Theoretical rate calculation of Wi-Fi 6 80211ax
How to calculate the rate of Wi-Fi 6? First, guess from the beginning to the end:
The transmission rate will be affected by the number of spatial streams. The number of bits each subcarrier can transmit is the number of coded bits per subcarrier. The higher the coding rate, the better. How many effective subcarriers are used to carry the number of subcarriers for data transmission? The above characteristics are proportional to the speed of the whole machine. The larger the speed, the higher the speed of the whole machine. All the improvements around the speed are optimized and improved within this range.
Detailed calculation results are shown in the following figure:
We know the way of calculation, but we don’t understand many of the concepts involved, and we can’t relate them to what we have learned. We sort out this concept through reverse reasoning.
The number of spatial streams: it is determined by the number of antennas of the Wi-Fi device. It is usually identified in the parameters. The value range is an integer between 1 and 4. It usually appears in pairs, 2 or 4.
The number of coded bits per subcarrier: refers to the number of data subcarriers, which is determined by the protocol bandwidth. The frame structure of 11n/AC and 11ax is different, and the number of subcarriers is basically proportional to the bandwidth.
Coding rate: it is determined by the MCS strategy table and is related to modulation mode. For high-order modulation (64/256/1024qam), the code rate is 5 / 6.
Effective subcarrier rate: Because different orders and subcarrier bandwidths affect it, it is only necessary to find the maximum effective subcarrier rate for calculations.
The above is the knowledge explanation of “theoretical rate calculation of Wi-Fi 6 80211ax” brought by Shenzhen HDV Phoelectron Technology Co., Ltd. hope this article can help you to increase your knowledge. Besides this article if you’re looking for a good optical fiber communication equipment manufacturer company you may consider about us.
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