Hi guys,

I'm trying to use Simu5G on my Omnet++ setup and the build crashes every time:

Anybody have any ideas how to debug it?

Thanks Bogdan

Console: "fatal error: too many errors emitted, stopping now [-ferror-limit=] 12 warnings and 20 errors generated. make[1]: *** [Makefile:420: ../out/clang-debug/src/apps/mec/MecApps/MecRequestBackgroundGeneratorApp/MecRequestBackgroundGeneratorApp.o] Error 1 19 warnings and 20 errors generated. 12 warnings and 20 errors generated. make[1]: *** [Makefile:420: ../out/clang-debug/src/apps/mec/MecApps/MecRequestForegroundApp/MecRequestForegroundApp.o] Error 1 make[1]: *** [Makefile:420: ../out/clang-debug/src/apps/mec/WarningAlert/MECWarningAlertApp.o] Error 1 make[1]: Leaving directory '/c/Users/Bogda/Documents/omnetpp-6.0/samples/Simu5G-1.2.0/src' make: *** [Makefile:2: all] Error 2 "make MODE=debug -j12 all" terminated with exit code 2. Build might be incomplete.

12:45:00 Build Failed. 141 errors, 194 warnings. (took 18s.841ms)"

I modified the number of cars by **.numCars = 100 in simulations\NR\mec\singleMecHost\omnetpp.ini. Then I face some error, since any value greater than 100 gives an error, I searched for 100, and adjusted *.mecHost.maxMECApps.

Next, I tried to adjust the number of cars, I could reach 266, but then it would report an error, I began to suspect that it was the IP address, but since 266 is greater than 255, it might be another problem.

could you please give me some advice? I want to run **.numCars = 400 by one station I also add **.hasRNISupport = false

Hello,

I'm testing an scenario with multiple MEC hosts and a couple of MEC Orchestrators and I need to instantiate a high amount of MEC applications. For a few number of Apps, I would just create an app descriptor in JSON with the characteristics of the App and then import it with the rest of the app's parameters:

*.car[*].app[1].typename = "UEWarningAlertApp"
*.car[*].app[1].deviceAppAddress = "car["+string(ancestorIndex(1))+"]"
*.car[*].app[1].deviceAppPort = 4500
*.car[*].app[1].startTime = 1s										
*.car[*].app[1].stopTime = 30s										

However, doing this for more than a handful of apps is tedious and error-prone. I was planning on doing it recursively, creating a loop cycle and changing the app parameters and start-stop time for each of the apps, but I don't think this can be done in the .ini file.

Could you give me some advice on how to instantiate a high number of MEC apps recursively please?

Thanks a lot for your time and answers.

Hello all,

I am Building Simu5g on Windows10, OMNeT++6.0, and INET4.4.0. I have the same issue as #6 and #54. I tried the first two options to install Simu5g:

1. Download and install Simu5G directly from the OMNeT++ IDE and
2. Download the source code and build Simu5G manually I also tried to clone the code from the GitHub repository. But, I still have the makefile errors. I have tried both solutions suggested in #6, but they didn't work.

Thank you in advance for your help.

Best regards, Parva

Hi, I've been trying to build simu5G over the OMNeT++ and INET Framework. I was able to successfully install those two but I'm having issues when I try to build Simu5G over them and I don't understand why those errors occur. Posting a screenshot here, please guide me with this.

There were about a lot of errors of the same nature. I'm doing this on a MAC OS 12.3 Intel Silicon Chip. I have also tried on windows 11 earlier, and was stuck at the same stage where SImu5G build was failing. Maybe not the same error though.

Dear Authors,

I have tried several times to get vector values by simulating "CbrSender" and "CbrReceiver" at my application layer. I was unable to get continuous values of cbrGeneratedThroughtput:vector and cbrReceivedThroughtput:vector. But cbrFrameDelay:vector has continues values. I am a new user of Simu5G therefore I cannot provide any detailed information. I have simulated CBR mentioned in: dualConnectivity_multicell demo

Surya

Hi thanks for your good work. I recently tested 2 examples under simu5g, but I am not sure about the latency of 5G MEC is correct.

Test

I tested in the following two cases

simulations\NR\mec\multiMecHost
simulations\NR\mec\singleMecHost

and the 5G MEC latency is

In average, the upstream delay is 10ms, while the downstream is 5ms

Question

So my questions are

1. Why are the delays different for upstream and downstream?
2. Packet size doesn't seem to have a significant effect on latency, is this normal?
3. When I adjust the message frequency, the MEC MAC layer will report an error, why is this happening?

Any suggestions would be greatly appreciated!

Whenever I make Simu5G, it always report error: unable to load'../out/clang-debug/src/libsimu5g_dbg.dll.a': No such file or directory,my omnetpp version is 6.0pre11 and inet version is 4.3.2.

Hi All,

First of all I realize that I'm probably making a mistake somewhere but I can't figure out why.

I have the following simulation: omnetpp.ini

[General]
image-path=../../../images
output-scalar-file-append = false
sim-time-limit=20s
**.routingRecorder.enabled = false

############### Statistics ##################
output-scalar-file = ${resultdir}/${configname}/${repetition}.sca
output-vector-file = ${resultdir}/${configname}/${repetition}.vec
seed-set = ${repetition}
**.vector-recording = false

################ Mobility parameters #####################
# *

**.mobility.constraintAreaMaxX = 1000m
**.mobility.constraintAreaMaxY = 1000m
**.mobility.constraintAreaMinX = 0m
**.mobility.constraintAreaMinY = 0m
**.mobility.constraintAreaMinZ = 0m
**.mobility.constraintAreaMaxZ = 0m
**.mobility.initFromDisplayString = false

############### Number of Resource Blocks ################
**.numBands = 50 # this value should be kept equal to the number of RBs

############### Transmission Power ##################
**.ueTxPower = 26
**.eNodeBTxPower = 40
**.targetBler = 0.01
**.blerShift = 5  

############### IPv4 configurator config #################
*.configurator.config = xmldoc("./demo.xml")


#------------------------------------#
# Config Standalone
#
# Topology configuration for the exemplary scenario for NR Standalone deployment
#
[Config Standalone]
network = simu5g.simulations.NR.networks.SingleCell_Standalone
sim-time-limit=20s

############### e/gNodeB configuration #################
*.gnb.mobility.initialX = 450m
*.gnb.mobility.initialY = 300m

############## UE configuration ##################
*.numUe = 3

# connect the UE's NIC to the corresponding serving eNB
*.ue[*].macCellId = 1
*.ue[*].masterId = 1
*.ue[*].nrMacCellId = 1
*.ue[*].nrMasterId = 1

# UE position
*.ue[*].mobility.initialX = 450m
*.ue[*].mobility.initialY = 350m
#------------------------------------#


[Config UdpSend]
extends=Standalone

# one UDP application for each user
*.ue[*].numApps = 1


# the amount of UDP applications on server should be equal to (numUEs)*(ue[*].numApps) 
*.server.numApps = 1

#============= Application Setup =============
*.server.app[0].typename = "inet.applications.udpapp.UdpEchoApp"
*.server.app[0].localPort = 1000

*.ue[1..2].app[0].typename = "inet.applications.udpapp.UdpEchoApp"
*.ue[1..2].app[0].localPort = 1000

*.ue[0].app[0].typename = "ether_tic_toc.apps.udp_send.UdpSendApp"
*.ue[0].app[0].destAddress = "224.0.0.10" 
*.ue[0].app[0].destPort = 1000
#------------------------------------#

With the following network config: demo.xml

<config>
    <interface hosts='*' address='10.x.x.x' netmask='255.x.x.x'/>
    <multicast-group hosts="ue[*]" interfaces="cellular" address="224.0.0.10"/>
</config>

And ether_tic_toc.apps.udp_send.UdpSendApp is a UDP app that sends a single packet to the port and destination

But When I run it it crashes at LteAmc::existTxParams() with cRuntimeError("LteAmc::existTxparams(): Unrecognized direction")

Then I tried adding

**.usePreconfiguredTxParams = true
**.d2dCqi = 7
**.amcMode = "D2D"

to my config.ini But then it looks like the packet is never sent or received

I'm using the latest commit of Simu5G, INET 4.4.0 and Omnet 6

Hello,

I have downloaded and tested Omnet++ 6.0 rc2 and then downloaded and tested INET 4.3 in a Windows 11 machine. I have copied the SIMU5G zip file and extracted right next to INET 4.3 folder. I then imported it using the File -> Import -> Existing project into Worspace method. The issue arises when I try to execute some of the examples as I would need to build the whole project (at least once I think). After a while compiling I get the following errors:

The location error in detail is the following:

Description incomplete type 'const Binder' used in type trait expression Simu5G-1.2.0 line 722, external location: C:\Users\34663\Downloads\omnetpp-6.0rc2\omnetpp-6.0\tools\win32.x86_64\mingw64\include\c++\10.3.0\type_traits C/C++ Problem

I would appreciate any advice or answer regarding this issue. Thanks in advance

Hi, I couldn't make the project because I couldn't link Simu5G with INET project on both IDE and command line. I can run INET examples properly. I'm following this guide for installation.

Here is my folder structure:

• omnetpp-6.0pre12
  • samples
    • inet4
    • Simu5G-1.2.0

1. When I run make command, it gives below error.

2. When I change inet4.3 to inet4 in below line of Makefile in Simu5G-1.2.0 folder

   makefiles:
   	    @cd src && opp_makemake --make-so -f --deep -o simu5g -O out -KINET_PROJ=../../inet4.3 -DINET_IMPORT -I. -I$$\(INET_PROJ\)/src -L$$\(INET_PROJ\)/src -lINET$$\(D\)
   
   

   and re-run make makefiles and make, it gives below error.

To sum up, I couldn't figure out how to make the project.

Thanks in advance!

Dear developers,

Is it possible to configure the frame structure? I know that we can configure the slot structure in UL and DL symbols, but can we for example configure a frame like DDDSU?

Thank you in advance Gustavo Cainelli

hello!

In order to obtain the real-time ue location in LtePhyUe.cc ，I write code ueCoord=LtePhyBase::getCoord(); And update once when receiving airframe（I set period to 0.01 seconds），print EV<<"time"<<NOW<<"**********ue["<<nodeId_<<"]Coord"<<ueCoord<<endl;

However, when I run the simulation and select the fast mode, the location update of the ue becomes very chaotic； When I click run, the location of the ue is updated without problem；

The following is the location update of the ue I selected for fast： **time****0.73ue[1027]Coord(124.464, 601.216, 0) m ******time0.74ue[1027]Coord(124.818, 601.278, 0) m ******time0.75ue[1027]Coord(124.818, 601.278, 0) m ******time0.76ue[1027]Coord(124.818, 601.278, 0) m ******time0.77ue[1027]Coord(124.818, 601.278, 0) m ******time0.78ue[1027]Coord(124.818, 601.278, 0) m ******time0.79****ue[1027]Coord(124.818, 601.278, 0) m

Next, I choose run： **time****0.02ue[1027]Coord(117.767, 600.035, 0) m ******time0.03ue[1027]Coord(117.866, 600.052, 0) m ******time0.04****ue[1027]Coord(117.964, 600.069, 0) m By the way, let me add that I use the lineMobility;

So I want to ask the professor, have you ever met this situation； What should I do? Do you have any suggestions for me

Hello!

as it is written at the end of README, Simu5G currently (I hope only currently) does not support bearers. It means I can not set resource type for my packets (gbr, dcgbr, ngbr), which is the part of QoS. But at the same time I see some gbr/ngbr getters and setters in StatsCollector classes. Does it mean it is still possible to set RT somehow?

Dear all,

I am working in a project with multiple MecHosts and a time sensitive application. Using as a base the simulation in singleMecHost.ned, I want to be able to measure the delay from the Car to each of the MEC Hosts. As some issues have suggested, the best method to measure the end-to-end delay is using a timestamp over a VoIP application (As the VoIP application example present in SIMU5G). I want to use this same method, but I'm a bit stuck in the implementation.

My question is, is it possible to instantiate the VoIP application into one of the MEC Hosts instead of the traditional server (As done in the examples)?

If so, could you guide me or provide me some example of how to do it?

Thanks in advance for your help.

Hello, I'm having some problems with background traffic generation on base station. I tried your example (simulations/NR/bgTraffic) in two different scenarios, one with 10 background UEs each generates 1000B packet every 10ms, while the other with 200 background UEs each generates 1000MB packet every 10ms. Observing the results I noticed that the uplink delay (statistic cbrFrameDelay:mean in SingleCell_Standalone.server.app[0]) remains substantially the same.

I wonder if this is the right procedure to generate some background traffic at the base station and if the generator uses the same resource blocks of the MAC scheduler as for the UE.

Thanks for your help, Valerio.

Hello,

thank you for the simulator. I do have a problem though. Is it possible to create obstacles that interfere with the radio propagation such as buildings etc.? Especially in higher frequency ranges such as above 25GHz. I am using Simu5G v1.1.0 and don't think I can move to another version at this point. I am also using Veins ans SUMO and as far as I know do the buildings created with SUMO not hinder the radio propagation.

Thanks for your help!