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针对多路传输控制协议联合拥塞控制未考虑丢包率对吞吐量的影响和传统静态路径选择方法降低并行数据传输鲁棒性的问题,提出一种以提升吞吐量为优化目标的基于马尔可夫决策过程的动态路径选择方法.综合考虑往返时延和丢包率对吞吐量的影响,根据最优策略动态地选取不同的路径进行数据传输,数据传输时不减少路径数量,在不影响并行数据传输鲁棒性的基础上提升吞吐量.仿真结果表明,在路径参数变化时,所提出的路径选择方法可以更有效地均衡流量,提升吞吐量.
Aiming at the problem that the joint congestion control of multi-path transmission control protocol does not consider the influence of packet loss rate on the throughput and the traditional static path selection method reduces the robustness of parallel data transmission, aiming at improving the throughput, The dynamic path selection method of decision-making process, considering the impact of round-trip delay and packet loss rate on the throughput, dynamically selecting different paths for data transmission according to the optimal strategy, without reducing the number of paths during data transmission without affecting the parallel data And enhance the throughput based on the robustness of the transmission.The simulation results show that the path selection method proposed in this paper can more effectively balance the traffic and improve the throughput when the path parameters change.