【摘要】：如今,互聯(lián)網(wǎng)的經(jīng)典架構(gòu)的很多方面已成定局,也被稱(chēng)為互聯(lián)網(wǎng)的骨化,這成為互聯(lián)網(wǎng)技術(shù)發(fā)展的主要障礙。目前已提出很多解決方案,比如,為提高網(wǎng)絡(luò)可靠性而改善域內(nèi)和域間的路由,為用戶提供端到端的鏈接,為新應(yīng)用(如數(shù)據(jù)中心、云計(jì)算、網(wǎng)絡(luò)虛擬化)提供網(wǎng)絡(luò)資源的動(dòng)態(tài)服務(wù)質(zhì)量管理。為應(yīng)對(duì)這些需求,未來(lái)互聯(lián)網(wǎng)的下一代架構(gòu)引入了軟件定義的網(wǎng)絡(luò)這一概念。與現(xiàn)有網(wǎng)絡(luò)的分布式控制模塊不同,這種新型方式的核心是將控制模塊從轉(zhuǎn)發(fā)模塊中分離并集中化。這樣的解耦方式能夠使得計(jì)算機(jī)平臺(tái)上的控制模塊中的軟件部件比傳統(tǒng)網(wǎng)絡(luò)設(shè)備更有效、更具優(yōu)勢(shì)。同時(shí),還可以保護(hù)這些設(shè)備的供應(yīng)商的數(shù)據(jù)和知識(shí)產(chǎn)權(quán)。目前SDN(Software Defined Network,SDN)受到來(lái)自學(xué)術(shù)界和工業(yè)界的密切關(guān)注。本文從不同的角度介紹SDN,包括SDN的使用案例和相關(guān)標(biāo)準(zhǔn)化,集中式SDN模型和分布式SDN模型的優(yōu)缺點(diǎn),以及向混合式SDN模型演變的挑戰(zhàn)和機(jī)遇等。車(chē)聯(lián)網(wǎng)是移動(dòng)互聯(lián)網(wǎng)、物聯(lián)網(wǎng)向業(yè)務(wù)實(shí)質(zhì)和縱深發(fā)展的必經(jīng)之路,是未來(lái)信息通信、環(huán)保、節(jié)能、安全等發(fā)展的融合性技術(shù)。但是由于其自身技術(shù)尚不完善,仍然有很多問(wèn)題需要解決,比如車(chē)聯(lián)網(wǎng)信息交互過(guò)程中的延時(shí)問(wèn)題及成功率問(wèn)題。本文主要關(guān)注的是車(chē)聯(lián)網(wǎng)中的頻譜規(guī)劃和數(shù)據(jù)存儲(chǔ)檢索問(wèn)題。對(duì)于頻譜規(guī)劃,使用軟件定義的方式實(shí)現(xiàn)頻譜感知和頻譜預(yù)知,從而提高數(shù)據(jù)傳輸?shù)某晒β?使用Lucene全文檢索方式,實(shí)現(xiàn)數(shù)據(jù)的高效存儲(chǔ)和檢索。通過(guò)使用軟件定義技術(shù),可以提高車(chē)聯(lián)網(wǎng)的數(shù)據(jù)傳輸效率,降低數(shù)據(jù)傳輸發(fā)生沖突的可能性,從而保證車(chē)聯(lián)網(wǎng)的安全性。并且,本文通過(guò)軟件定義網(wǎng)絡(luò)技術(shù)在模擬環(huán)境中對(duì)其進(jìn)行驗(yàn)證和完善,將SDN技術(shù)應(yīng)用于車(chē)聯(lián)網(wǎng)的信息交互之中,成功地證明了SDN的有效性。最后,本文從各種方向中SDN的發(fā)展和應(yīng)用以及SDN在安全性方面的挑戰(zhàn)和機(jī)遇。通過(guò)不同角度的介紹,從而闡述和分析SDN的發(fā)展和應(yīng)用前景。
[Abstract]:Today, many aspects of the classic architecture of the Internet have become inevitable, also known as Internet ossification, which has become a major obstacle to the development of Internet technology. Many solutions have been proposed, such as improving intra-domain and inter-domain routing to improve network reliability, providing end-to-end links to users, and providing new applications (such as data centers, cloud computing, etc.) Network virtualization) provides dynamic quality of service management for network resources. To meet these needs, the next generation architecture of the future Internet will introduce the concept of software defined network. Different from the existing distributed control module, the core of this new way is to separate and centralize the control module from the forwarding module. This decoupling method can make the software components in the control module on the computer platform more effective and more advantageous than the traditional network equipment. It also protects the data and intellectual property rights of suppliers of these devices. At present, SDN (Software Defined Network (SDN) has received close attention from academia and industry. This paper introduces SDNs from different angles, including the use cases and related standardization of SDN, the advantages and disadvantages of centralized SDN model and distributed SDN model, as well as the challenges and opportunities of evolution to hybrid SDN model. Car networking is the only way for mobile Internet to develop to business essence and depth. It is a fusion technology for the future development of information communication, environmental protection, energy saving, security and so on. However, due to the imperfection of its own technology, there are still many problems to be solved, such as the delay and success rate in the process of information interaction. This paper focuses on spectrum planning and data storage and retrieval in vehicle networking. For spectrum planning, spectrum sensing and spectrum prediction are realized by means of software definition, so as to improve the success rate of data transmission, and Lucene full-text retrieval is used to achieve efficient data storage and retrieval. By using software definition technology, the efficiency of data transmission can be improved, the possibility of data transmission conflict can be reduced, and the security of vehicle networking can be ensured. Furthermore, this paper verifies and perfects the network technology by software definition in the simulation environment, and applies the SDN technology to the information exchange of the vehicle network, which proves the effectiveness of SDN successfully. Finally, the development and application of SDN and the security challenges and opportunities of SDN are discussed. Through the introduction of different angles, the development and application prospect of SDN are expounded and analyzed.
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：U495

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