高性能网络多级交换结构实时调度方法仿真

Simulation of Real-Time Scheduling Method for High-Performance Network Multi-Level Switching Structure

针对当前单级交换结构在实时调度过程中会出现吞吐量低、负载均衡能力差以及扩展性极差等问题,提出高性能的网络多级交换结构实时调度方法。通过信元交换方式组建多级交换结构基本元素,使用服从参数、出生率、死亡率与平稳分布等测算指标多级交换结构性能特征,完成高性能网络多级交换结构设计。采用HNN方法动态与能量算法,实现多级交换结构的实时调度。仿真证明,所提方法的扩展比最大,构建的多级交换结构最稳定,且具有较高的吞吐量和负载均衡效果,满足实时调度的要求。

Due to the low throughput,poor load balancing ability and poor expansibility in current single-stage switching structure in the real-time scheduling process,this paper puts forward a high-performance and real-time scheduling method for multi-level switching structure in networks.The basic elements of multilevel exchange structure were constructed based on cell switching method.The performance feature of multilevel switching structure was detected using parameters,birth rate,death rate and stationary distribution,so as to complete the design of multistage switching structure of high-performance network.Finally,HNN dynamic and energy algorithm was used to realize the real-time scheduling of multistage switching structure.Simulation results show that the proposed method has the largest expansion ratio and the most stable multi-level switching structure.Meanwhile,this method has high throughput and load balancing effect,which can meet the requirement of real-time scheduling.