基于网络演算的通信系统建模理论及特性研究

项目名称： 基于网络演算的通信系统建模理论及特性研究

项目编号： No.61300185

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 自动化技术、计算机技术

项目作者： 高月红

作者单位： 北京邮电大学

项目金额： 22万元

中文摘要： 网络演算理论中对并联服务器模型研究的欠缺，为分析具有多个并行信道的网络性能带来了不便。从理论角度来说，推导并联服务器服务模型的难点在于，各并联服务器自身特性本就包含多元性和随机性，当它们并联时，服务器之间的相互耦合和关联进一步增加了建模和分析的难度。本项目拟基于最小加代数、虚拟时间函数分析法等数学模型，结合调度算法、各服务器性能等核心因素，推导并联服务器系统整体服务特性的数学描述。在理论基础完善后，选取当今主流通信系统中的典型并联服务器场景，经过模型提取、参数映射，推导系统特性的理论分析结果。再进一步结合输入系统的业务流模型，分析系统能够为不同的业务提供服务质量保证的情况。此外，采自实际部署网络的运营数据也将用于对上述理论结果进行匹配验证。

中文关键词： 网络演算；性能分析；多服务器/多信道系统；基于能量收集的通信系统；认知无线电通信系统

英文摘要： The shortcoming of parallel-server system model in network calculus theory causes inconvenience to the performance analysis of a network with multiple parallel channels. From the theoretical viewpoint, the most challenging points include, the properties of every single server consist of multiple factors and randomness, and when they work in a parallel mode, the coupling and interconnectivity between multiple servers further increase the difficulty of modeling and analysis. This project will derive the mathematical description for the aggregated parallel-server system's property, on the basis of min-plus algebra, virtual time function analysis and other models, together with consideration of scheduling mechanisms and key factors of each server. After establishing theoretical models, typical parallel-server scenarios in main stream communication systems will be relied on to derive its properties through model abstract and parameter mapping. Further with the input traffic model, the quality of service guarantee provided to different traffic will be analyzed. In addition, operation data collected from practically deployed networks will be relied on to validate the aforementioned theoretical outcomes.

英文关键词： Network calculus；performance analysis；multi-server/multi-channel system；energy harvesting communication system；cognitive ratio communication system