What risks and safeguards are associated with wireless communication? What is “war driving” or “war flying”? Are you comfortable (or would you use) a wireless “hot spot” to do computer work? What safeguards might you use in accessing an unprotected (public) wireless communications? Are you more at risk using a wireless connection via laptop or a connection via a smart phone? Transmissions over wireless networks can be intercepted by any suitable device within the transmission radius. If a network
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Abstract The Third-Generation (3G) wireless technologies offer wireless web‚ SMS‚ MMS‚ EDGE‚ WCDMA‚ GPRS etc. 4G is a packet switched technology‚ uses bandwidth much more efficiently‚ allowing each user ’s packets to compete for available bandwidth. It solves the non-standardization problems associated with 3G. Data transfer rate will be 20 to 100 Mbps‚ which is 10 to 50 times than 3G and 10-20 times faster than ADSL. Operating frequency range will be 3 to 10 GHz and the IPv6 protocol will be
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Introduction This lab will introduce you to wireless spectrum analysis and supports this week’s TCO. TCO 7: Given a situation requiring a wireless network solution‚ propose an appropriate design for a wireless network using radio frequency based methods. Background Wireless signals are invisible to the human eye. To see these signals‚ a tool such as a spectrum analyzer is required. In this lab‚ you will learn how to use a common spectrum analyzer‚ as you would in your career‚ to locate potential
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Abstract—A telephone based wireless system for the remote operation of the home appliances is proposed. The telephone‚ acting as a remote controller‚ generates a DTMF signal corresponding to each dialed digit which is converted to a BCD code by the Telephone interface circuit. This is given as input to the transmitter module which is then used to control various home appliances through a receiver module. Data processing stages of the transmitter and receiver modules have been implemented
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Wireless network standards Avery IT/241 06/11/2011 Sherry Desbrough Wireless Network Standards When it comes to communications‚ broadcasting signals‚ and staying within guidelines governed by the FCC and the IEEE here in the United States a system of standards have been developed in order to help the communications and information industry streamline their efforts to work together instead of against each other. Some people feel this is a good practice and conductive toward
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April 4th‚ 2006 A Technical Report: Wireless Sensor Networks and How They Work Prepared for Ann Holms University of California Santa Barbara Prepared by Ethan Culler-Mayeno University of California Santa Barbara Abstract Wireless sensor networks are a budding technology with the potential to change the way that we live. This report explains the workings of each network as a system of tiny computers called motes and the parts of the network. Furthermore‚ this report goes on to
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MADS6638 Unit 5 Wireless Security Objectives By the end of this unit‚ the participant will be able to: * Understand the need for wireless security * Check wireless connectivity from a public area * Understand war chalking and evil-twin intercept * Recognize the setting up of a wireless network in the workplace * Describe packets and how they work * Change the IP address and password for the router/switch * Enhance wireless security by encoding WEP and changing
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My research is to determine if electricity moves better through thick wires or through thin wires. For this experiment I used two size D batteries‚ two flashlight bulbs‚ one 6.5 inch thin steel wool piece‚ one 6.5 inch thick steel wool piece‚ two 2 inch pieces of straw‚ and some electrical tape. Steel wool is a material made from thin fibers of steel made into a pad. (http://www.wisegeek.com/l-what-is-steel-wool.htm) There are many uses for steel wool. It can be used for sanding furniture‚ removing
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EC2043 WIRELESS NETWORKS UNIT I PHYSICAL AND WIRELESS MAC LAYER ALTERNATIVES PART – A (2 Marks) 1. Name five design consideration in selecting a modulation scheme for a wireless networks. 2. Why is out of band of radiation an important issue in designing modulation scheme? 3. Why is PPM used with IR communication instead of PAM? 4. Name four space diversity techniques. 5. What are the advantages of high efficiency voice band modems
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4G Wireless Networks By Ja’Kedrick Pearson Professor Darlene Ringhand CIS 500 February 03‚ 2013 4G Wireless Networks Mobile phones have become a crucial part of our daily life nowadays. Everyone‚ from teenagers to old men‚ carry a personal cell phone. They are a vital part of today’s on-demand‚ on-the-go society. Mobile phones today have changed dramatically from the mobile phones of the past. From the huge brick-like mobile phones of 1995 to sleek and stylish smartphones we
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