“…L total,s,h (u) [11,12] represents the total propagation path-loss suffered by the transmitted field during transmission between Tx to Rx. The corresponding TD transmitted field through the building or wedge structure is given as e RX;s;h ðtÞz e inc ðtÞ r total *G total;s;h ðtÞ*l total;s;h ðtÞ (2) with '*' representing the convolution operator. G total,s,h (t) and l total,s,h (t) [11,12] are TD counterparts of T total,s,h (u) and L total,s,h (u)…”