The dynamic

real-time stable compression period probabilistically based on dynamic path compression model was calculated.A stability module of path compression techniques（SMPC） was proposed which could restrain the blindness for path compression efficiently and improve the stability of routes

by using based on GPS and SMPC-MS based on the compression coverage to lessens the ephemeral short-cuts and multiple short-cuts.The simulation results show that the path compression techniques by SMPC achieve low control overhead and end-to-end delay compared with both AODV and PCA.It is a generic and efficient stability module of path compression techniques for on-demand ad hoc routing.