Mathematics relationship between CDL channels and Saleh-Valenzuela model

Hi everyone,

I'm learning to generate a CDL channel through example CDL Channel Model Customization with Ray Tracing, and I also read some papers about Saleh-Valenzuela model for mmWave, and I see they have some things in common, like AoA, AoD,... But I didn't find any Matlab source explaining the mathematics behind the functions related to nrCDLChannel() object.

I am wondering if CDL channel use the Saleh-Valenzuela model? Could you please give me some Matlab sites that explain the mathematical formulas behind that? because I saw different papers have different notations of Saleh-Valenzuela model, and it quite confusing for me as a new learner.

Thanks a lot in advance.

Answer 1

[Ayush]

Hello Thien,

To understand more about the generation of the CDL channel using the object “nrCDLChannel” you can refer to the following documentation:

https://www.mathworks.com/help/5g/ref/nrcdlchannel-system-object.html

The above MathWorks documentation also provides a reference to a technical report explaining the mathematics behind the functions of this object. Please refer to the following link for the technical report:

https://www.etsi.org/deliver/etsi_tr/138900_138999/138901/16.01.00_60/tr_138901v160100p.pdf

Regarding the relationship with the Saleh-Valenzuela model, the CDL models described for link-level evaluations in the technical report are conceptually related to the Saleh-Valenzuela model by depicting their clustered delay lines with different channel profiles for NLOS (Non-Line of Sight) and LOS (Line of Sight) scenarios.

Hope these resources help you in your learning journey!

[Thien Hieu]

Thank you so much for the information.