WU Da-peng, FU Xiang-jiu, ZHANG Hong-pei, et al. Congestion Control Strategy with Node Status Evaluation for Delay Tolerant Networks[J]. Acta Electronica Sinica, 2016, 44(1): 186-192.
WU Da-peng, FU Xiang-jiu, ZHANG Hong-pei, et al. Congestion Control Strategy with Node Status Evaluation for Delay Tolerant Networks[J]. Acta Electronica Sinica, 2016, 44(1): 186-192. DOI: 10.3969/j.issn.0372-2112.2016.01.027.
To improve the data transmission efficiency of delay tolerant network (DTN)
multiple copies of packets are injected into the network.However
the network will be congested due to large number of redundant copies.To solve the congestion
a congestion control strategy with node status evaluation is introduced in this paper.According to the historical information obtained during the node movement process
the congestion status is determined by combining the direct and indirect estimation results.Furthermore
the relay node can be selected reasonably
and the limited network resources can be utilized effectively.Results show that the packet delivery ratio and network overhead ratio can be improved dramatically by our proposed strategy.