An efficient clustering method for unstructured mobile peer-to-peer networks

Nowadays, the hierarchical architectures based on super peers have been proposed over mobile peer to peer (MP2P) networks. However, the management cost of the mobile network topology is high. In this paper, we propose a clustering method to construct hierarchical MP2P architectures. The proposed method groups the mobile peers through three aspects such as the maximum connection time, the minimum hop count and the number of the connected peers. The connection times between the connected peers can be determined by the location, velocity and communication range of each mobile peer. Since the maximum connection time of the connected peers are considered, the network topology is relatively stable. Therefore, the management cost of the network is decreased and the success rate of contents search is increased. Experiments have shown that our proposed method outperforms the existing schemes.