logging in or signing up Wi-Fi Technology ni3as Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 2292 Category: Education License: All Rights Reserved Like it (2) Dislike it (0) Added: February 26, 2011 This Presentation is Public Favorites: 3 Presentation Description No description available. Comments Posting comment... By: sravaniboyapati6 (8 month(s) ago) plz send this ppt at sravaniboyapati6@gmail.com Saving..... Post Reply Close Saving..... Edit Comment Close By: jaintripti (9 month(s) ago) plz send me this ppt as it is very hlpful in ma prsntatn at jaintripti21@yahoo.com Saving..... Post Reply Close Saving..... Edit Comment Close By: lovingtony (12 month(s) ago) this site help me alot Saving..... Post Reply Close Saving..... Edit Comment Close By: kanthetikranthi (15 month(s) ago) sir i am impressed with your slides,please forward documentation to kanthetikranthi@gmail.com thanking you................... Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Slide 1: TechnologySlide 2: Presented By Shinde Nitin AshokSlide 3: TABLE OF CONTENTS Introduction Wi-Fi Technologies Wi-Fi Architecture Wi-Fi Network Elements How a Wi-Fi Network Works Wi-Fi Network Topologies Wi-Fi Configurations Applications of Wi-Fi Advantages/ Disadvantages of Wi-FiSlide 4: INTRODUCTION Wireless Technology is an alternative to Wired Technology, which is commonly used, for connecting devices in wireless mode. Wi-Fi (Wireless Fidelity) is a generic term that refers to the IEEE 802.11 communications standard for Wireless Local Area Networks (WLANs). Wi-Fi Network connect computers to each other, to the internet and to the wired network .Slide 5: THE Wi-Fi TECHNOLOGY Wi-Fi Networks use Radio Technologies to transmit & receive data at high speed : IEEE 802.11b IEEE 802.11a IEEE 802.11gSlide 6: IEEE 802.11b Appear in late 1999 Operates at 2.4GHz radio spectrum 11 Mbps (theoretical speed) - within 30 m Range 4-6 Mbps (actual speed) 100 -150 feet range Most popular, Least Expensive Interference from mobile phones and Bluetooth devices which can reduce the transmission speed.Slide 7: IEEE 802.11a Introduced in 2001 Operates at 5 GHz (less popular) 54 Mbps (theoretical speed) 15-20 Mbps (Actual speed) 50-75 feet range More expensive Not compatible with 802.11bSlide 8: IEEE 802.11g Introduced in 2003 Combine the feature of both standards (a,b) 100-150 feet range 54 Mbps Speed 2.4 GHz radio frequencies Compatible with ‘b’Slide 9: ELEMENT OF A Wi-Fi NETWORK Access Point (AP) - The AP is a wireless LAN transceiver or “base station” that can connect one or many wireless devices simultaneously to the Internet. Wi-Fi cards - They accept the wireless signal and relay information.They can be internal and external.(e.g PCMCIA Card for Laptop and PCI Card for Desktop PC.) Safeguards - Firewalls and anti-virus software protect networks from uninvited users and keep information secure.Slide 10: HOW A Wi-Fi NETWORK WORKS? Basic concept is same as Walkie talkies. A Wi-Fi hotspot is created by installing an access point to an internet connection. An access point acts as a base station. When Wi-Fi enabled device encounters a hotspot the device can then connect to that network wirelessly. A single access point can support up to 30 users and can function within a range of 100 – 150 feet indoors and up to 300 feet outdoors. Many access points can be connected to each other via Ethernet cables to create a single large network.Slide 11: Wi-Fi NETWORK TOPOLOGIES AP-based topology (Infrastructure Mode) Peer-to-peer topology (Ad-hoc Mode) Point-to-multipoint bridge topologySlide 12: AP BASED TOPOLOGY The client communicate through Access Point. BSA-RF coverage provided by an AP. ESA-It consists of 2 or more BSA. ESA cell includes 10-15% overlap to allow roaming.Slide 13: PEER-TO-PEER TOPOLOGY AP is not required. Client devices within a cell can communicate directly with each other. It is useful for setting up of a wireless network quickly and easily.Slide 14: POINT-TO-MULTIPOINT BRIDGE TOPOLOGY This is used to connect a LAN in one building to a LANs in other buildings even if the buildings are miles apart. These conditions receive a clear line of sight between buildings. The line-of-sight range varies based on the type of wireless bridge and antenna used as well as the environmental conditions.Slide 15: Wi-Fi CONFIGURATIONSSlide 16: Wi-Fi CONFIGURATIONSSlide 17: Wi-Fi APPLICATIONS Home Small Businesses or SOHO Large Corporations & Campuses Health Care Wireless ISP (WISP) TravellersSlide 18: ADVANTAGES Mobility Easy of Installation Good Flexibility Cost Reliability Security Use unlicensed part of the radio spectrum Roaming Speed is high.Slide 19: LIMITATIONS Interference Degradation in performance High power consumption Limited rangeSlide 20: THANK YOU You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Wi-Fi Technology ni3as Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 2292 Category: Education License: All Rights Reserved Like it (2) Dislike it (0) Added: February 26, 2011 This Presentation is Public Favorites: 3 Presentation Description No description available. Comments Posting comment... By: sravaniboyapati6 (8 month(s) ago) plz send this ppt at sravaniboyapati6@gmail.com Saving..... Post Reply Close Saving..... Edit Comment Close By: jaintripti (9 month(s) ago) plz send me this ppt as it is very hlpful in ma prsntatn at jaintripti21@yahoo.com Saving..... Post Reply Close Saving..... Edit Comment Close By: lovingtony (12 month(s) ago) this site help me alot Saving..... Post Reply Close Saving..... Edit Comment Close By: kanthetikranthi (15 month(s) ago) sir i am impressed with your slides,please forward documentation to kanthetikranthi@gmail.com thanking you................... Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Slide 1: TechnologySlide 2: Presented By Shinde Nitin AshokSlide 3: TABLE OF CONTENTS Introduction Wi-Fi Technologies Wi-Fi Architecture Wi-Fi Network Elements How a Wi-Fi Network Works Wi-Fi Network Topologies Wi-Fi Configurations Applications of Wi-Fi Advantages/ Disadvantages of Wi-FiSlide 4: INTRODUCTION Wireless Technology is an alternative to Wired Technology, which is commonly used, for connecting devices in wireless mode. Wi-Fi (Wireless Fidelity) is a generic term that refers to the IEEE 802.11 communications standard for Wireless Local Area Networks (WLANs). Wi-Fi Network connect computers to each other, to the internet and to the wired network .Slide 5: THE Wi-Fi TECHNOLOGY Wi-Fi Networks use Radio Technologies to transmit & receive data at high speed : IEEE 802.11b IEEE 802.11a IEEE 802.11gSlide 6: IEEE 802.11b Appear in late 1999 Operates at 2.4GHz radio spectrum 11 Mbps (theoretical speed) - within 30 m Range 4-6 Mbps (actual speed) 100 -150 feet range Most popular, Least Expensive Interference from mobile phones and Bluetooth devices which can reduce the transmission speed.Slide 7: IEEE 802.11a Introduced in 2001 Operates at 5 GHz (less popular) 54 Mbps (theoretical speed) 15-20 Mbps (Actual speed) 50-75 feet range More expensive Not compatible with 802.11bSlide 8: IEEE 802.11g Introduced in 2003 Combine the feature of both standards (a,b) 100-150 feet range 54 Mbps Speed 2.4 GHz radio frequencies Compatible with ‘b’Slide 9: ELEMENT OF A Wi-Fi NETWORK Access Point (AP) - The AP is a wireless LAN transceiver or “base station” that can connect one or many wireless devices simultaneously to the Internet. Wi-Fi cards - They accept the wireless signal and relay information.They can be internal and external.(e.g PCMCIA Card for Laptop and PCI Card for Desktop PC.) Safeguards - Firewalls and anti-virus software protect networks from uninvited users and keep information secure.Slide 10: HOW A Wi-Fi NETWORK WORKS? Basic concept is same as Walkie talkies. A Wi-Fi hotspot is created by installing an access point to an internet connection. An access point acts as a base station. When Wi-Fi enabled device encounters a hotspot the device can then connect to that network wirelessly. A single access point can support up to 30 users and can function within a range of 100 – 150 feet indoors and up to 300 feet outdoors. Many access points can be connected to each other via Ethernet cables to create a single large network.Slide 11: Wi-Fi NETWORK TOPOLOGIES AP-based topology (Infrastructure Mode) Peer-to-peer topology (Ad-hoc Mode) Point-to-multipoint bridge topologySlide 12: AP BASED TOPOLOGY The client communicate through Access Point. BSA-RF coverage provided by an AP. ESA-It consists of 2 or more BSA. ESA cell includes 10-15% overlap to allow roaming.Slide 13: PEER-TO-PEER TOPOLOGY AP is not required. Client devices within a cell can communicate directly with each other. It is useful for setting up of a wireless network quickly and easily.Slide 14: POINT-TO-MULTIPOINT BRIDGE TOPOLOGY This is used to connect a LAN in one building to a LANs in other buildings even if the buildings are miles apart. These conditions receive a clear line of sight between buildings. The line-of-sight range varies based on the type of wireless bridge and antenna used as well as the environmental conditions.Slide 15: Wi-Fi CONFIGURATIONSSlide 16: Wi-Fi CONFIGURATIONSSlide 17: Wi-Fi APPLICATIONS Home Small Businesses or SOHO Large Corporations & Campuses Health Care Wireless ISP (WISP) TravellersSlide 18: ADVANTAGES Mobility Easy of Installation Good Flexibility Cost Reliability Security Use unlicensed part of the radio spectrum Roaming Speed is high.Slide 19: LIMITATIONS Interference Degradation in performance High power consumption Limited rangeSlide 20: THANK YOU