COMPUTER NETWORKING

WIRELESS NETWORKS AND MOBILE IP

WIRELESS NETWORKS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A method that sends two or more frames in a single transmission.
A
frame aggregation
B
multi-frame transmission
C
multiple input multiple output (MIMO)
D
None of the above
Explanation: 

Detailed explanation-1: -Frame aggregation is a key enhancement at the MAC later in which multiple frames are concatenated and then sent in one channel access. In error free channels the 802.11n MAC service data unit aggregation (A-MSDU) performs better than the MAC protocol data unit aggregation (A-MPDU)due to its smaller headers.

Detailed explanation-2: -Differences between A-MSDU and A-MPDU A-MSDU is better suited to environments where larger than normal, but still fairly small lumps of data need to go together in a fairly clean RF environment. The larger overhead in A-MSDU results in is best minimized this way.

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