Cache Management Based on Node Status in Delay Tolerant Networks
Jun-She Wang, Bin Zhang · 2017
Delay Tolerant Network (DTN) is a kind of wireless network with limited resources and often occurs congestion.The effective cache management can make full use of the network resources and reduce the network congestion.Therefore, aiming at the deficiency of the current research of cache management, this paper puts forward a kind of cache management strategy based on node status.With the knowledge of statistical analysis and control, the message queue and transmission rate are managed dynamically by detecting node activity and load.The experimental results show that, under the cache management, the network congestion was obviously reduced, and the utilization rate of resources has been improved, and the communication quality of the DTN is guaranteed.