基于层次分析法的短波地空网链路优选算法

Optimization Link Algorithm of High Frequency Ground-to-Air Network Based on Analytic Hierarchy Process

针对短波网中影响链路质量的因素多、优选链路准确度小等问题,提出一种基于层次分析法(Analytic Hierarchy Process,AHP)的短波地空网链路优选算法。该算法综合考虑影响链路质量的信噪比、接收端场强中值、链路可靠度和时延等因素,构造数学模型进行链路排序,为通信双方选择一条性能最优的链路。联合OPNET网络协议仿真软件和ITS短波信道仿真软件,搭建短波地空网链路优选仿真场景,采用离线静态联合的思想对AHP链路优选算法进行仿真,结果表明:优选短波站的网络仿真结果和理论计算结果的一致性验证了算法的合理性,接收率和吞吐量的提高验证了算法的有效性。

Aiming at the complex factor influencing the link quality of HF network and low accuracy of optimal link, an algorithm based on analytic hierarchy process （AHP） is designed to establish the optimization link algorithm of HF ground-to-air network. Considering the SNR,DBU ,REL and DELAY, selects a best performance link by constructing mathematical model for link ordering. The simulation scenario built by OPNET and ITS optimized link of HF ground-to-air network, and the results show that the consistency of the network simulation and the theoretical calculation of the optimized HF station verifies the rationality of the algorithm, the increase of the data receiving rate and network throughput verifies the effectiveness of the algorithm.