The medium access control ( MAC ) enables the transmission of MAC frames through the use of the physical channel.
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The conference focuses mainly on the physical layer and medium access control layer ( PHY and MAC ) of wireless systems.
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The TSCH mode was introduced in 2012 as an amendment ( IEEE 802.15.4e ) to the Medium Access Control ( MAC ) portion of the IEEE 802.15.4 standard.
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Point to Multipoint wireless networks employing directional antennas are affected by the hidden node problem ( also called hidden terminal ) in case they employ a CSMA / CA medium access control protocol.
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The network type depends on such factors as the specific architecture ( for instance cellular ) and the channel or medium access control ( MAC ) protocol, which controls the channels and, hence, the communicating structures of the network.
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To accomplish this, it uses an existing standard which defines a suitable physical layer and medium access control, through which the desired performance can be met, and it adds to it a convergence layer to merge both architectural efforts.
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This layer is broken into two sub-layers; the Logical Link Control ( LLC ) on the upper half, which does the error checking and the Medium Access Control ( MAC ) on the lower half, which gets the data on and off the wire.
8.
The type of network model is a combination of factors such as the network architectural organization ( cellular, " ad hoc ", cognitive radio ), the medium access control ( MAC ) protocol being used, the application running on it, and whether the network is mobile or static.
9.
Also as a B . Sc . student, he was involved in the design of the first Portuguese personal computer, ENER 1000, in the early 1980s, and later, during his M . Sc ., developed the network interface card for this computer, which implemented a token bus medium access control protocol entirely developed by him.
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