Adaptive cache management strategy with node forwarding ability estimation
Ruyan Wang · Journal of Computer Applications · 2013
In the manner of storing-carrying-forwarding,nodes can communicate with each other in opportunistic network,and the messages should be stored at intermediate nodes for a longer time to wait for communication opportunity.As can be seen,the limited buffer should be utilized reasonably with effective buffer management strategy.Based on the estimation method of nodes forwarding ability,an adaptive buffer management strategy was proposed.According to the status of message transmission in the network,the ability of message forwarding of the node can be evaluated by combining the store time of message.Furthermore,the priority on messages forwarding and deleting can be decided dynamically and adaptively.The results show that the proposed buffer management mechanism can effectively improve the delivery probability,and reduce the load ratio greatly.