Abstract
This paper introduces a constrained QoS multicast routing algorithm in Ad hoc (CQMRA). The key idea of proposed algorithm is to construct the new metric-entropy and select the stability path with the help of entropy metric to reduce the number of route reconstruction so as to provide QoS guarantee in Adhoc. The simulation results show that the proposed approach and parameters provide an accurate and efficient method of estimating and evaluating the route stability in Adhoc .