摘要：There are a wide variety of terminal devices in wireless mesh networks. In order to manage the heterogeneous networks efficiently and to solve the mismatching problem between the physical network and its P2P overlay, a membership management protocol for the P2P overlay in wireless mesh networks is proposed— BA-gossip protocol. It combines scale-free network model (BA model) with gossip scheme. Decentralization and locally probability-preferential attachment are two key mechanisms in BA-gossip protocol. The BA-gossip protocol is abstracted into two mathematical models. To analyze the protocol performance in an ultimate state, BA-gossip growing network model is considered. To reflect the performance of real networks, BA-gossip evolving network model is considered. Through mean-field approach, BA-gossip growing network model is proved stable and scale-free. BA-gossip evolving network model is also proved stable by the same method. The simulation results show that both growing and evolving network models do not change the stability of BA model. The BA-gossip growing network model is more fault-tolerant than traditional BA model in complicated P2P network case. The simulation results also imply that both models solved the mismatching problem to a certain extent and are more appropriate in managing heterogeneous wireless mesh networks
