Dynamical message replicating risk aware cache management scheme
Huang Peiy · Journal of Chongqing University of Posts and Telecommunications · 2014
Aiming at the low efficiency of cache management in opportunistic network,A novel cache management strategy based on dynamical message replicating risk evaluation is proposed. The transmitting status of a given message is predicted by considering four parameters,including the time to live already,hop count,copies of message and regional delivery probability. Consequently,the risk of message replicating can be determined by K-average clustering,and the limited resources can be reserved for the proper message. Compared with other cache management strategies,the simulation results show that the proposed strategy can efficiently increase the message delivery ratio while the overhead is improved also.