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CSMA/CA

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CSMA/CA

(Carrier Sense Multiple Access/Collision Avoidance) A transmission technology that attempts to avoid collisions rather than detect them as in CSMA/CD. Used in wireless Ethernet (802.11) and Apple's LocalTalk, when a device needs to transmit, it listens to the network (senses the carrier) and waits for it to be free.

In 802.11, it then waits a random period of time and transmits. If the receiver gets the frame intact, it sends back an ACK to the sender.

In a LocalTalk network, when the network is free, the sending device broadcasts a tiny control packet indicating that it wants to transmit. All other stations wait until the data packet is transmitted. See 802.11 and CSMA/CD.



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11b Compliant Protocol CSMA/CA Communication Method Direct Sequence Spread Spectrum Speed 11/5.
Hitachi Cable Joins Sylantro's Alliance Solution Program as a ... by Business Wire
3 standard, the XSI141 does not suffer from the typical inefficiencies of CSMA/CA protocols such as the IEEE802.
XtremeSpectrum Delivers Industry's First Commercial Ultra-wideband ... by Business Wire
Packaged Content CD-ROM: device driver/utility software Media Access CSMA/CA Protocol TCP/IP Transfer Rate 6 to 54Mbps Range Up to 300 feet (range varies depending on the environmental conditions) Recommended Number of users Up to 16 users Supplied Accessories AC adapter, power cord, Ethernet cable Data Interfaces 10/100Base Ethernet, (WAN) RJ-45, 10/100Base Ethernet, (LAN) RJ-45, 802.
Sony Creates New Option for Accessing Broadband Content Wirelessly by Business Wire
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