TELECOMMUNICATIONS SYSTEMS
COMMUNICATION WIRELESS COMPUTING DEVICES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
8 MIMO streams
|
|
|
40 MHz bonded channels
|
|
|
160 MHz bonded channels
|
|
|
4 MIMO strream
|
Detailed explanation-1: -The band from Channel 36 (center frequency 5, 180 MHz) to Channel 48 (5, 240 MHz) is known as U-NII 1, while channels 52 (5, 260 MHz) to 64 (5, 320 MHz) comprise U-NII 2. Both are available for Wi-Fi, and they can be used for two 80-MHz channels or a single 160-MHz channel.
Detailed explanation-2: -802.11ac uses wider bandwidth, MU-MIMO and beamforming technology to improve wireless speed and coverage.
Detailed explanation-3: -The 802.11ac or 802.11ac Wave 2 standard supports the following channel bandwidths: 20 MHz, 40 MHz, 80 MHz, 160 MHz (contiguous), and 80+80 MHz (non-contiguous).
Detailed explanation-4: -802.11ac supports wide channel bandwidths from 20 MHz to 160 MHz, which also brings challenges to channel management.
Detailed explanation-5: -Channel bonding increases the data rate because data rate is directly proportional to channel bandwidth. 802.11a/b/g networks use a single 20 MHz channel. 802.11n networks can use a 40 MHz channel. 802.11ac Wave 1 allows for 80 MHz channels, while 802.11ac Wave 2 introduces 160 MHz channels.