Location is null

[razin...@gmail.com]

Dear Colleagues,

I am getting the message "impossible is occured! no location is found for the device!" which is generated from MM1Queue.java. I tried to find the reason behind it but colud not get any luck. Can anyone inform me about what is causing this issue?

Thanks in advance.

Thanks & Regards

Razin Farhan Hussain

[Cagatay Sonmez]

Hi Razin,

It seems there is a problem with your mobility model.

Which mobility model do you use?

If it is NomadicMobility.java, what are the following values in your conf file?

#default config file

simulation_time=?

warm_up_period=?

#mean waiting time in seconds

attractiveness_L1_mean_waiting_time=?

attractiveness_L2_mean_waiting_time=?

attractiveness_L3_mean_waiting_time=?

7 Temmuz 2021 Çarşamba tarihinde saat 01:56:56 UTC+3 itibarıyla razin...@gmail.com şunları yazdı:

[razin...@gmail.com]

Dear Cagatay Sonmez,

Thank you for your reply. The values I have given are mentioned below:

simulation_time=10
warm_up_period=3

#mean waiting time in seconds

attractiveness_L1_mean_waiting_time=3
attractiveness_L2_mean_waiting_time=3
attractiveness_L3_mean_waiting_time=3

[çağatay sönmez]

Dear Razin,

What I suspect is that the average wait times are too short (3 seconds).
Maybe ExponentialDistribution is producing very small values, or even zero.
Could you please increase the mean waiting time values a bit like 30 seconds?

By the way, the time and treeMap variables in the getLocation function of NomadicMobility.java should be inspected to find the root cause.

Best regards,
Cagatay