Degrees of freedom of the interference channel: A general formula
Yihong Wu Shlomo Shamai Sergio Verdú
Proceedings of the IEEE International Symposium on Information Theory, St. Petersburg, Russia, July 2011

We give a  general   formula  for the  degrees  of  freedom  of the K-user real additive-noise  interference channel  involving maximization of information dimension. Previous results are recovered, and even generalized in certain cases with simplified proofs. Connections to fractal geometry are drawn.