Unstructured P2P Network Coding Based on Improved Chaotic Series
T Colleg · Bulletin of Science and Technology · 2014
In view of the traditional coding method in unstructured P2 P network coding has the high error rate, anti wiretapping and attack ability is weak. An improved Rossler chaotic series coding algorithm was proposed. List decoding method was used. Random number generator was used to construct the Rossler perturbation search data matrix. Using the list de.coding scheme in the sink, and Rossler perturbation search data matrix was used to realize the one by one code system. Gradient descent information was used as unstructured P2 P network weights. Global optimization and intelligent search was realized. Chaotic sequence encryption key was used to realize the sink decoding. Information bandwidth occupancy rate was reduced. Coding vector distribution restriction was reduced. Simulation results show that, the coding algorithm has low bit error rate, it does not need additional secure channel with high communication efficiency. And it can effectively resist the attack of strength pollution, and it is much suitable for unstructured P2 P network secure communication.