CGR-QV: A Virtual Topology DTN Routing Algorithm Based on Queue Scheduling  

作　　者：Yaowen Qi Li Yang Chengsheng Pan Hanrui Li 

机构地区：[1]Nanjing University of Science and Technology,Nanjing 210094,China [2]Dalian University,Dalian 116622,China [3]Communication and Network Lab of Dalian University,Dalian 116622,China [4]Nanjing University of Information Science&Technology,Nanjing 210044,China

出　　处：《China Communications》2020年第7期113-123,共11页中国通信（英文版）

基　　金：supported by National Natural Science Foundation of China(No.61722105)。

摘　　要：In this paper,we proposed a CGR-QV algorithm in order to solve the problems of low message delivery rate and low throughput problems in deep space communication networks,which are caused by the high delay,asymmetric data transmission rate,and frequent topology switching characteristics.The proposed method separate different message types in the queues,establish the relationship between TTL,wait time and Hurst to prevent the phenomenon of"starvation"and redundancy.In view of the impact of congestion on the network,improved algorithm use the Elastic load balancing strategy establish the relationship between optimal thresholdsαand network performance reliability.Simulation result show that the algorithm has improved in throughput as about 19%,message delivery rate improved as about 7.5%and bandwidth rejection rate decreased as about 4.7%,the algorithm can balance the impact of topology updates and resource consumption better in space communication networks.

关 键 词：NETWORK TOPOLOGY DELAY 

分 类 号：TN927[电子电信—通信与信息系统]