Probability Optimization Research in Opportunistic Network
Maoyi Xuan · 2016
The opportunistic network has the characteristics of node mobility and sparse distribution, which can cause the problems that it is not a stable communication link between the source node and the destination node, the communication is easy to break and the delivery ratio is low.This paper makes use of the encounter interval to estimate encounter probability.Then it selects the retransmission nodes exactly base on encounter probability.This paper also defines a message value model, which calculates the value of each message in the transmission queue.Messages value determines transmission order, which will reduce meaningless transmission.The simulation results show that the proposed routing protocol can effectively improve the delivery probability, reduce the network overhead ratio.