复杂通信网络传输容量与级联效应安全防护综合研究

项目名称： 复杂通信网络传输容量与级联效应安全防护综合研究

项目编号： No.61502375

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 自动化技术、计算机技术

项目作者： 蒋忠元

作者单位： 西安电子科技大学

项目金额： 21万元

中文摘要： 网络传输容量优化寻求资源利用最大化，而级联防护要求预留额外资源以防级联故障传播造成严重后果，二者在网络资源利用上形成竞争关系，互相关联，密不可分。然而当前研究均分别关注复杂网络传输容量和级联安全问题，对二者综合研究关注不足。本项目拟首先针对目前基于节点或链路瓶颈的流量模型对实际网络流量特征表征不足问题，建立基于节点与链路共同制约且融合级联效应因素的综合流量模型。基于该综合流量模型与已有研究基础，拟主要研究（1）级联安全限定时，通过增量式权重优化、混合路由、多径路由与低代价优化网络结构等方法提高网络传输容量；（2）传输容量需求给定时，提出基于剩余邻居资源的局部流量分散级联保护策略提高级联安全系数；（3）网络传输容量的可用资源与预留的额外资源分布优化，实现网络容量与级联安全兼顾。最终为现有网络优化或未来网络设计提供理论基础与仿真依据。

中文关键词： 复杂网络理论；传输容量；级联效应；路由算法；资源共享

英文摘要： The network resources should be utilized maximally for optimizing the network traffic capacity, while extra resource is preserved for defending the propagation of cascade failures to avoid serious consequences. The traffic capacity and cascade are interrelated and inseparable. However, the current studies that focus on traffic capacity and cascade safety are separately, neglecting the integrated study between the traffic capacity and cascade. Considering the lack of characteristic representation of current node based traffic model or link based traffic model, this project intends to build the node and link integrated traffic model including the cascade phenomenon. Based on the integrated traffic model, we mainly study (1)with limited cascade safety parameter, enhancing the traffic capacity by optimizing the weight of each network element incrementally, hybrid routing, multi-paths routing and regulating network structure with low cost; (2)with given traffic capacity, proposing spare neighbor resource based local load redistribution mechanism to promote the cascade safety; (3)optimizing the distributions of available resources and extra resources to achieve both high traffic capacity and large cascading safety parameter. Finally, we hope this study can be employed in optimizing the performance of exist networks or designing future networks.

英文关键词： complex network theory;traffic capacity;cascade phenomenon;routing algorithm;resource sharing