great distances.
• Effective for wide range of user communities.
Disadvantage of Wireless LAN
•Cost
•Wireless network cards cost 4 times more than
wired network cards.
•The access points are more expensive than hubs
and wires.
•Signal Bleed Over
•Access points pick up the signals of adjacent
•access points or overpower their signal.
Disadvantage of Wireless LAN
•Environmental Conditions
•Susceptible to weather and solar activity.
•Constrained by buildings, trees, terrain.
•• Less Capacity
•Slower bandwidth.
•Limit to how much data a carrier wave can transmit
without lost packets impacting performance.
Practical Use of Wireless LAN
• Corporate
• Mobile networking for e-mail, file sharing, and
• web browsing.
• • Education
• Connectivity to the University Network for collaborative
class activities.
• Ability to access research sources without requiring a hard
point.
Practical Use of Wireless LAN
•Finance
•Traders can receive up-to-the-second pricing
information.
•Facilitates electronic payments for goods and
services.
•Improve the speed and quality of trades.
Practical Use of Wireless LAN
•Hospitality and Retail
• Electronic food orders for pickup or from table and
then Pay Electronically
•Setting up temporary registers for special events.
•Check public transportation.
•Send notice to hotel of arrival.
Practical Use of Wireless LAN
•Manufacturing
•Link factory floor workstations to servers.
•Remote data collections.
•Tracking of goods.
•• Healthcare
•Emergency medical information readily available.
•Access to schedule information.

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Week 9.pptx

  • 2. What is a Wireless LAN • A wireless local area network(LAN) is a flexible data communications system implemented as an extension to, or as an alternative for, a wired LAN. • Using radio frequency (RF) technology, wireless LANs transmit and receive data over the air, minimizing the need for wired connections.
  • 3. Developing a Wireless LAN •Pros and cons of a wireless LAN and its practical uses. •Configurations, components, and hardware functions. •Total cost of ownership, return on investment, and pricing. •Standards, security, client/server interaction, and specifications.
  • 4. The Advantages and Disadvantages of Using a Wireless LAN and its Practical Uses
  • 5. Benefits of Wireless LAN • Productivity, convenience, and cost advantages • Installation speed and simplicity. • Installation flexibility. • Reduced cost-of-ownership. • Mobility. • Scalability (Scalability is the property of a system to handle a growing amount of work by adding resources to the system)
  • 6. Benefits of Wireless LAN • Installation speed and simplicity • No cable to pull. • Eliminates current architecture obstacles. • Few transmitters/receivers for multiple for users.
  • 7. Benefits of Wireless LAN • Installation flexibility • The network goes where wires cannot. • Not constrained by expensive walls. • Easy to add more computers and devices. • Reduced cost-of-ownership • Mobile devices are less expensive than computer workstations. • No need to build wiring closets. • Mobility.
  • 8. Benefits of Wireless LAN • Scalability • Spans a variety of topologies. • Configurations are easily changed. • Works over great distances. • Effective for wide range of user communities.
  • 9. Disadvantage of Wireless LAN •Cost •Wireless network cards cost 4 times more than wired network cards. •The access points are more expensive than hubs and wires. •Signal Bleed Over •Access points pick up the signals of adjacent •access points or overpower their signal.
  • 10. Disadvantage of Wireless LAN •Environmental Conditions •Susceptible to weather and solar activity. •Constrained by buildings, trees, terrain. •• Less Capacity •Slower bandwidth. •Limit to how much data a carrier wave can transmit without lost packets impacting performance.
  • 11. Practical Use of Wireless LAN • Corporate • Mobile networking for e-mail, file sharing, and • web browsing. • • Education • Connectivity to the University Network for collaborative class activities. • Ability to access research sources without requiring a hard point.
  • 12. Practical Use of Wireless LAN •Finance •Traders can receive up-to-the-second pricing information. •Facilitates electronic payments for goods and services. •Improve the speed and quality of trades.
  • 13. Practical Use of Wireless LAN •Hospitality and Retail • Electronic food orders for pickup or from table and then Pay Electronically •Setting up temporary registers for special events. •Check public transportation. •Send notice to hotel of arrival.
  • 14. Practical Use of Wireless LAN •Manufacturing •Link factory floor workstations to servers. •Remote data collections. •Tracking of goods. •• Healthcare •Emergency medical information readily available. •Access to schedule information.