A question about CSMA/CA
Posted 31 October 2005 - 01:43 AM
Posted 31 October 2005 - 05:18 PM
CSMA/CA is a solution to a problem in wireless networks that doesn't exist in ethernet. With ethernet, it is easy for one node that attempts to transmit to detect if another node tries to transmit at the same time. With wireless, since the reception antena is right next to the transmission antena, when a node tries to transmit, it cannot detect any other simultaneously attempted transmissions because the only signal it can see is its own. CSMA/CA somehow overcomes this problem - I'm not familiar with it, so I don't know how. As I mentioned earlier, ethernet doesn't have this problem. A node can easily detect a collision, and from there, a different set of protocols exist to overcome it.
Long story short, it looks like CSMA/CA is only for wireless networks.
Posted 31 October 2005 - 06:21 PM
Posted 31 October 2005 - 06:29 PM
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