It depends on the specific application requirements. For example, some researchers incorporate the fuzzy concepts with AODV for better energy efficiency. You can refer to the following paper.
You can add the fuzzy concepts as per your design concepts. To have energy efficiency routing you can modify any existing algorithm for the same. If you wish you could control the node mobility using such method.
Thanks all for your kind reply. But my doubt is..... I am using fuzzy concepts to improve one of the routing protocols. I have designed the algorithm too, but is not able to verify my algorithm as i don't know how to simulate my logic in NS-2
Thanks Alfonso for your kind reply. I have simulated my work using fuzzy toolbox of MATLAB. Now i want same work to be verified by network simulator i.e. NS-2. Any suggestions u can give that how i can verify my results by NS-2?
Thanks Afonso for ur help. Is it possible for u to share ur work so that I can get better idea that how n where you have applied fuzzy concept and finally how u r able to verify ur result?