A DTN Oriented Adaptive Routing Algorithm Based on Node Load  

作　　者：Hongyan Cui Diyue Chen Roy E.Welsch 

机构地区：[1]State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications,Beijing 100876,China [2]Beijing Laboratory of Advanced Information Networks,Beijing University of Posts and Telecommunications,Beijing 100876,China [3]Massachusetts Institute of Technology,Cambridge,MA 02139,USA

出　　处：《China Communications》2022年第12期54-63,共10页中国通信（英文版）

基　　金：National Key R&D Program of China(2020YFB1807805,2020YFB1807800);CERNET Innovation Project(NGII20190806).

摘　　要：In recent years,Delay Tolerant Networks(DTN)have received more and more attention.At the same time,several existing DTN routing algorithms generally have disadvantages such as poor scalability and inability to perceive changes in the network environment.This paper proposes an AdaptiveSpray routing algorithm.The algorithm can dynamically control the initial maximum message copy number according to the cache occupancy rate of the node itself,and the cache occupancy rate is added as an impact factor to the calculation of the probability of each node meeting the destination node.In the forwarding phase,the node will first compare the meeting probability of itself and the meeting node to the destination node,and then choose different forwarding strategies.The simulation shows that the AdaptiveSpray algorithm proposed in this paper has obvious advantages compared with the existing routing algorithms in terms of message delivery rate and average delay.

关 键 词：DTN routing algorithm ADAPTIVE cache management 

分 类 号：TP393.0[自动化与计算机技术—计算机应用技术]