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针对空间网络具有距离远、延时大、周期性间歇连接的特点,提出了一种适用于空间网络的多路径最大吞吐量的路由算法(SMMT)。该算法是对最小费用最大流算法的改进,经过多次最小费用路径查找和残留网络的构造过程,最终可以找出所有满足传输条件的转发路径。仿真实验表明,和传统的ASCOT和S-OSFP单路径路由算法相比,SMMT算法明显提高了网络的吞吐量,减少了数据包的传输时延,使得网络的资源得到充分的利用。
Aiming at the characteristics of space network being long distance, large delay and intermittent intermittent connection, a routing algorithm (SMMT) for multi-path maximum throughput of space network is proposed. This algorithm is an improvement on the algorithm of maximum cost of minimum cost. After many paths of minimum cost and construction of residual network, we can finally find all the forwarding paths that satisfy the transmission conditions. The simulation results show that compared with the traditional ASCOT and S-OSFP single-path routing algorithms, the SMMT algorithm can obviously improve the throughput of the network and reduce the transmission delay of the data packets, so that the network resources can be fully utilized.