Calculation method of 802.11ac device negotiation rate
2023-06-30 04:04:44
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Network Topology
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Problem Description
Calculation method of 802.11ac device negotiation rate
Process Analysis
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Solution
Example: Calculation method of 802.11ac device negotiation rate for one stream
80MHz bandwidth supports 250 effective subcarriers, including 234 data subcarriers
Each subcarrier carries 8 bits, the coding rate is 5/6, Short-GI is turned on, and the symbol time is 3.6us. Substitute these parameters into the formula:
Negotiated rate = number of subcarriers x number of coded bits per subcarrier x number of spatial streams x code rate/symbol time
=(234*8*1*5/6)/3.6
=1560bit/3.6us
=433.33bit/us
=433.33Mbit/s