油田无线异构网络下QoS相关技术的研究
发布时间：2018-12-16 20:22
【摘要】：伴随着互联网的发展,油田中网络环境的重要性日益增加,而通常油田的网络环境由4G、WiMAX以及GPRS/CDMA公网等多种网络共同组成,这些不同的网络一起构成了油田中的无线异构网络。油田中无线异构网络技术的应用带来了很多优势,但同时也面临着移动性管理技术、联合无线资源管理、端到端QoS保障以及安全管理等多方面的问题。QoS保障作为上述难点之一,面临着分类标准不统一、QoS技术缺乏通用性、QoS保障缺乏全局优化等诸多困难和挑战。但端到端QoS保证决定着业务的完成质量,体现了网络的整体性能,是当前油田亟需解决的关键性问题。论文针对油田无线异构网络环境中QoS保证问题进行研究,主要围绕QoS水平映射和QoS路由选择两个方面。针对油田无线异构网络环境中的QoS水平映射问题,本文提出了一种基于网络负载的动态QoS水平映射方案。该方法研究对油田业务进行统一归类,结合各典型网络和QoS模型对业务优先级设置建立无线异构网间的映射关系表;之后在传输过程中根据网络负载情况选择不同的传输优先级调整操作,实现了映射关系的动态调整。仿真结果表明该方法不仅可以实现不同网络之间的有效互通而且可以在保证业务传输质量前提下提高网络资源利用率。针对油田无线异构网络环境中的QoS路由选择问题,本文提出了一种在多约束条件下以满足业务QoS需求为根本目标的路由选择方法。该方法首先计算各路资源对不同约束的满足程度,之后对各满足度进行加权求和并将此作为最终判决条件进行QoS选路;同时为了减少整体计算复杂度,本文还根据业务特点对待选路由进行初次筛选。仿真实验对方法中满足度阈值、各约束权重、路由信息更新频率等参数设置进行了分析,结果表明在正确设置各项参数情况下该方法可以实现多约束条件下路由的择优选择,并在很大程度上提高业务的完成效率。本文针对油田无线异构网络环境中的QoS保障问题进行了研究,提出了基于网络负载的动态QoS水平映射方案和多约束条件下的QoS路由选择方法。两种方案均能达到预期目标,为实现油田无线异构网络下QoS保证提供理论基础。
[Abstract]:With the development of the Internet, the importance of the network environment in the oil field is increasing day by day, and the network environment of the oil field is composed of many kinds of networks, such as 4GW WiMAX and GPRS/CDMA public network. These different networks together constitute the wireless heterogeneous network in the oil field. The application of wireless heterogeneous network technology in oil field brings many advantages, but at the same time, it also faces mobility management technology, joint wireless resource management, As one of the difficulties mentioned above, QoS security is facing many difficulties and challenges, such as disunity of classification standard, lack of generality of QoS technology, lack of global optimization of QoS guarantee, and so on. However, end-to-end QoS guarantees the quality of the service and reflects the overall performance of the network, which is the key problem that needs to be solved in the oil field at present. In this paper, the problem of QoS guarantee in oilfield wireless heterogeneous network environment is studied, mainly focusing on QoS level mapping and QoS routing selection. Aiming at the problem of QoS horizontal mapping in oilfield wireless heterogeneous network environment, a dynamic QoS level mapping scheme based on network load is proposed in this paper. This method studies the unified classification of oilfield services, and establishes the mapping relation table between wireless heterogeneous networks by combining the typical network and QoS model to set up the service priority. In the process of transmission, different priority adjustment operations are selected according to the network load, and the dynamic adjustment of the mapping relationship is realized. Simulation results show that this method can not only realize the effective interworking among different networks, but also improve the utilization ratio of network resources under the premise of ensuring the quality of service transmission. Aiming at the problem of QoS routing in oilfield wireless heterogeneous network environment, this paper proposes a route selection method with the basic goal of satisfying the requirements of service QoS under the condition of multiple constraints. The method firstly calculates the degree of satisfaction of each resource to different constraints, and then makes weighted summation of each satisfaction and takes this as the final judgment condition to select the QoS path. At the same time, to reduce the overall computational complexity, the first route selection is selected according to the traffic characteristics. The simulation results show that the method can select the best route under the condition of multiple constraints by setting the satisfied threshold, the weight of each constraint, the update frequency of routing information and so on. And to a large extent improve the efficiency of business completion. In this paper, the problem of QoS guarantee in oilfield wireless heterogeneous network environment is studied, and a dynamic QoS level mapping scheme based on network load and QoS routing method under multiple constraints are proposed. Both schemes can achieve the expected goal and provide a theoretical basis for QoS guarantee in wireless heterogeneous networks in oil fields.
【学位授予单位】：兰州理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN92
[Abstract]:With the development of the Internet, the importance of the network environment in the oil field is increasing day by day, and the network environment of the oil field is composed of many kinds of networks, such as 4GW WiMAX and GPRS/CDMA public network. These different networks together constitute the wireless heterogeneous network in the oil field. The application of wireless heterogeneous network technology in oil field brings many advantages, but at the same time, it also faces mobility management technology, joint wireless resource management, As one of the difficulties mentioned above, QoS security is facing many difficulties and challenges, such as disunity of classification standard, lack of generality of QoS technology, lack of global optimization of QoS guarantee, and so on. However, end-to-end QoS guarantees the quality of the service and reflects the overall performance of the network, which is the key problem that needs to be solved in the oil field at present. In this paper, the problem of QoS guarantee in oilfield wireless heterogeneous network environment is studied, mainly focusing on QoS level mapping and QoS routing selection. Aiming at the problem of QoS horizontal mapping in oilfield wireless heterogeneous network environment, a dynamic QoS level mapping scheme based on network load is proposed in this paper. This method studies the unified classification of oilfield services, and establishes the mapping relation table between wireless heterogeneous networks by combining the typical network and QoS model to set up the service priority. In the process of transmission, different priority adjustment operations are selected according to the network load, and the dynamic adjustment of the mapping relationship is realized. Simulation results show that this method can not only realize the effective interworking among different networks, but also improve the utilization ratio of network resources under the premise of ensuring the quality of service transmission. Aiming at the problem of QoS routing in oilfield wireless heterogeneous network environment, this paper proposes a route selection method with the basic goal of satisfying the requirements of service QoS under the condition of multiple constraints. The method firstly calculates the degree of satisfaction of each resource to different constraints, and then makes weighted summation of each satisfaction and takes this as the final judgment condition to select the QoS path. At the same time, to reduce the overall computational complexity, the first route selection is selected according to the traffic characteristics. The simulation results show that the method can select the best route under the condition of multiple constraints by setting the satisfied threshold, the weight of each constraint, the update frequency of routing information and so on. And to a large extent improve the efficiency of business completion. In this paper, the problem of QoS guarantee in oilfield wireless heterogeneous network environment is studied, and a dynamic QoS level mapping scheme based on network load and QoS routing method under multiple constraints are proposed. Both schemes can achieve the expected goal and provide a theoretical basis for QoS guarantee in wireless heterogeneous networks in oil fields.
【学位授予单位】：兰州理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN92
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