Comunicació presentada en la 44th Asilomar Conference on Signals, Systems and Computers, celebrada els dies 7, 8, 9 i 10 de novembre de 2010 a Pacific Grove, Califòrnia (EUA), organitzada per la Naval Postgraduate School (Monterey, CA) i l’ATK Mission Research (Monterey, CA).

The purpose of this paper is to examine (1) some of the models commonly used to represent fading,/nand (2) the information-theoretic metrics most commonly used to evaluate performance over those models. We raise the question of whether these models and metrics remain adequate in light of the advances that wireless systems have/nundergone over the last two decades. Weaknesses are pointed/nout, and ideas on possible fixes are put forth.

This work was supported by AGAUR (Ref. 2009 SGR 70) and by the Spanish MICINN (Ref. TEC2009-13000).