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Throughput VS RSSI

New Contributor II
When I conducted tests using P300, the results showed below.
RSSI is high yet Throughput is low
RSSI is low(not high) yet Throughput is high

I sometimes got these results.
In my understanding, RSSI relates to Throughput.

Why does this happen? What is the relationship between RSSI and Throughput?

Thank you

New Contributor II
Hi Kat,

There are several methods to send data from AP to client in 802.11 standard,such as

the data throughput also depend on the SNR level, AP calculate the RSSI and SNR to select a modulation method to send data

RSSI is high yet Throughput is low
there could be high RSSI but if there are low SNR the AP will select less complex modulation method that could effect the through put.

RSSI is low(not high) yet Throughput is high

There could be high SNR, so may the AP select the bit high complex modulation resulting high throughput.

For more details please feel free to drop a mail.

Thanks and regards,
Harekrishna Mondal

Community Admin
Community Admin
Hi Kat,

Refer below article.
Syamantak Omer

Syamantak Omer | Sr.Staff TSE | CWNA | CCNA | RASZA | RICXI

I am sorry I can't open this one. It shows me that "We're sorry, but something went wrong.We've been notified about this issue and we'll take a look at it shortly."

Hi Syam,

The article stands to the point, please convey my appreciation to the owner. This is what Pierson has been saying for a long time, and as it is documented it can be retrieved whenever we want.

Abilash PR.