Mikrotik Wireless NV2

[Kurlec]

Hi Guys,

So at this stage we are getting 30-35Mbps on nv2 with 25 connected customers in a interference free area, now without any additional nv2 downsteam settings. on nstreme we are getting around 40-45Mbps with the same connected customers, i have been curious if this is the limitation for mikrotik PtMP? we are using the mANTBox 19s with ROS 6.36.3 we have not upgraded the AP as we had some issues with DFS in interference areas and 6.36.3 seems to be the most stable at the moment but this is not my question.

i would like to know if i were to split the wlan1 into lets say 3x VWlans would i be able to achieve 90Mbps on nv2? since the 20mhz band is actually able to handle 144mbps or is it because the 2x2 mimo does not allow more customers to communicate with the sector at once thus limiting the flow of traffic to around 30-35Mbps on nv2?

We have a Cambium 450Medusa with 14x14 MU-MIMO and we have 40 customers running 10Mbps lines each doing 300-350Mbps during peak hours and the sector does not even limit out yet. now i know MU-MIMO has a big affect on this but im wondering if theres a better way to improve performance on Mikrotik PtMP without any hardcore changes HW/FW related?

We have a mANTBox 19s with 2x2 MIMO with 25 customers limiting at 30-35Mbps only with customers with 4Mbps packages and this means that 8-10 customers receive their full 4Mbps then the rest struggle to reach what they pay for

[krafg]

You are running an old version of RouterOS. Check if with newer versions you have your speed improved.

Regards.

[bpwl]

So at this stage we are getting 30-35Mbps on nv2 with 25 connected customers in a interference free area, now without any additional nv2 downsteam settings. on nstreme we are getting around 40-45Mbps with the same connected customers, i have been curious if this is the limitation for mikrotik PtMP? we are using the mANTBox 19s with ROS 6.36.3 we have not upgraded the AP as we had some issues with DFS in interference areas and 6.36.3 seems to be the most stable at the moment but this is not my question.

Difficult to comment without a bit more technical information. Some remarks … “interference free area” versus “issues with DFS interference” , what is it now? You could have problems with false positive radar detect due to unknown interference (even reflections of your own signal). 30-35Mbps might be some limitation in the case of payload data rate, bidirectional, 20 MHz channel width, 2x2 chains. But why should you use that in 5 GHz interference free area? And ROS 6.45.6 is my stability favorite.

i would like to know if i were to split the wlan1 into lets say 3x VWlans would i be able to achieve 90Mbps on nv2? since the 20mhz band is actually able to handle 144mbps or is it because the 2x2 mimo does not allow more customers to communicate with the sector at once thus limiting the flow of traffic to around 30-35Mbps on nv2?

Think how wifi works, you can sell the air-time in one channel only once. Multiple VirtualWLAN or SSID will do no good. Even multiple AP’s want help. Also make a distinction between the interface data rate, and the payload data rate, which is typically 50% (can vary from 15% to 80% with UDP streaming), and the fact that the wifi is half duplex. 70 Mbps on a 144 Mbps interface rate would be a very good outcome. 70 Mbps unidirectional, 35 Mbps bidirectional. (TCP always has a bi-directional part, the small ACK package with huge overhead). Go to 802.11ac , 20 MHz, 2x2, MCS07 and you get almost the same.

We have a Cambium 450Medusa with 14x14 MU-MIMO and we have 40 customers running 10Mbps lines each doing 300-350Mbps during peak hours and the sector does not even limit out yet. now i know MU-MIMO has a big affect on this but im wondering if theres a better way to improve performance on Mikrotik PtMP without any hardcore changes HW/FW related?

Well in 5GHz it is quite common to use 40 MHz channels, with 2x2 and MCS09 encoding, you get 400 MHz interface rate. My measurements show 140Mbps payload bidirectional with UDP, with NV2. (40+130 with TCP) Nothing to complain about. I enhanced this x3 by using 3 AP’s on different 40 MHz channels. The option of going wider than 40 MHz depends on your environment and signal quality. I will only do this when needed.

We have a mANTBox 19s with 2x2 MIMO with 25 customers limiting at 30-35Mbps only with customers with 4Mbps packages and this means that 8-10 customers receive their full 4Mbps then the rest struggle to reach what they pay for

Wow 25x4Mbps = 100 Mbps. One 40 Mhz channel on 2x2 would probably be enough. You don’t need a $7.349 unit. Also read their MU-MIMO solution paper: "Range of sector throughput improvement What is the realistic sector throughput improvement offered by the
cnMedusa technology in PMP 450m? PMP 450m can communicate with up to seven subscribers in a group, but the
expected throughput improvement is up to three times that of PMP 450 (or PMP 450i), depending on the specific
deployment. "