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					                                                             Wireless Connectivity   1




Running head: WIRELESS CONNECTIVITY




                             Wireless Connectivity

                                IT329-1004B-01

                                Kenneth Jacobs

                             Prof. James LeMaster

                      Colorado Technical University Online

                               December 3, 2010
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                                       Wireless Connectivity

       Wireless technology has made significant advances from the days of brick sized cellular

telephones. With the right technology it is possible to broadcast and receive information at any

surface location in the world. The Sacred Homes Real Estate Company (SHREC) does not need

to be able to broadcast from any point on the globe. However, they would like to be able to

broadcast from the areas where they conduct business. This report will review some of the

technology SHREC realtors will need to be able to maintain up to date information in more

remote locations.

       There are a few different technologies which can allow us to broadcast over long

distances. Some of the more common technologies are 802.11 (wi-fi), 802.16 (wi-max), and 3G

networks. 3G stands for “Third Generation” and is the most common form of coverage for

telecommunications companies at this time (WirelessInternet, N.D.).

       Wi-fi technology is good for use in office areas, coffee shops, and home networks. A wi-

fi connection broadcasts its signal at either 2.4 GHz or 5 GHz depending on the version of the

802.11 standard that is being used. The maximum quoted range for a wireless connection of this

type is 300 feet (AllBusiness, 2010), but the actual range of these types of wireless connections

will be much less due to walls, furniture, and other obsticles.

       Up to 300Mbps can be transferred on a single band using a Netgear

DGND3300 (2010). This uses 802.11n technology which is able to use

multiple input and output streams (MIMO). This allows different parts of the

data stream to be broadcast and received over different antennas which in

turn greatly increases the bandwidth (Cisco, 2007). Where the previous

802.11 technologies (a, b, and g) had problems dealing with signal reflection and deflection,
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802.11n actually uses those reflections to increase the range of the signal and help reduce areas

without coverage.

       Wimax is another technology used to broadcast broadband signals wirelessly. Wimax is

governed by the IEEE 802.16 standard. One major advantage of wimax is that it is able to

broadcast over great distances (up to about 30 miles) wirelessly. One of the largest problems for

a this type of network is that it is very difficult for the signal to penetrate walls, windows, or

other solid obstacles. To counter this, receivers can be set up on top of buildings in urban areas

to receive the signal being broadcast. From the receiver the signal is then re-transmitted through

the network clients that are connected to that antennae.




       A wimax antennae is able to transmit a broadband signal to receivers that are within its

line of sight. While this can make it a good candidate for urban areas, it also can make wimax a

good choice for rural areas. By broadcasting the signal wirelessly, it eliminates the need to run

expensive cabling to every client subscriber.

       The last option that we will cover is using a telecommunications provider to supply a

connection to the internet. Using a provider’s network will allow SHREC to track the number of
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minutes that are used on a month to month basis. It may also be feasible to separate the contracts

of the different branches into separate contracts. As each branch office has about 50 employees

that means that there are approximately 700 employees outside of the headquarters that will each

need to be able to access their network remotely.

       One advantage to adding this technology to the SHREC network plan is that it will

provide a means for each of the field agents to be able to check on the information related to

their region. They will be able to do this quickly and securely by using the combination of the

3G network capabilities and Virtual Private Networks (VPNs). Realtors in the field will be able

to help clients find the home of their dreams by showing them homes and being able to refine

their search as the different homes are shown. Using one of these services would also allow

SHREC to combine their cell phone and data access plans into one consolidated plan, which

would likely benefit the company by providing a discount.

       Providing the SHREC realtors with cell phones will allow them to stay in contact with

their clients as well as other realtors in their area. Using one common carrier will allow the

realtors from different locales to communicate with each other if they have a client who is

moving from one location to another. Providing another layer of customer service by helping

clients get in contact with a realtor associated with SHREC will help them feel more

comfortable. Having a good experience with SHREC will make it more likely that they would

recommend them to a person they know who is looking to buy or sell a house.

       The cost of buying a cell phone for the realtors can most likely be offset by signing an

extended contract. A plan from Verizon that has up to a maximum of 50 users can share 30,000

minutes (2010). A plan of this type would cost about $2400 per month. Texting could also be

included in the plan for a minor price increase (less than $1 per user per month). Larger plans
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could also be purchased, but the vendor would have to be contacted directly in order to get a

price quote.

       In order to have access to the data they need though, the realtors will need to have a data

plan of some type. There are several companies that offer USB modems for wireless access at

any locations that are covered by the normal cellular network. These modems cost about $60,

and so for an office with 50 people it would be a one-time fee of $3000 per office. A monthly

data access plan for one of these modems would also be about $60 a month for 5GB of data

transferred. If each user were to have their own plan, it would cost about $3000 per month per

office. It is again very likely that a bulk plan would be available to SHREC that would be able to

reduce the costs of the overall plan.

       The cost of the plan would be as follows:

                          Per Office               Remote Offices (14)

Initial Setup             $3,000                   $42,000

Monthly Voice             $2,400                   $33,600

Monthly Data              $3,000                   $42,000

Total (monthly)           $5,400                   $75,600

       The total actual cost will probably be lower once a contract has been negotiated with the

carrier. Another very important part of the negotiations would be determining exactly how much

the different parts of the plan would be used, and adjusting them accordingly. A baseline study

over a few months would probably be most beneficial. The price and usage should reflect the

actual needs and usage of the SHREC employees and network.

       A monthly cost of over $75,000 is a significant investment for any company. Being able

to maintain contact with the agents who are in the field can be invaluable. Dealing with different
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countries will take special considerations which may require that the offices abroad carry their

own contracts separately from those of the offices in North America. These are all items which

will need to be decided on once the telecommunications company of choice has been contacted

for negotiations of a price. Any solution that is decided on will require that the agents are able to

communicate with the home offices. This plan has outlined some of the costs and technology

items that will be required to meet these objectives.
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                                         References

AllBusiness, (2010). 5 Easy Steps to Setting Up a Wireless Network. Retrieved November 29,

       2010 from http://www.allbusiness.com/technology/computer-networking-wireless/10939-

       1.html

Cisco, (2007). 802.11n Wireless Technology Overview. Retrieved December 3, 2010 from

       http://www.terra-wave.com/pdf/802.11n%20Wireless%20Technology%20Overview.pdf

Netgear, (2010). N300 WIRELESS DUAL BAND ADSL2+ MODEM ROUTER DGND3300

       Retrieved December 3, 2010 from

       http://www.netgear.com/home/products/wirelessrouters/high-

       performance/DGND3300.aspx

WirelessInternet, (N. D.). 3G network and services. Retrieved December 3, 2010 from

       http://www.wirelessinternet.org/3G-network.php

Verizon, (2010). Mobile broadband. Retrieved December 4, 2010 from

       http://www.verizonwireless.com/b2c/mobilebroadband/?page=plans

				
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