Abstract:

The topology of opportunistic network has strong time varying characteristic and the relationship between nodes is too complex to be depicted by the traditional mathematical model. Employing the principals of the fuzzy system, a packet forwarding strategy with fuzzy control is proposed to dynamically evaluate the relationship strength between nodes according to multi-dimensional status parameters, control the packet forwarding according to the perceived network status and professional experience, and effectively avoid the blindness of packet forwarding. The numerical simulation results show that the proposed strategy can dramatically improve the delivery ratio and reduce the delivery delay, while slightly increase the delivery overhead.