A novel topology construction incentive algorithm(TCI)using reputation is proposed to solve the service migration oriented node incentive problem in wireless ubiquitous environment. First
a hierarchical selection model is established to select the optimal service migration cell and relay for a demand node. Then
an improved method is proposed to accurately calculate the reputation of each cooperation node. Finally
the topology construction algorithm is used to adaptively adjust the topology of the entire network and to effectively promote the node cooperation. Simulation results and comparisons with the random probability selection based incentive algorithm and the shortest distance selection based incentive algorithm show that the service migration rate of TCI improves respectively by 43% and 106%. Comparisons with the direct reputation based incentive algorithm and the integrated reputation based incentive algorithm show that TCI motivates noncooperation nodes to change their attitudes before the 3rd period. These results indicate that TCI performs outstandingly in terms of service migration and node incentive.
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