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REPEATERS
Prepared by:
Teñoso, Mary Lou F.
REPEATERS
WIRELESS REPEATER
• A wireless repeater (also called wireless range extender) takes an
existing signal from a wireless rou...
Uses
• When in an area with no Hot Spots.
• In an area with much interference.
– Interference can be caused by many enviro...
SIMPLE BLOCK DIAGRAM OF A REPEATER
Antenna
Feed line
RECEIVER

DUPLEXER

Receive Audio
And Control Signals

Phone Line or ...
Drawbacks
• Since only one wireless device can transmit at
once, wireless transmissions are doubled (router
to repeater an...
Connectivity
• Some wireless range extending devices
connect via a USB port. These USB adapters
add Wi-Fi capability to de...
Compatibility
• There are wireless range extending devices that conform to
all 802.11 protocols. Most 802.11 compliant dev...
Alternatives
• Most wireless repeaters (or range extenders) are purpose built, but
certain wireless routers can be flashed...
SETTING UP A WIRELESS REPEATER
How Can the Range of a Wi-Fi Network
Be Boosted?
•
•
•
•
•

Reposition your router
Add an access point
Add a bi-directiona...
CONCLUSION
• Many people are using wireless router to wireless
router repeating to enhance their wireless home
network ran...
QUESTIONS
Wireless repeaters
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Wireless repeaters

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Wireless repeaters

  1. 1. REPEATERS Prepared by: Teñoso, Mary Lou F.
  2. 2. REPEATERS
  3. 3. WIRELESS REPEATER • A wireless repeater (also called wireless range extender) takes an existing signal from a wireless router or access point and rebroadcasts it to create a second network. When two or more hosts have to be connected with one another over the IEEE 802.11 protocol and the distance is too long for a direct connection to be established, a wireless repeater is used to bridge the gap. It can be a specialized stand alone computer networking device. Also, some WNICs optionally support operating in such a mode. Those outside of the primary network will be able to connect through the new "repeated" network. However, as far as the original router or access point is concerned only the repeater MAC is connected. So safety features must be enabled on the wireless repeater as well. Wireless repeaters are commonly used to improve signal range and strength within homes and small offices.
  4. 4. Uses • When in an area with no Hot Spots. • In an area with much interference. – Interference can be caused by many environmental factors such as; microwaves (such as from a microwave oven), metal appliances or metallic coating or an impeded line of sight. • When the distance between the computer and the router (wireless signal) is too great for the internal wireless network interface card to receive. • When networking in an environment with interference and multiple computers or Hubs.
  5. 5. SIMPLE BLOCK DIAGRAM OF A REPEATER Antenna Feed line RECEIVER DUPLEXER Receive Audio And Control Signals Phone Line or Patch TRANSMITTER Transmit Audio And Control Signals REPEATER CONTROLLER/DVR PATCH
  6. 6. Drawbacks • Since only one wireless device can transmit at once, wireless transmissions are doubled (router to repeater and then repeater to client versus just router to client), and so: • Wireless throughput is reduced by at least 50%. • Wireless interference (e.g., with other networks on the same channel) is at least doubled.
  7. 7. Connectivity • Some wireless range extending devices connect via a USB port. These USB adapters add Wi-Fi capability to desktop PCs and other devices that have standard USB ports. USB supports not only the data transfers required for networking, but it also supplies a power source so that these adapters do not require electrical plugs.
  8. 8. Compatibility • There are wireless range extending devices that conform to all 802.11 protocols. Most 802.11 compliant devices are backwards compatible, however, 802.11a runs at 5 GHZ and requires an access point capable of 5 GHz operation. 802.11ac is the most recent and third-generation Wi-Fi standard for wireless home networking. 802.11ac equipment is backward compatible with 802.11n, 802.11g or 802.11b gear. • An older range extender will not be able to repeat the signal of a newer generation router. Security encryption compatibility also matters and must be at the same level of compatibility for the signal to be extended. For example an older range extender which supports WEP and WPA will not be able to boost a WPA2 signal from a router.
  9. 9. Alternatives • Most wireless repeaters (or range extenders) are purpose built, but certain wireless routers can be flashed with custom firmware such as DD-WRT to give them a 'range extender' option. • A better option for extending wireless coverage is to configure a secondary box as a wireless access point, with a wired connection between a LAN port on the secondary box and a LAN port on the primary box (wireless router). If Ethernet wiring is not an option, a good alternative is powerline networking -- AV500 technology is inexpensive and good. Wireless extender kits consisting of a powerline adapter module (connect to the wireless router) and a wireless extender module (integrated powerline networking and wireless access point) are available (e.g., D-Link DHP-W311AV
  10. 10. SETTING UP A WIRELESS REPEATER
  11. 11. How Can the Range of a Wi-Fi Network Be Boosted? • • • • • Reposition your router Add an access point Add a bi-directional wi-fi amplifier Upgrade the antenna Add a wi-fi repeater
  12. 12. CONCLUSION • Many people are using wireless router to wireless router repeating to enhance their wireless home network range, and eliminate Wi-Fi dead spots created by gaps in their wireless network. • Whichever method you choose in creating your perfect wireless home network coverage, wireless router extending is a convenient way to expand your home network without having to mess around with crimpers and cables.
  13. 13. QUESTIONS

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