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MIS Week 7 Notes

by: Tayla Dionne

MIS Week 7 Notes MIS 111

Tayla Dionne
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About this Document

Week 7
Computers and the Internetworked Society
Dr. William Neumann
Class Notes
business, Excel




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This 2 page Class Notes was uploaded by Tayla Dionne on Wednesday October 5, 2016. The Class Notes belongs to MIS 111 at University of Arizona taught by Dr. William Neumann in Summer 2015. Since its upload, it has received 2 views. For similar materials see Computers and the Internetworked Society in Business at University of Arizona.


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Date Created: 10/05/16
Wednesday, October 5, 2016 Wireless Communication in Business MIS 111 - http:// • Defining for the browser how to transfer information • Protocol - Challenges of Wireless Communication • Confidentiality • Integrity • Accessibility - Decreasing Signal Strength • radio signal attenuates as it propagates through matter (path loss) - Interference from Other Sources • un regulated wireless network frequencies shared by other devices and general noise source - Multi-path propagation • radio signal reflects off objects ground, arriving at destination at slightly different times - Wireless Transmission Media • Wireless transmission over unguided media (air) • Decreasing signal strength (distance) • Interference (noise) • Multi-path (echoes) - Microwaves are focused radio waves • Signals travel in a straight line Long distance terrestrial data link stations are typically over 30 miles apart • 1 Wednesday, October 5, 2016 • Must have an unobstructed line of sight - Satellite and Microwave based communication • Good news - Have no right-of-way issues • Lines can be rapidly deployed across difficult terrain • Bad news - Need unobstructed line-of-sight • No physical barriers van exist in between 2


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