民航空地通信中的多链路数据分配算法  

A Multilink Data Allocation Algorithm in Civil Aviation Air to Ground Communication

作　　者：余翔[1] 程士龙 段思睿[1] 王子怡 YU Xiang;CHENG Shilong;DUAN Sirui;WANG Ziyi(School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China)

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065

出　　处：《电讯技术》2023年第9期1315-1321,共7页Telecommunication Engineering

基　　金：校企合作项目(S2019-06N)。

摘　　要：针对民航空地通信数据丢失率高、吞吐量低问题,提出了一种基于丢包感知负载均衡(Packet Loss-Aware Load Balancing)的分配算法。在空地多链路通信中,每条链路的数据损失率随着链路状态与传输环境等情况实时变化。该算法通过控制每次空地通信中数据流的分割比率,动态分配给每条链路不同大小的数据流,使每条链路的传输损失率趋于相近,提高了空地通信系统吞吐量并减少了数据传输损失,以应对空地通信中丢包率高与吞吐量低等问题。仿真结果表明,所提算法在数据传输损失率和吞吐量上都优于现有的多链路子流分配算法。To solve the problem of high data loss rate and low throughput of civil aviation air to ground communication,an allocation algorithm based on packet loss-aware load balancing is proposed.In air to ground multilink communication,the data loss rate of each link changes in real time with the link state and transmission environment.The algorithm dynamically allocates different sizes of data flows to each link by controlling the split ratio of data flows in each air to ground communication,so that the transmission loss rate of each link tends to be similar.Thus,the air to ground communication system improves the throughput and reduces the data transmission loss to cope with the problems of high packet loss rate and low throughput in air to ground communication.Simulation results show that the proposed algorithm is superior to the existing multilink subflow allocation algorithms in terms of data transmission loss rate and throughput.

关 键 词：空地通信 多链路数据分配 子流分配 负载均衡 

分 类 号：TN929.5[电子电信—通信与信息系统]