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signetlabdei / lorawan

An ns-3 module for simulation of LoRaWAN networks
GNU General Public License v2.0
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Packet error rate #34

Closed Prapi123 closed 5 years ago

Prapi123 commented 5 years ago

Hello, Is there already a class defined to calculate packet error rate? I am hoping to calculate packet error rate at each gateway. Is it possible to get number of packet received and number of packet lost at each gateway in case of multiple gateways?

nmatni commented 5 years ago

I don't think that already have such a thing. But you could add a counter in form of a vector, for example, to identify each gw.

Prapi123 commented 5 years ago

Thanks for your Reply. I will try do it in this way.

DvdMgr commented 5 years ago

Is it possible to get number of packet received and number of packet lost at each gateway in case of multiple gateways?

Yes, it is! If you are interested in GW-level statistics, we have methods to compute those in the adr branch, both at the MAC and at the PHY level. Check out the PrintPhyPacketsPerGw method in the lora-packet-tracker.h and lora-packet-tracker.cc files on the adr branch! The adr-example.cc file on that branch, towards the end, has an example of how you can get the packet tracker that was used during simulation and that can be used to print various kinds of statistics.

Prapi123 commented 5 years ago

Hello ,

Thank you for the response. I would like to confirm about one parameter in the method PrintPhyPacketsPerGw (Time startTime, Time stopTime, int systemId) . Is systemId here the address of the gateway? What is the best way to return system id ?

DvdMgr commented 5 years ago

systemId is the System Id of the gateway you are interested in - if you have the Node where the Gateway is installed, you can simply call the GetSystemId method to get it!

kaustubhshrotri commented 5 years ago

Hello,

I would like to know if there is a method to track number of packets sent and received from each enddevices so as to calculate packet error rate at end device level.

Thanks In Advance

DvdMgr commented 5 years ago

Currently this is not implemented, but shouldn't be too hard to do. Right now I don't have much time I can allocate to this, but I can definitely guide you if you want to tackle this!

In case you want to look into this, all packets are tracked in the lora-packet-tracker.cc/.h files. I recommend using the adr branch, as it features the latest version of the packet tracker.

kaustubhshrotri commented 5 years ago

Hi, Thanks for answering. I am working on calculation of packet error rate at end device level using this module. Should I open of new issue or I can post my quetions in this thread?

DvdMgr commented 5 years ago

Best to open another issue to track further developments, so that I can close this one!

Prapi123 commented 5 years ago

Small Information for other users who will be reading this thread in future: You can access id with GetId() method on desired nodes. For me SystemId() would always give 0 for every node. GetId() worked for me