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Wireless Versus Wired Network Components By: Steven R. Yasoni & Dario Strazimiri.

Wireless Versus Wired Network Components By: Steven R. Yasoni & Dario Strazimiri. Wireless Networks. Radio Waves are used rather than traditional wires.

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Wireless Versus Wired Network Components By: Steven R. Yasoni & Dario Strazimiri.

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  1. Wireless Versus Wired Network Components By: Steven R. Yasoni & Dario Strazimiri.

  2. Wireless Networks • Radio Waves are used rather than traditional wires. • With this technology it allows user to access other devices to share files and information on the fly rather than having to connect the computer or devices together with wires. • It starts off implementing a router that is capable of performing a wireless capability and connecting this router or access point to a Modem that provides your internet from your ISP with an Ethernet cable. • You can extend wireless networking throughout your office, store, or campus by placing additional wireless access points in various locations • The additional access points extend the wireless signal's range and strength over a wider area.

  3. Wireless & Wired Network Example

  4. Wireless Router Adapters 802.11G 802.11N 802.11AC

  5. 802.11G • This is the third modulation standard for wireless LANs. • This uses a 2.4 GHZ frequency just as its older counter part 802.11 B used. • This next step from B increased the maximum speeds that can be achieved up to 54 Mbps. • 802.11g hardware is fully backwards compatible with 802.11b hardware. • The draw back is 802.11g suffers from the same interference as 802.11b in the 2.4 GHz device range. Devices that use this range are: microwave ovens, bluetooth devices, baby monitors and digital cordless telephones.

  6. 802.11N • Its purpose is to improve network throughput over the two previous standards 802.11A & 802.11G with a significant increase in the maximum data rate speeds from 54 Mbps to 600 Mbps. • Although this does not mean you will achieve 600 Mbps, Allot of factors are to take into account. • It uses multiple input multiple output, which means it uses multiple antennas at the transmitter & receiver that help increase communication performance.This increases the speed and range of the adapter. • Offers enhanced QoS (Quality of Service), which basically involves prioritization of network traffic. • Supports 802.11b, 802.11g, 802.11a, and 802.11n clients

  7. 802.11AC • This standard was developed in 2011 and finalized 2013. • It has maximum speeds of 1300 Mbps and uses only the 5 GHZ frequency spectrum. • Because of the 5GHZ frequency you have a less chance of interference. • 802.11ac is dubbed 5G Wi-Fi. • 802.11ac is backwards compatible with 802.11B , G, & N. • A key factor of 802.11ac makes beam forming a core part of its spec. Rather broadcasting out wireless signal equally in all directions, Wi-Fi with beam forming detects where devices are and intensifies the signal in their direction • Greater range with additional Antennas.

  8. Wireless Security • Varies different wireless security methods. • Three major are : WEP, WPA, WPA2. • Wireless security helps prevent Bandwidth stealers, and most importantly people from accessing your information on your network.

  9. WEP Security Method • Wired Equivalent Privacy (WEP) • This was the original encryption protocol that was developed for wireless networks. • As what WEP stands for, WEP was designed to provide the same level of security as wired networks. • WEP has many security flaws, and is difficult to configure, as well it is easily broken.

  10. WPA Security Method • Wi-Fi Protected Access. • Introduced as a security advancement over WEP while the 802.11i wireless security standard was being implemented. • Most WPA implementations use a “pre-shared key “(PSK), commonly referred to as WPA Personal, and the Temporal Key Integrity Protocol (TKIP, pronounced tee-kip) for encryption. • Most commonly used for home networking. • WPA Enterprise uses an authentication RADIUS server to generate keys or certificates.

  11. WPA 2 Security Method • This is based on the 802.11i wireless security standard, which was completed in 2004. • The most significant enhancement to WPA2 over WPA is the use of the Advanced Encryption Standard (AES) for encryption. • The security provided by AES is sufficient (and approved) for use by the U.S. government to encrypt information.

  12. Wireless Pro / Cons

  13. Wired Networking Hardware • CAT5 • CAT5e • CAT6 • CAT6a • Fiber Optic

  14. CAT5 and CAT5e CAT5 • made to support theoretical speeds of 10Mbps and 100Mbbps • length of 100 meters (328 feet) between two devices CAT5e • Also known as Category 5 enhanced • made to support 1000 Mbps “gigabit” speeds • length of 100 meters (328 feet)

  15. CAT6 and CAT6a CAT6 • capable of 10-Gigabit speeds in some cases • also bumps the cable's rate frequency to 250MHz • maximum length is 100m or 328ft CAT6a • also known as Augmented Category 6 • also a standardized cable for Gigabit Ethernet • CAT6a has an up to 500 MHz in bandwidth and has improved alien crosstalk characteristics • maximum length is 100m or 328ft

  16. Fiber Optic • glass fiber strands covered with an insulated casing • send and receive communication signals using light pulses • they are not vulnerable to any type of electrical interference that can interrupt or interfere with signals • have the ability to send terabytes of data in a second There are two main types of fiber optic cables. • multi-mode fiber optic cable • used for short distances • can go up to 1800 feet • capacity to transfer up to 10 gigabits of data per second • single-mode fiber optic cable • This type of cable is more expensive • can transmit 10 gigabits per second • has the ability to go up to 37 miles For most office or home networks the multi-mode fiber optic cable is better and cheaper since there’s no need to cover extreme distances.

  17. References: [1]http://www.cisco.com/cisco/web/solutions/small_business/resource_center/articles/work_from_anywhere/wireless_networking/index.html [2]http://compnetworking.about.com/cs/wireless80211/a/aa80211standard.htm [3]http://www.speedguide.net/faq_in_q.php?qid=374 [4]http://compnetworking.about.com/od/wirelessfaqs/f/howfastis80211g.htm [5]http://www.zdnet.com/blog/igeneration/wired-vs-wireless-security-vs-speed/624 [6] http://technet.microsoft.com/en-us/magazine/2005.11.securitywatch.aspx [7]http://www.computerweekly.com/feature/Wired-vs-wireless-in-the-enterprise [8]http://reviews.cnet.com/best-wireless-networking-devices/ [9]http://blogs.cisco.com/home/wireless_networks_vs__wired_which_network_is_more_secure/ [10]http://www.lifehacker.com.au/2013/04/ask-lh-whats-the-difference-between-cat5-cat5e-and-cat6-cables/ [11]http://compnetworking.about.com/cs/homenetworking/a/homewiredless.htm [12]http://web.archive.org/web/20121005021505/http://www.bb-elec.com/tech_articles/NTRON_cat5e_cable_wiring_schemes.asp

  18. Continue References: [13] http://donutey.com/ethernet.php [14]www.zdnet.com/blog/igeneration/wired-vs-wireless-security-vs-speed/624 [15]http://news.cnet.com/8301-17938_105-57485724-1/home-networking-explained-part-1-heres-the-url-for-you/ [16]http://webpage.pace.edu/ms16182p/networking/wiredvswireless.html [17]http://compnetworking.about.com/od/networkcnetwo/g/fiberopticcable.htm [18]http://www.howstuffworks.com/fiber-optic4.htm [19] http://www.citrusmicro.com/Wireless-G-vs-Wireless-N-s/523.htm [20] http://www-personal.umich.edu/~csev/hng/ [21]http://www.wacra.org/PublicDomain/IJCRA%20xixi_iv_pg370-382Kortz-Nath.pdf [22]http://csweb.winona.edu/CSConference/2007conference.pdf#page=33 [23]http://digitalcommons.mcmaster.ca/dissertations/AAINR28148/ [24]http://www.dell.com/downloads/global/shared/broadcom_802_11_g.pdf [25]http://www.intel.com/content/www/us/en/standards/802-11-wireless-lan-standards-study.html

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