基于社会距离的下一代网络带宽资源分配方法研究

Social Distance-based Bandwidth Resource Allocation Approach to Next Generation Networks

研究了下一代网络中瓶颈链路的带宽资源分配问题,利用融入了社会距离参数的用户效用函数,使得用户的带宽资源分配问题转变成一个在不等式约束条件下的最优化问题.由于最优化问题的复杂性,最优的分配带宽是用数值方法估计的,相关的结果证明了社会距离参数在带宽分配上的重要影响.利用社会距离值对实际网络拓扑中节点进行分类聚合,证明了各组间的最优化带宽分配与网络拓扑中节点数目及分组中节点数目门限值存在相互影响的关系,算法有利于更好地对网络带宽资源进行分配.

The bandwidth allocation problem for the bottleneck link in next generation networks is studied. By introducing the social distance parameter into the utility function, bandwidth resource allocation prOblem for users is turned into a optimal one with the inequation constrains. Due to the complexity of this optimal problem, the numerical method is used to estimate the optimal bandwidth allocated. The related results demonstrates the impact of social distance parameter on bandwidth allocation. The social distance value is exploited to cluster the nodes in the network topology. The theory analysis indicates that there exit the significant relationships among the optimal bandwidth of each group, the number of the nodes in the network, and the threshold of the nodes＇ number in each group. This algorithm proposed can better allocate the network bandwidth resource.