Access over 20 million homework & study documents

Designing the Wireless Home Network Case Study

Content type
User Generated
Subject
Information Technology
Type
Case Study
Rating
Showing Page:
1/4
Defining the Scope of the Case Study
The scope of Jan’s solution will be limited by the fact that she already has broadband access installed
in her home. She also has instructions for connecting to the corporate LAN. However, she has not
checked to see if the wireless home network will affect these instructions. Jan’s challenge is that she
needs reliable high-speed access to the corporate LAN from the new home office and other
convenient locations in the house. She wants to interfere as little as possible with use of the PC in
the family room, and she needs her laptop to be inaccessible from the family PC. She would like to
have printing capability in the home office. However, her solution must fit within a limited budget.
Finally, all equipment that she uses for her solution must be immediately available.
Designing the Wireless Home Network
This section explains how Jan determines the need for, plans, designs, and implements a wireless
home network.As a part of these processes, Jan learns more about the strengths and weaknesses of
wireless networks, and about the costs and advantages of different vendor solutions.
The processes she follows are: Determining the requirements Analyzing the existing
environment Creating a preliminary design Developing a detailed design Implementing the
network Using this design methodology, Jan decides to conduct her investigation as if she is
designing a network for a business, making appropriate changes as the situation warrants. Jan
begins her investigation by performing the following tasks: Determining the functional
requirements of her manager and family Talking to her company’s IT staff Drawing a physical
map of her home Determining the Functional Requirements The actual users of Jan’s home network
will be Jan, her husband, and their children. Since Jan’s manager will be auditing her work, she also
feels that her manager must give her advice regarding what is expected. Jan works with her manager
and family to define their expectations of the home network. Determining the Needs of
Management At work, Jan discovers that her manager is concerned primarily about the security of
the files she will be using.Will the security of the corporate LAN be compromised by the wireless
connection? Can the home network be child-proofed? Based on this conversation, Jan decides that
the connection between her laptop and the corporate LAN must be secure from the family computer
and safe from Internet hackers. Another concern is risk mitigation—basically, what happens if Jan’s
laptop goes down? What backup procedure does Jan envision? Jan believes that she will copy her
work to the company network on a daily basis.This practice should limit the amount of loss to a
single day
Determining the Needs of the Family Though intrigued by the possibilities of a wireless network,
Jan’s husband is concerned primarily about the impact on the family’s budget, and the future value
of the new equipment.Although the home network will benefit Jan’s employer, the employer will
not finance any of Jan’s home networking needs. Since home networks, and wireless technology in
particular, are considered “new technology,” he reasons that the costs will be significantly higher
now than they will be in the future. Jan and her husband are so afraid that the cost will be
phenomenal that she limits her desires to the basic necessities. Since Jan plans to buy a new laptop
PC and another printer, they want to hold the cost of the network to a few hundred dollars.They
consider running wires to her home office themselves if that would be a less expensive alternative.
Her husband even suggests, somewhat jokingly, moving the printer to Jan’s office during the day and
back to the family room for schoolwork at night.Although moving the printer is not practical, Jan
considers moving the printer permanently to the home office.The children debate this idea because

Sign up to view the full document!

lock_open Sign Up
Showing Page:
2/4
they frequently need the printer to print papers and book reports for school.The children also are
concerned about how a network will affect the bandwidth for their online gaming. Talking to the IT
Department Jan calls Diane, a network engineer in the company’s IT department. Diane tells her that
to secure her laptop from the family PC, she must purchase a wireless access point (AP) rather than
network the PC and the laptop.Without the access point, the family PC would have to act as a server
to the laptop, since the wired broadband connection is near that PC. However, with the wireless
access point, Jan can make either PC the server, or even purchase an access point that would
perform that function. She also needs the access point if she wants to connect any other devices
wirelessly, such as the printer or another PC. Of course, in doing so, Jan needs to remember that
each device requires a wireless network card. Diane regards the security risks of the wireless LAN to
be acceptable as long as Jan’s browser uses standard encryption technology. Since the range of
home wireless LANs on the market today is about 100 meters, she does recommend that Jan not
make it well known outside of the office that she’s using a wireless LAN for company business. Diane
also recommends that Jan purchase a home firewall to protect her from Internet hackers over her
broadband connection. However, she assures Jan that the wireless network will cause no serious
configuration issues in connecting to the corporate LAN.The configuration steps will be the same.
Jan also discovers that one of her coworkers has a wireless network at home, so she talks to him
about his experiences. He is largely happy with his home network. His brother connected it for him,
so he can’t say much about network design or the advantages of various vendor solutions. However,
one problem he’s had is that the network seems to cause a “popping and cracking” noise in his
cordless phone. He has noticed that the noise is more serious when he is transferring data. Creating
a Site Survey of the Home In preparing to conduct her site survey, Jan decides she needs to consider
the following factors: Whether any locations where she wants to use the laptop will be more than
100 meters (over 300 feet) away from the access point. Whether any potential sources of
interference will cause any problems with the network.The attention Jan’s coworker brought to this
issue made her realize that she needs to learn more about interference issues. Her cordless
telephone will be important for her work activities. Since the access point must be located near the
Broadband connection, Jan decides to measure her house and create a diagram showing all the
relevant distances. She also decides to note any sources of interference.With a little investigation,
she finds that many cordless telephones do in fact experience interference from the current
generation of wireless LANs. Even more, she finds that radio frequency (RF) leakage from microwave
ovens also can cause wireless LANs to experience a loss in the data rate.
Assessing the Functional Requirements Based on her preliminary investigation, Jan comes up with
the following list of design considerations: She needs to purchase a wireless access point. She
needs to purchase wireless network cards for any devices she may want to connect wirelessly. She
should purchase a home firewall to protect from Internet hackers. The location of all wireless
devices must remain within 100 meters of the access point for connectivity. She must consider
sources of interference and their locations. The printer in the family room is used considerably.
The wireless network will not cause any problems in configuring access to her corporate LAN. Jan
also completes a site map of her house showing the approximate location of the wireless accent
point, all relevant dimensions of her house, and the types and locations of any interference sources.
Her diagram is shown in Figure 9.1. Analyzing the Existing Environment The next step in Jan’s design
methodology is to analyze her existing environment. Her analysis includes the following processes:
Identifying current technology options and constraints Investigating the costs Weighing the costs
and benefits Jan decides that her current applications consist mostly of entertainment and school
content. She and her husband also occasionally use the family PC and printer for work.The two

Sign up to view the full document!

lock_open Sign Up
Showing Page:
3/4

Sign up to view the full document!

lock_open Sign Up
End of Preview - Want to read all 4 pages?
Access Now
Unformatted Attachment Preview
Defining the Scope of the Case Study The scope of Jan’s solution will be limited by the fact that she already has broadband access installed in her home. She also has instructions for connecting to the corporate LAN. However, she has not checked to see if the wireless home network will affect these instructions. Jan’s challenge is that she needs reliable high-speed access to the corporate LAN from the new home office and other convenient locations in the house. She wants to interfere as little as possible with use of the PC in the family room, and she needs her laptop to be inaccessible from the family PC. She would like to have printing capability in the home office. However, her solution must fit within a limited budget. Finally, all equipment that she uses for her solution must be immediately available. Designing the Wireless Home Network This section explains how Jan determines the need for, plans, designs, and implements a wireless home network.As a part of these processes, Jan learns more about the strengths and weaknesses of wireless networks, and about the costs and advantages of different vendor solutions. The processes she follows are: ■ Determining the requirements ...
Purchase document to see full attachment
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Anonymous
Great content here. Definitely a returning customer.

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4