认知无线Mesh网络负载均衡组播路由研究

项目名称： 认知无线Mesh网络负载均衡组播路由研究

项目编号： No.61309027

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： 邝祝芳

作者单位： 中南林业科技大学

项目金额： 23万元

中文摘要： 认知无线Mesh网络(CWMN)是结合认知无线电技术的无线Mesh网络，随着流媒体等无线组播业务的增多，如何利用CWMN中的频谱空穴提高网络吞吐量、服务质量，目前处于研究的初期阶段。由于节点位置、主用户使用信道的方式、各信道本身的差异，带来的信道多重异构性，引发的负载不均衡问题还未引起研究人员的关注。本项目将从信道的多重异构性入手，对CWMN负载均衡组播路由中涉及到的异构信道使用特性建模、负载均衡与链路质量评估、负载均衡模糊识别的组播路由度量等关键内容进行深入研究。主要研究内容包括：基于HMM的异构信道使用特性模型、基于模糊集理论的负载均衡及链路质量评估方法、基于负载均衡模糊识别的组播路由度量指标、满足QoS 约束的负载均衡组播路由算法和机制。研究工作通过模拟仿真进行验证与改进。通过课题的研究，对提高网络吞吐量，改善流媒体等无线组播的服务质量，具有十分重要的意义。

中文关键词： 认知无线 Mesh 网络；负载均衡；高吞吐量；安全路由；多路径

英文摘要： Cognitive wireless mesh networks (CWMN) are wireless mesh network which integrates the cognitive radio technologies. With the development of the wireless multicast application,such as streaming media, how to use these unused spectrums(channels) in CWMN improve network thuoughput, quality of service, is currently in the early stages of the study. The channels have multiple heterogeneous due to the different of node location ,different spectrum usage mode of primary users, difference of the channel itself, which caused load imbalance problem. Howerver,at present very few attempts have been made to investigate this problems.The project start with channel multiple heterogeneous, is moivated to further research load balancing multicast routing problems, which include heterogeneous channel characteristics modeling, load balancing and link quality assessment, load balancing fuzzy recognition multicast routing metric in CWMN.The main research contents include: the heterogeneous channel usage characteristics model based on Hidden Markov Model(HMM). the load balancing and link quality assessment methods based on fuzzy set theory, the multicast routing metrics based on load balancing fuzzy recognition, the load balancing multicast routing algorithms and mechanisms with QoS constraints.The research work will be verified an

英文关键词： Cognitive wireless mesh networks；load balancing；high throughput；multipath；secure routing