摘要

In view of the low delivery ratio and the high latency of the conventional routing algorithms without considering more factors in opportunistic networks, a novel Hybrid Strategy based Routing Algorithm (HSRA) for opportunistic networks is put forward. The algorithm primarily introduces four factors: the percentage of remaining buffer space, the percentage of residual energy, the probabilities meeting the destination node and the reputation of nodes to compute Hybrid Strategy Value (HSV) of candidate forwarding nodes. At the meantime, nodes could determine that whether the messages are forwarded or not and which node is the optimal relay to be selected through comparing the value by Mixed Forwarding Strategy (MFS). The simulation results show that compared with traditional Epidemic algorithm and only considering energy or buffer routing algorithms, the proposed routing algorithm has better performance in the delivery ratio of messages, the average delay time and the average buffer time.

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