民航空地通信中的多链路数据分配算法

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。

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

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.