18

Descrição

cwna CWNA FlashCards sobre 18, criado por rowelld em 12-10-2015.
rowelld
FlashCards por rowelld, atualizado more than 1 year ago
rowelld
Criado por rowelld mais de 8 anos atrás
4
2

Resumo de Recurso

Questão Responda
802.11n Defines High Throughput (Clause 20) MIMO
Max Data Rate 600 Mbps
Three Modes HT (Greenfield Mode) Non-HT HT Mixed
Greenfield Mode No nearby legacy stations using same frequency. Cannot communicate with legacy stations.
Non-HT Sends frames in legacy 802.11a/g format. Must use 20 MHz
HT Mixed Uses HT Protection mechanism Requires use of RTS/CTS
STBC Space-Time Block Coding Transmitting info on two or more antennas.
TxBF Transmit Beamforming. Phase adjustments
40 MHz Intolerant Management frame bit. Forces 802.11n AP to switch to 20 MHz channel.
Guard Interval Used between OFDM symbols. To prevent inter symbol interference.
A-MSDU Aggregate MAC Service Data Unit. Combines multiple frames into a single frame transmission.
A-MPDU Aggregate MAC Protocol Data Unit.
Power Management Spatial Multiplexing Power Save (SM Power Save) Power Save Multi Poll (PSMP)

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