随机接入网络的带宽需求估计方法

Bandwidth Requirement Estimation Method for Random Access Networks

本文研究时延QoS(Quality of Service)约束下的随机接入网络带宽需求估计方法。模型中,采用不同随机过程的聚合描述差异化业务的到达过程,用马尔可夫过程描述Aloha随机接入的服务过程,建立了多业务到达的排队系统。基于排队论、有效带宽理论及有效容量理论,推导了时延QoS约束下的带宽需求。采用Matlab进行了仿真实现,并分析了时延QoS参数、到达过程参数对带宽需求的影响。

This paper studies the bandwidth requirement estimation method of random access network with delay QoS(quality of service). In the model, the aggregation of different stochastic processes is used to describe the arrival process of differentiated services, and the Markov process is used to describe the service process of Aloha random access.Based on queuing theory, effective bandwidth theory and effective capacity theory, bandwidth requirements under delay QoS constraints are derived. The simulation is implemented by MATLAB, and the influence of delay QoS parameters and arrival process parameters on bandwidth requirement is analyzed.