一种面向认知网络的QoS路由协议  

A QoS Routing Protocol for Cognitive Networks

作　　者：谢小民[1] 王兴伟[1] 温占考[2] 黄敏[1] 

机构地区：[1]东北大学信息科学与工程学院,沈阳110819 [2]东北大学计算中心,沈阳110819

出　　处：《计算机学报》2013年第9期1807-1815,共9页Chinese Journal of Computers

基　　金：国家杰出青年科学基金(61225012);国家自然科学基金(6107016271071028;70931001);高等学校博士学科点专项科研基金优先发展领域资助课题(20120042130003);高等学校博士学科点专项科研基金资助课题(20100042110025;20110042110024);工信部物联网发展专项资金资助项目;中央高校基本科研业务费专项资金资助项目(N110204003;N120104001)资助~~

摘　　要：随着网络应用的快速发展,传统网络面临诸多挑战,难以满足新型应用的服务质量QoS(Quality of Service)需求,网络管理变得极其复杂,迫切要求网络具备认知能力.文中提出了一种面向认知网络的QoS路由协议.为了满足不同应用的QoS需求,路由请求对应不同业务类型和服务等级,映射到相应的QoS参数.文中赋予路由节点感觉、活动感、记忆、查找、决策、执行、推理、解释等认知行为,设计了与这些行为相对应的协议报文,支持节点之间通过这些报文进行交互,从而具备认知能力.节点只收集和维护局部邻居和链路状态信息,通过使用和维护经验路段信息提高路由效率.文中对所提出的路由协议在原型系统上进行了实现,对协议的多项性能指标进行了评价.实验结果表明,文中所提出的路由协议是可行和有效的.With the rapid development of networked applications, the traditional network has confronted various kinds of challenges, making it difficult to meet with the QoS （Quality of Service） requirements of new applications. Meanwhile, network management is becoming more and more complex. All these ask the network with the cognitive capability. In this paper, a QoS routing protocol is proposed for cognitive networks. In order to satisfy the various QoS requirements of different applications, the routing requests are divided into different service types and quality levels, and mapped to the corresponding QoS parameters. Routing nodes are given certain cognitive behaviors, such as sensation, active sense, remembrance, search, decision, execution, reasoning and explanation, etc. The corresponding protocol messages are designed to support interactions between nodes, providing nodes with cognition abilities. Each routing node only gathers and maintains local status information from its neighboring nodes and connected links, and routing efficiency is further improved by using and maintaining the empirical path information. The proposed routing protocol has been implemented in prototype systems, and several performance metrics have been evaluated. The experimental results have shown that it is feasible and effective.

关 键 词：认知网络 认知行为 服务质量 路由协议 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]