wireless LAN was so costly that it was just used as an alternative to the places where the cabling was difficult or impossible. Recent developments included industry specific solutions and proprietary protocols‚ but were replaced by various versions of IEEE 802.11. In 2009‚ 802.11 were replaced by 802.11n. It operates in both 2.4GHz and 5GHz bands at maximum data transfer rate of 600Mbits/s. The newly developed dual band allows communication of data and avoids the crowded 2.4GHz band which is shared by
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other devices without the cost and complexity of cable infrastructures has driven the rapid growth in the wireless market over the last few years.Wi-Fi is one of the wireless technology which appeared early in the wireless market. Wi-Fi is based on the IEEE 802.11 wireless local area network (WLAN) specification. Actually it was designed to be used indoors at close range for example home user and office environment. The main goal of Wi-Fi technology is to provide service for mobile computing device like
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CHAPTER Introduction to Wireless LANs CWNA Exam Objectives Covered: Identify the technology roles for which wireless LAN technology is an appropriate application: Data access role Extension of existing networks into remote locations Building-to-building connectivity Last mile data delivery Flexibility for mobile users SOHO Use Mobile office‚ classroom‚ industrial‚ and healthcare 1 In This Chapter The Wireless LAN Market Applications of Wireless LANs 2 Chapter 1
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The coming upgrade may deliver speeds of up to 1 gigabit per second by improving on the effeciency of existing technology‚ according to Electronista. Don’t expect a revolution or a vast change in the way you use wireless. The IEEE 802.11ac standard‚ set to be in draft form by 2011‚ will mainly work with the current technology powering 802.11a. The new standard will continue to work on the 5.0Ghz band‚ but will provide larger channels for data throughput. Whereas current technology
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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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Different from IEEE 802.11 where a station can transmit only one frame after winning the channel‚ the TXOP scheme allows a station gaining the channel to transmit the frames available in its buffer successively provided that the duration of transmission does not exceed
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Question 1 Which IEEE wireless networking protocol was ratified in 2009 and has a maximum defined data rate of 600 Mb/sec? a. 802.11a b. 802.11b c. 802.11g d. 802.11n Question 2 Within the Windows UI‚ what option will you need to select to delete a wireless network profile? a. Clear this network b. Delete this network c. Disconnect from this network d. Forget this network Question 3 Windows 8.1 has a featured called __________ that can make the process of moving between networks and connecting
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HOMEWORK Wireless Networking Report on Wireless Technology in Other Sectors and Comparing Access Points Mansour Rizoev 125119 ANSWER TO QUESTION 1: REPORT ON WIRELESS TECHNOLOGY IN OTHER SECTORS (WIRELESS IN THE MILITARY) The aim of this report to research how to use wireless in a different areas: military‚ biologist ‚ logistics‚ finance‚ etc. Wireless becomes an integral part of life‚ and it uses in cafes‚ in trucks‚ in buildings‚ in undergrounds‚ in airs etc. Why we use wireless
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Exposure of Wireless Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Signal Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Evolving IEEE Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Establish Wireless
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operate worldwide. 5. Draw the frame format of IEEE 802.11 physical layer using FHSS. The frame format of IEEE 802.11 physical layer using FHSS are Sync (80) SFD (16) PLW (12) PSF (4) HEC (16) MPDU variable SFD – Start Frame Delimiter PLW- PDU Length Word PSF – PLCP Signalling Field HEC – Header Error Check MPDU – MAC Protocol Data Unit 6. Draw the frame format of IEEE 802.11 physical layer using DSSS. The frame format of IEEE 802.11 physical layer using DSSS Sync 128 bits
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