A company is deploying a new wireless network and requires 800Mbps network throughput.
Which of the following is the MINIMUM configuration that would meet this need? used. With MIMO, multiple antennas are used for transmission and reception. MIMO was available in 802.11nbut its capabilities have been extended in 802.11ac. minimum bandwidth of 800Mbps. Two antennas and 80 MHz channel bandwidth provides a bandwidth of
A.
802.11ac with 2 spatial streams and an 80MHz bandwidth
B.
802.11ac with 3 spatial streams and a 20MHz bandwidth
C.
802.11ac with 3 spatial streams and a 40MHz bandwidth
D.
802.11ac with 4 spatial streams and a 160MHz bandwidth
Explanation:
Spatial streaming is used in wireless communications where multiple-input-multiple-output(MIMO) is being
802.11ac supports a mandatory 80 MHz channel bandwidth for stations (vs. 40 MHz maximum in 802.11n), 160
MHz available optionally and more (up to 8) special streams.
A single antenna and 80 MHz channel bandwidth provides a bandwidth of 433Mbps. In this question, we need a
867Mbps and therefore meets the requirement.