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Ad Hoc network has the characteristics of Construction of the independent network, decentralization, dynamic changes in network topology, limited bandwidth and energy, etc. The introduction of multimedia services proposed QOS multicast routing needs for Ad Hoc network. Most of existent Ad Hoc network QOS multicast routing protocols use determinate routing, which has poor adaptability to dynamic changes of network topology. In this paper, after deep study the basic ant colony algorithm, the improved ant colony algorithm is applied in the establishment and maintenance of network multicast routing process. A new Ad Hoc network QOS multicast routing protocol based on ant colony algorithm is proposed in this paper. NS-2 Simulation results show that the protocol can effectively choose the path according to link quality, create and maintain the multicast tree, thus achieving the aims of low latency, balanced flow and reducing congestion.
Date of Conference: 4-6 Dec. 2010