Establish a 5G end-to-end communication simulation system

[Andy LU]

Hi, everyone!

So far I'm still a newbie to ns3. I want to build a 5G end-to-end communication system including PDCP, RLC, MAC and PHY layers, and study the impact of PDCP buffer size on communication performance through simulation. However, I found that the PDCP function in the lena module and lte module is not perfect, and Excluding cache settings, how should I do it? Can you give me some advice? 

Sincere thanks!

[Andy LU]

I find it really hard to build a complete end-to-end communication system, especially having to design algorithms to improve PDCP buffer size related settings. Is it really a good choice to work on algorithm optimization with ns3, can anyone give some advice? 

[Biljana B.]

It seems to me that you should get familiar with ns-3 and 5G-LENA first. You can search for previous WNS3 workshop tutorials on ns-3 and 5G-LENA. To understand 5G-LENA, it is necessary at least some basic knowledge of ns-3. Please look into the tutorial for ns-3 from previous WNS3 workshops. Once you are familiar with ns-3 you can start with the NR tutorial for the 5G-LENA simulator available here: https://cttc-lena.gitlab.io/nr/cttc-nr-demo-tutorial.pdf. 

Once you do this, and you are able to install correctly ns-3 and 5G-LENA, run examples, log/trace, you can start to tweak PDCP layer, and implement some improvements.