potential disadvantages to using a wireless network
Designing A Wireless Network
... on Wireless 18Apply Wireless Technologies to HorizontalApplicationsAlong with the manyvertical markets andapplications, you canapply wireless technologies to horizontalapplications, meaning ... wirelessly to the hospital. Using Wireless in the Financial World Wireless applications can keep an investor informed real-time of theticker in the stock market, allowing trades and updates to be made ... together to sharememory, software, and information, and to find a way for them to com-municate together. Network technology to this point consisted of a mainframe that stored the information and...
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How To Set Up Wireless Network Security ppt
... Hex). ASCII (American Standard Code for Information Interchange): the standard for assigning numerical values to the set of letters in the Roman alphabet and typographic characters. HEX (Hexadecimal): ... method (example: MD5 needs CHAP), please go to “Authentication” page. TLS can use the default values. Part 3: 802.1x and WPA Part 3-1: RADIUS Server Installation WPA implementation requires ... Step 1: Certificate Authority Installation 1. Logon into your Windows 2000 server as Administrator. 2. Go to Start > Control Panel > Add or Remove Programs. 3. Select “Add or remove Windows...
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designing a wireless network phần 1 pot
... technology.Around the same time that Faraday worked with electromagnetism,an American professor named Joseph Henry became the first person to transmit a practical electrical signal. As a watchmaker, he constructedbatteries ... together to sharememory, software, and information, and to find a way for them to com-municate together. Network technology to this point consisted of a mainframe that stored the information and ... phones, pagers, and wireless Personal DigitalAssistants (PDAs) have become so commonplace in our lives that it iseasy to forget that ten years ago, they were a rarity. But wireless commu-nications...
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designing a wireless network phần 2 pptx
... antenna.This voltage signal is carried away from theantenna by a cable.Now let’s consider a piece of metal that does not have a conductivepath to ground and is acting as an antenna.The magnetic and electricalwaves ... transmitting end, a cable is hooked to anantenna.The signal travels down the cable and into the antenna.Thisgenerates an oscillating voltage potential in the antenna, which in turngenerates ... designing antennas to meet certain needs.Some antennas are designed to broadcast a signal in all directions,known as omnidirectional antennas; other antennas are designed to focustheir beam in a specific...
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designing a wireless network phần 3 ppt
... antennas.Planar Array AntennasPlanar array antennas are similar in concept to Yagi antennas except allelements, both active and parasitic, lie in the same plane.This results in a flat antenna that can be mounted ... mounted flat on a wall, yet still have the proper-ties and gain of a directional antenna. Figure 2.17 shows a planar arrayantenna.www.syngress.comFigure 2.17 Planar Array Antenna and Associated ... Directional Beam PatternSide ViewPlanar Phased Array AntennaDirection of BeamAntennaGDirectional BeamMultiple Antenna Elements Shown with Dipole AntennasTop ViewSteerable BeamPlanar Array...
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designing a wireless network phần 4 pptx
... applicationthat dynamically assigns IP addresses to network devices.This applicationeliminates at least two difficulties for a network administrator. First, iteliminates the need to statically address ... optimalpath include considerations such as path distance, load, link bandwidth,delay, and reliability. Metrics with such granularity provide a more accu-rate evaluation of available paths than ... ofSightRPFAUFAUFactory152_wan_04 6/22/01 3:35 PM Page 120 94 Chapter 3 ã TCP/IP and the OSI Modelcompany.You support voice and data, which means that you might have a Frame Relay network, an ATM network, ...
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designing a wireless network phần 5 pot
... also canauthenticate a wireless device against a list of MAC addresses.This listcould reside locally on the AP, or the authentication could be checkedagainst a database of allowed MACs located ... Optical wireless has very high data rates over short distances(1.25 Gbps to 350 meters). Full duplex transmission providesadditional bandwidth capabilities.The raw data rate available isup to a ... cells actually vary quite a bit due to several fac-tors, including the topography of the land, the anticipated number ofcalls in a particular area, the number of man-made objects (such as thebuildings...
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designing a wireless network phần 6 potx
... sep-arate and distinct channels within that wireless topology. Similarly, adja-cent channel spacing and active channel separation play an importantrole when planning and deploying a wireless network. These ... theirgreatest weaknesses.The same can be said when examining the attributesof a wireless network. Both mobility and ease of access are touted assome of the greatest characteristics available when using ... areunique and beneficial to implementation—as well as those that makethis medium cumbersome and awkward to manage. Equally important isthe ability to leverage these attributes and apply them to meet...
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designing a wireless network phần 7 ppt
... 244 Chapter 7 ã Designing a Wireless Industrial Network: Retail Case Studyglass panes to let natural light filter into the store.An escalator, whichenables customers to move to the second story, ... warehouse also con-tains the company office, where the administrators run the store’saccounting software and track employee database information.As Figure7.2 shows, the warehouse also contains ... connected to the office PCs. It is a stand-alone PC with a separate software package that is not tied to the company accountingsystem.Handheld devices will enable the employees to respond to customerpages.These...
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designing a wireless network phần 8 ppsx
... academic areas ofthe campus. At this time, only three academic areas are addressed.Theplanned network must be easy to adapt as these areas of study increase orchange. For example, the Math and ... beinstalled on every floor of each academic building.These LANs aretotally exclusive to the teaching staff.The staff network is maintained as a separate network from the student network to help maintain ... ConnectivitySW/RTRSW/RTRSW/RTRSW/RTRSW/RTRStaff APStaff APStaff APStaff AP100Mb100Mb100Mb100MbElevatorShaftWiringClosetStudent APStudent APStudent APStudent APOptical Link to Liberal ArtsOptical Link to Biological SciencesAP100Mb100Mb100Mb100MbStaff...
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