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  本文選題：可重構服務承載網(wǎng) + 節(jié)能�。� 參考：《解放軍信息工程大學》2014年碩士論文

【摘要】：可重構信息通信基礎網(wǎng)絡體系通過在共享的底層物理資源基礎上構建可重構服務承載網(wǎng)(RSCN),支持多種異構網(wǎng)絡的并存與管理,進而可以向網(wǎng)絡用戶提供多樣化的網(wǎng)絡業(yè)務服務。然而當前在構建RSCN的過程中,底層承載網(wǎng)節(jié)能的需求沒有得到滿足。一方面用戶需求到達時沒有快速可靠的節(jié)能方案來構建RSCN,另一方面用戶需求結束時底層承載網(wǎng)并不處于較好的節(jié)能狀態(tài)。如何構建及調整RSCN使其最優(yōu)化地滿足當前網(wǎng)絡的節(jié)能需求是亟待解決的重要研究課題。論文依托國家973項目“可重構信息通信基礎網(wǎng)絡體系研究”和“業(yè)務自適應認知承載機理”子課題,針對RSCN節(jié)能問題在需求到達時和需求結束時兩種情況下存在的難點展開了較為深入的研究。具體工作如下:1.針對一般需求的RSCN節(jié)能構建問題,提出了基于節(jié)點聚合使用的兩階段映射方法。該方法考慮了底層節(jié)點的資源能力和網(wǎng)絡拓撲位置兩方面因素,并基于緊密中心度提出了節(jié)點節(jié)能重要度的概念,節(jié)點排序后根據(jù)貪婪策略優(yōu)先映射服務節(jié)點,并檢驗保證底層鏈路距離較短。仿真結果表明本方法在一般需求的RSCN情況下使構建成功率達到70%、長期收益開銷比達到75%的同時,提高收益能耗比10%左右。2.針對大規(guī)模及高帶寬需求的RSCN節(jié)能構建問題,提出了一種拓撲聚合使用的尋核映射方法。該方法在節(jié)點節(jié)能重要度的基礎上,找到核心服務節(jié)點優(yōu)先映射,通過檢驗確保所選底層承載核心節(jié)點滿足核心服務節(jié)點的要求,節(jié)點和鏈路映射同步進行,根據(jù)貪婪策略進行鄰居搜索保證所選底層節(jié)點距離和較小。同時提出一種RSCN的需求判定方法進而使用混合算法進行RSCN構建。仿真結果表明該算法在處理大規(guī)模及高帶寬需求的RSCN節(jié)能構建問題時能夠提升接近20%的構建成功率,提高長期收益開銷比和收益能耗比10%以上;該混合算法能夠有效地處理普通環(huán)境下RSCN節(jié)能構建問題,提高構建性能。3.針對RSCN結束時底層承載網(wǎng)節(jié)能重構問題,提出了基于逼近理想排序法的均衡節(jié)能重構方法。該方法首先基于逼近理想排序法選擇底層承載節(jié)點的相關信息作為方案屬性,根據(jù)節(jié)能或均衡的重構需求排序以找到最佳重構節(jié)點,然后優(yōu)先進行節(jié)能重構,再對工作狀態(tài)的網(wǎng)絡拓撲進行均衡重構。仿真結果表明該方法改善了底層承載網(wǎng)的負載均衡情況和能耗水平,提升了構建成功率和收益能耗比。
[Abstract]:The reconfigurable information and communication basic network system can support the coexistence and management of many heterogeneous networks by constructing a reconfigurable service bearer network on the basis of shared underlying physical resources, and then can provide a variety of network services to network users. However, in the process of constructing RSCN, the energy saving requirement of the underlying bearer network has not been satisfied. On the one hand, there is no fast and reliable energy saving scheme to build RSCN when user requirements arrive; on the other hand, the underlying carrier network is not in a better energy saving state when user demand ends. How to construct and adjust the RSCN to meet the energy saving requirements of the current network is an important research topic to be solved urgently. The thesis relies on the national 973 project "Research on Reconfigurable Information and Communication basic Network system" and "Service Adaptive Cognitive bearing Mechanism". In this paper, the problem of energy saving in RSCN is studied deeply in the two situations of demand arrival and demand end. The work is as follows: 1. A two-stage mapping method based on node aggregation is proposed to solve the problem of energy saving construction of RSCN with general requirements. This method takes into account the resource capacity of the underlying node and the network topology location, and proposes the concept of the node energy saving importance based on the closeness centrality. The nodes are sorted to map the service nodes first according to greedy strategy. And check to ensure that the lower link distance is short. The simulation results show that this method can make the construction success rate reach 70%, the long-term ratio of income to cost reach 75%, and increase the ratio of income to energy consumption about 10%. In order to solve the problem of large scale and high bandwidth RSCN energy saving construction, a kernel mapping method for topology aggregation is proposed. Based on the importance of energy saving of nodes, this method finds the priority mapping of core service nodes, ensures that the core nodes selected to carry the core nodes meet the requirements of the core service nodes, and synchronizes the mapping between nodes and links. According to greedy strategy, neighbor search ensures the distance and the size of the selected nodes are small. At the same time, a requirement determination method of RSCN is proposed, and then RSCN is constructed by hybrid algorithm. The simulation results show that the proposed algorithm can improve the success rate of RSCN construction by nearly 20% and increase the ratio of long-term income to cost and energy consumption by more than 10% when dealing with the problem of large scale and high bandwidth RSCN energy saving construction. The hybrid algorithm can effectively deal with the problem of energy saving construction of RSCN in common environment, and improve the performance of building. 3. 3. In order to solve the problem of energy saving reconfiguration of bottom bearing network at the end of RSCN, a balanced energy saving reconfiguration method based on approximate ideal sorting method is proposed. Firstly, based on the approximate ideal sorting method, the information of the underlying bearer node is selected as the scheme attribute, and the optimal reconfiguration node is sorted according to the energy saving or balanced reconfiguration requirements, and then the energy saving reconfiguration is given priority. Then the network topology of the working state is reconfigured. The simulation results show that the proposed method can improve the load balance and energy consumption level of the underlying load-carrying network, and improve the success rate of construction and the ratio of income to energy consumption.
【學位授予單位】：解放軍信息工程大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TP393.09

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本文編號：1907287