After power averaging the response over a small area, we have the following power delay

profile

o

O b.$.$

O c.$.$

O d.$.$

a.$.$

p($($t)=−(20$)=-(20$dBo($($T)+10$)+10$dB($($t−1)+10$-1)+10$dB($($T−2)+0$-2)+0$dB($($t −5))$-5))$

Then the mean excess delay is equal to

6.25$6\mathrm{.}25$ usec

4.38$4\mathrm{.}38$ usec

2.55$2\mathrm{.}55$ usec

8.67$8\mathrm{.}67$ usec