基于随机网络演算的LTE网络端到端时延分析

摘要

长期演进计划LTE (Long Term Evolution)由第三代合作伙伴计划(The 3rd Generation Partnership Project,3GPP)提出,是下一代高速无线网络通信的重要标准.LTE网络中的数据传输性能评价是学术界与工业界重要问题.但是,无线信道的时变性使得LTE网络中性能评价的复杂度大大增加.文中利用随机网络演算对LTE网络中不同数据流的到达和服务进行建模,建立了对LTE网络进行数据传输时端到端(End-to-End,E2E)时延分析的框架,并通过数值分析验证了所建立框架的有效性.%Long Term Evolution (LTE) , which was proposed by the 3rd Generation Partnership Project (3GPP), is an important standard in future wireless network communication. However, the time-varying characteristic of wireless channel capacity in LTE networks poses big challenges in performance analysis. In this paper, we construct a framework of analyzing stochastic End-to-End (E2E) delay of the LTE network by modeling the arrival model and service model using Stochastic Network Calculus (SNC). Numerical analyses are conducted to prove the effectiveness of the framework.