Need to understand the data rate for different MCS for 802.11?

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Jumaa Salman Chiad Popular answer

Please see

Article Performance Evaluation of DSR, OLSR and ZRP using NETSIM Simulator

Jumaa Salman Chiad

Shubham Gupta

With the knowledge of MCS index and bandwidth of the channel data rate is set in the following manner

1: Gets the number subcarriers that are usable for the given bandwidth of the medium.

2: Gets the Number of Bits per Sub Carrier (NBPSC) from selected MCS

3: Number of Coded Bits Per Symbol (NCBPS) = NBPSC*Number of Subcarriers

4: Number of Data Bits Per Symbol (NDBPS) = NCBPS*Coding Rate

5: Physical level Data Rate = NDBPS/Symbol Time (4micro sec for long GI and 3.6 micro sec for short GI)