多通道并行传输中基于收益最大化的流量分配方法

针对已有的多通道并行传输中的流量分配方法不区分业务、也未考虑资源收益的问题,分析了业务参数模型,引入业务的收益作为多通道并行传输中流量分配的效益评价函数,通过将流量分配映射为带宽分配建立了基于收益最大化的多通道并行传输流量分配模型。基于边际收益递减法则,提出了一种边际收益优先的多业务流多通道并行传输流量分配算法,该算法先根据边际收益优先的贪心策略获取最大化收益的流量分配方案,然后通过调整业务在不同通道间的流量来保证业务的最低质量要求,最后通过典型业务实例分析和仿真实验验证了算法的有效性。与基于带宽比例策略的流量分配算法相比,所提出的方法能够在保证业务质量的前提下,实现带宽资源的优化配置,提高运营商的收益。

Traffic distribution method for concurrent multipathtransfer based on maximum revenue

In order to solve the problem that existing traffic distribution methods for concurrent multipath transfer do not distinguish services or consider the revenue of resource, this paper analyzed service parameters and used the revenue of services as the benefit evaluation function of the traffic distribution for concurrent multipath transfer. It built a traffic distribution model based on maximum revenue through mapping traffic distribution to bandwidth allocation. Based on the law of diminishing marginal utility, it proposed a traffic distribution method with marginal revenue priority for concurrent multipath transfer. The algorithm firstly obtained the traffic distribution results which had maximum revenue by a greedy strategy with marginal revenue priority, and then adjusted the traffic among the paths to ensure the minimum QoS. The case analysis and experimental results verify the effectiveness of the method. Compared with the traffic distribution method based on bandwidth ratio policy, the proposed method can achieve the optimal allocation of bandwidth resource and improve the operator's revenue while ensuring the service QoS.