科研之友
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摘要
Aims to the routing protocol of Bus Vehicle Network with the characteristics of cyclical movement, we put forward to the Signal-Single & Multi hop Routing (SSMHR) routing protocol, which can solve the problem of the signal attenuation on urban environment and uncertain next hop forwarding on multi-hop. Link Survival Mode considering the signal attenuation will be established in Single-hop to select encounter nodes as forwarding candidate set. Discrete Stochastic Dynamic Programming Delay Probability Model will be established in Multi-hop using the historical data of bus cyclical movement. The two models ensure the submitted data reliable in single-hop, and probability of successfully submitted to the target vehicle through multi-hop within a limited delay. According to the simulation test, SSMHR protocol has a higher successful rate of data transmission and lower submitted delays.
