how can I get poly2trellis source code?

Hello, I'm running an OFDM code on matlab, but it couldn't recognize the poly2trellis function. Can anyone tell me how can I get the code of this function? Thank you

[nikhita]

poly2trellis requires CommunicationsToolbox.

tPoly = poly2trellis(constrlen,genpoly);

Answer 1

[Chloe Mica]

Turning the convolutional code polynomial into a functional MATLAB trellis grid of expression? CreativePeptides

[Tas H]

Thank you for your answer

Answer 2

[Steven Lord]

The POLY2TRELLIS function is part of Communications System Toolbox. You will need this toolbox to use this function.

[Tas H]

Thank you for your answer! It took me a bit to see that !