Xbee Wi-Fi (s6B) Modulation Scheme
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I have two Wi-Fi XBee modules communicating in Ad-Hoc mode (IBSS) and have data sending between them both in AT and API mode. What I'm trying to to determine is the modulation and coding scheme (MCS) used when the modules are connected to one another.
I know that when two wi-fi devices are connected to one another that the connection rate is determined with the highest data rate supported by each product which in this case is 802.11n. When the signal gets weaker, the MCS drops down to a lower MCS. From Digi's user manuel: https://www.digi.com/resources/documentation/Digidocs/90002180/#reference/r_specs_rec_sensitivity.htm%3FTocPath%3DTechnical%2520specifications%7C_____4 - the MCS is determined by the data rate.
The XCTU software displays the link margin so if I knew the RSSI I could work out the recievers sensitvity and therefore the MCS but unfortunatley XCTU displays the RSSI and link margin as the same value. (RSSI = LM + sensitivity)
Does anyone know how I can calulate the modulation scheme or find out the data rate of a received API frame?
wifi xbee
asked Nov 19 at 18:39
Craig Blackburn
11
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I have two Wi-Fi XBee modules communicating in Ad-Hoc mode (IBSS) and have data sending between them both in AT and API mode. What I'm trying to to determine is the modulation and coding scheme (MCS) used when the modules are connected to one another.
I know that when two wi-fi devices are connected to one another that the connection rate is determined with the highest data rate supported by each product which in this case is 802.11n. When the signal gets weaker, the MCS drops down to a lower MCS. From Digi's user manuel: https://www.digi.com/resources/documentation/Digidocs/90002180/#reference/r_specs_rec_sensitivity.htm%3FTocPath%3DTechnical%2520specifications%7C_____4 - the MCS is determined by the data rate.
The XCTU software displays the link margin so if I knew the RSSI I could work out the recievers sensitvity and therefore the MCS but unfortunatley XCTU displays the RSSI and link margin as the same value. (RSSI = LM + sensitivity)
Does anyone know how I can calulate the modulation scheme or find out the data rate of a received API frame?
wifi xbee
asked Nov 19 at 18:39
Craig Blackburn
11
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I have two Wi-Fi XBee modules communicating in Ad-Hoc mode (IBSS) and have data sending between them both in AT and API mode. What I'm trying to to determine is the modulation and coding scheme (MCS) used when the modules are connected to one another.
I know that when two wi-fi devices are connected to one another that the connection rate is determined with the highest data rate supported by each product which in this case is 802.11n. When the signal gets weaker, the MCS drops down to a lower MCS. From Digi's user manuel: https://www.digi.com/resources/documentation/Digidocs/90002180/#reference/r_specs_rec_sensitivity.htm%3FTocPath%3DTechnical%2520specifications%7C_____4 - the MCS is determined by the data rate.
The XCTU software displays the link margin so if I knew the RSSI I could work out the recievers sensitvity and therefore the MCS but unfortunatley XCTU displays the RSSI and link margin as the same value. (RSSI = LM + sensitivity)
Does anyone know how I can calulate the modulation scheme or find out the data rate of a received API frame?
wifi xbee
asked Nov 19 at 18:39
Craig Blackburn
11
I have two Wi-Fi XBee modules communicating in Ad-Hoc mode (IBSS) and have data sending between them both in AT and API mode. What I'm trying to to determine is the modulation and coding scheme (MCS) used when the modules are connected to one another.
I know that when two wi-fi devices are connected to one another that the connection rate is determined with the highest data rate supported by each product which in this case is 802.11n. When the signal gets weaker, the MCS drops down to a lower MCS. From Digi's user manuel: https://www.digi.com/resources/documentation/Digidocs/90002180/#reference/r_specs_rec_sensitivity.htm%3FTocPath%3DTechnical%2520specifications%7C_____4 - the MCS is determined by the data rate.
The XCTU software displays the link margin so if I knew the RSSI I could work out the recievers sensitvity and therefore the MCS but unfortunatley XCTU displays the RSSI and link margin as the same value. (RSSI = LM + sensitivity)
Does anyone know how I can calulate the modulation scheme or find out the data rate of a received API frame?
wifi xbee
wifi xbee
asked Nov 19 at 18:39
Craig Blackburn
11
asked Nov 19 at 18:39
Craig Blackburn
11
asked Nov 19 at 18:39
Craig Blackburn
11
asked Nov 19 at 18:39
Craig Blackburn
11
asked Nov 19 at 18:39
Craig Blackburn
11
11
add a comment |
add a comment |
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