油田無線異構網(wǎng)絡下QoS相關技術的研究
發(fā)布時間：2018-12-16 20:22
【摘要】：伴隨著互聯(lián)網(wǎng)的發(fā)展,油田中網(wǎng)絡環(huán)境的重要性日益增加,而通常油田的網(wǎng)絡環(huán)境由4G、WiMAX以及GPRS/CDMA公網(wǎng)等多種網(wǎng)絡共同組成,這些不同的網(wǎng)絡一起構成了油田中的無線異構網(wǎng)絡。油田中無線異構網(wǎng)絡技術的應用帶來了很多優(yōu)勢,但同時也面臨著移動性管理技術、聯(lián)合無線資源管理、端到端QoS保障以及安全管理等多方面的問題。QoS保障作為上述難點之一,面臨著分類標準不統(tǒng)一、QoS技術缺乏通用性、QoS保障缺乏全局優(yōu)化等諸多困難和挑戰(zhàn)。但端到端QoS保證決定著業(yè)務的完成質量,體現(xiàn)了網(wǎng)絡的整體性能,是當前油田亟需解決的關鍵性問題。論文針對油田無線異構網(wǎng)絡環(huán)境中QoS保證問題進行研究,主要圍繞QoS水平映射和QoS路由選擇兩個方面。針對油田無線異構網(wǎng)絡環(huán)境中的QoS水平映射問題,本文提出了一種基于網(wǎng)絡負載的動態(tài)QoS水平映射方案。該方法研究對油田業(yè)務進行統(tǒng)一歸類,結合各典型網(wǎng)絡和QoS模型對業(yè)務優(yōu)先級設置建立無線異構網(wǎng)間的映射關系表;之后在傳輸過程中根據(jù)網(wǎng)絡負載情況選擇不同的傳輸優(yōu)先級調(diào)整操作,實現(xiàn)了映射關系的動態(tài)調(diào)整。仿真結果表明該方法不僅可以實現(xiàn)不同網(wǎng)絡之間的有效互通而且可以在保證業(yè)務傳輸質量前提下提高網(wǎng)絡資源利用率。針對油田無線異構網(wǎng)絡環(huán)境中的QoS路由選擇問題,本文提出了一種在多約束條件下以滿足業(yè)務QoS需求為根本目標的路由選擇方法。該方法首先計算各路資源對不同約束的滿足程度,之后對各滿足度進行加權求和并將此作為最終判決條件進行QoS選路;同時為了減少整體計算復雜度,本文還根據(jù)業(yè)務特點對待選路由進行初次篩選。仿真實驗對方法中滿足度閾值、各約束權重、路由信息更新頻率等參數(shù)設置進行了分析,結果表明在正確設置各項參數(shù)情況下該方法可以實現(xiàn)多約束條件下路由的擇優(yōu)選擇,并在很大程度上提高業(yè)務的完成效率。本文針對油田無線異構網(wǎng)絡環(huán)境中的QoS保障問題進行了研究,提出了基于網(wǎng)絡負載的動態(tài)QoS水平映射方案和多約束條件下的QoS路由選擇方法。兩種方案均能達到預期目標,為實現(xiàn)油田無線異構網(wǎng)絡下QoS保證提供理論基礎。
[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.
【學位授予單位】：蘭州理工大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：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.
【學位授予單位】：蘭州理工大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TN92
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相關期刊論文 前10條
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