电力通信网跨层融合评估方法研究

发布时间：2018-05-11 03:42

本文选题：电力通信网 + 重要度评估　；参考：《华北电力大学》2017年硕士论文

【摘要】：电力通信网的重要度评估能够识别网络关键节点和链路,对于提高网络可靠性,减少网络损失具有重要意义。目前电力通信网的重要度评估方法大都是基于拓扑结构,考虑业务特征的方法相对较少,且对电力通信网效能评估问题关注较少。由于电力通信网中业务具有行业特殊性,因此单纯从拓扑层面衡量重要度具有一定局限性。本课题的开展,综合考虑网络拓扑层和业务层影响因素,弥补现有研究的不足,有效提高评估准确性。对电力通信网的重要度评估、效能评估方法以及现有的相关成果进行深入研究,提出跨层融合的评估方法。首先,对国内外与本课题相关的研究成果进行分析,对电力通信网评估方法进行总结;分析了电力通信网络拓扑参数和承载的主要业务及其性能要求,细化了特征指标法评价电力通信网业务重要度时的比较值;其次,选用自然连通度作为网络拓扑抗毁性测度,以此衡量网络元素失效后对拓扑层的破坏程度,从而得到拓扑重要度,结合电力通信网业务层网络模型,阐述了节点业务重要度和链路业务重要度的计算方法。此外,将网络元素承载的业务以权值的形式引入自然连通度的计算中,定义了网络加权自然连通度,根据节点、链路失效后加权自然连通度的变化给出融合拓扑层及业务层的节点融合重要度和链路融合重要度的概念,实现了电力通信网跨层融合重要度评估。再次,针对电力通信网效能评估问题,结合节点和链路重要度等作为指标,采用ADC法建立电力通信网效能评估模型,该模型层次清晰,利于计算。最后,通过实验进行对比分析,验证了融合评估方法的可行性与有效性。
[Abstract]:The importance evaluation of the power communication network can identify the key nodes and links of the network. It is of great significance to improve the network reliability and reduce the loss of the network. At present, most of the evaluation methods of the importance of the power communication network are based on the topology structure, and the methods of considering the business characteristics are relatively small, and are concerned about the effectiveness evaluation of the power communication network. Because the business in the power communication network has the specialty of industry, it is limited to measure the importance simply from the topology level. The development of this topic, considering the network topology and the influence factors of the business layer, make up the shortage of the existing research and effectively improve the accuracy of the evaluation. The method and the existing related achievements are deeply studied, and the evaluation methods of cross layer fusion are put forward. Firstly, the research results related to this subject are analyzed, and the evaluation methods of the power communication network are summarized. The topology parameters of the power communication network and the main requirements of the carrier and their performance requirements are analyzed, and the characteristic index method is refined. The comparison value of the importance of the power communication network is evaluated. Secondly, the natural connectivity is chosen as the network topology destruction measure to measure the damage degree of the topology layer after the failure of the network elements, thus the topology importance is obtained, and the importance of the node business and the link business importance are expounded in combination with the network model of the power communication network. In addition, the network weighted value of network elements is introduced into the calculation of natural connectivity. The weighted natural connectivity of the network is defined. The concept of the fusion importance and the link fusion importance of the fusion topology layer and the business layer is given according to the changes of the weighted natural connectivity after the link failure. In this paper, the importance evaluation of the cross layer fusion of the power communication network is presented. Thirdly, in view of the effectiveness evaluation of the power communication network, combined with the node and link importance as the index, the ADC method is used to establish the effectiveness evaluation model of the power communication network. The model is clear and helpful to the calculation. Finally, the experiment is carried out to verify the fusion evaluation method. Feasibility and effectiveness.

【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN915.853;TM73

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