Figures 2 and 3 show the configuration of survivable Fi Wi access network with ISCW in uniform scenario and random scenario respectively when this simulated urban area is 100% covered. The number of ISCWs in these two scenarios is both 24 and the split ratio of splutter is 1:32. From these two figures, we can see that our proposed method can find the optimal configuration solutions for survivable Fi Wi access network, so as to get the complete coverage of subscribers.