Before revision:  We overcome this challenge by extending a newly developed methodology based on (min,x) network calculus and provide a closed-form expression for the end-to-end delay violation probability over a cascade of heterogeneous buffered wireless fading channels.
After revision:  We overcome this challenge by extending a newly developed methodology based on (min,x) network calculus and provide a closed-form expression for the end-to-end delay violation probability over a cascade of buffered wireless fading channels.