SimuLTE

[fatma.aw...@gmail.com]

Hello,
Can you please tell me how to measure the application layer throughput for device to device communication using LTE?
Any help will be appreciated,
Thanks

[Antonio Virdis]

Hi there,

the application-layer throughput depends only on the application you are using. This said, you need to implement a throughput metric at the receiver side.

A typical way to do this is by storing the sum of packet size received during the simulation; then divide the result by the simulation time in the finish function.

Please note that, if you are also using a non-zero warmup time, you should not consider packet arrived during it, and subtract its value from the simulation duration.

Hope this helps

BR

Antonio

[fatma.aw...@gmail.com]

Hello,

Thanks for your fast reply. I am using the same applications indicated in the omnetpp.ini of d2d ( TCPSessionApp for the transmitter and TCPSinkApp for the receiver). So, I just have to divide the sum of packet size by the simulation time in the finish function of the TCPSinkApp? Or should I add a throughput meter module?

Thank you

[Antonio Virdis]

If you want to have a metric printed out, you also need to create and emit a signal. Please refer to the OMNeT manual for that.

[fatma.aw...@gmail.com]

Thanks a lot for your help.

[fatma.aw...@gmail.com]

Hello Mr. Antonio,

I tried to get the throughput but it is different than the results reported in your paper" performance evaluation of TCP based traffic over direct communications in LTE Advanced".
If I should use the thruputmeter module in the INET framework, could you please tell me how to use it? Sorry if my questions are so simple but i am very new to omnet and I searched a lot about the thruputmeter but I could not find enough documentation on how to use it.

Thank you

[Antonio Virdis]

In the work you are mentioning, we modified the TCPSinkApp from INET, using the technique I described previously.

As a possible cause for the difference in results, you are maybe considering the warm-up period into results. In order to obtain sound measurements you should not count packets received during warm-up, and you should subtract the warm-up time from the total duration.

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Antonio Virdis

[fatma.aw...@gmail.com]

Hello Mr. Antonio,

I have a question regarding the TCP connection between two static D2D UEs communicating in DM and IM.
There are 4 scenarios for data/ACK as mentioned in your paper. For IM/DM and DM/IM, do I have only to change these lines in the omnetpp.ini file
*.eNodeB.d2dCapable = true
*.ueD2D*[0].d2dCapable = true
**.amcMode = "D2D?
Since, there are only 2 configurations for DM/DM and the traditional IM/IM.

Thanks for your help,

[kaouthar ouali]

Dear Fatma,
Could you please send me this .ini file.
I want to enable my D2D UEs to communicate simultaneously in DM and IM modes (no D2D mode selection).

Regards,

[wubin...@163.com]

sorry to bother you. I have some troubles when I install the simuLte on the omnet++. The Inet has been successfully installed on the windows system. But when I build the simuLTE, the compiler said that cannot find -lINET_dbg. Do you have any idea that why this error happened?

在 2017年6月15日星期四 UTC+8上午9:27:58，fatma.aw...@gmail.com写道：

[kaouthar ouali]

Hello, when using simulte, try to use linux system instead of windows.
Hope this help.
Regards,