In order to solve the limit of route in Ad Hoc networks to that there must be at least a full path and to realize safety and sharing of data,load balance of node storage,etc.a dynamic routing algorithm based on node density was proposed.A resource sharing mechanism based on service evaluation management was put forward for sharing cache resources in the networks,which could provide safe and good services when the densities of nodes are different.In the mechanism,when the mobile node sends communication requ...