中文摘要：

为了使路由器的缓存大小配置合理,首先综合考虑路由器的度数权重、紧密度、网络的中心度、请求影响度等度量指标,定义了一个新的度量指标,称为节点权重;然后提出一种基于节点权重的缓存大小分配方案,将网络所需的容量按比例分配给路由器。仿真结果表明,与均匀分配相比,路由器的缓存空间利用率至少提升了8%,命中率至少提高了6%;与基于请求影响度的分配方案相比,路由器的缓存空间利用率至少提升3%,命中率至少提高了3%。

英文摘要：

In order to allocate cache size of each router reasonably, this paper defined a new metric named node weight which considered several metrics （ e. g. , degree weight, closeness centrality, network centrality, and request influence degree）. Then, it proposed a cache size allocation scheme based on node weight, to allocate router cache size proportional to node weight. Numerical experiments reveal that compared with the homogeneous assignment, the utilization rate of the router＇ s cache space increases by 8% at least and hit rate of the router＇ s cache space increases by 6% at least;compared with cache size allocation based on request influence degree, the utilization rate of the routeFs cache space increases by 3% at least and hit rate of the router＇ s cache space increases by 3% at least.