本文選題：UDP + 可靠性��； 參考：《西安理工大學》2017年碩士論文

【摘要】：隨著計算機與網絡技術的飛速發(fā)展,網絡端之間數據傳輸的可靠性、安全性和公平性等問題直接影響著數據傳輸的效率,而計算機網絡協議則是負責數據傳輸的關鍵,可見,優(yōu)化計算機網絡協議可以從根本上改進數據傳輸的效率。當前,應用最為廣泛的計算機協議就是TCP/IP協議。在TCP/IP協議族中完成數據傳輸與控制的協議主要有TCP和UDP,它們在各自的數據傳輸領域具有自己的優(yōu)點,TCP協議具有較高的可靠性和安全性,UDP協議具有較高的數據傳輸效率的優(yōu)點,但它們都不能集兩者的優(yōu)點滿足于一般的應用場景中。為了在數據傳輸中維持高效率發(fā)送特點的同時也能保證其可靠性,本文對傳輸協議進行分析研究以實現上述數據傳輸的特點。針對數據傳輸高效率和可靠性的需求,本文在UDP協議的基礎上提出了一種基于雙隊列的高效可靠的數據傳輸協議(Deque Efficient and Reliable Protocol Based on UDP,DERUDP)。D-ERUDP協議的核心思想是收發(fā)雙方采用一組雙隊列進行數據的傳輸與確認,其采用隊列數據的分配機制、發(fā)送機制、確認重傳機制和序號檢測機制等有效的保證了數據傳輸的可靠性并且在一定程度上提高了數據傳輸的吞吐量。在擁塞控制策略方面,為保證數據傳輸速率的平滑性并獲取傳輸速率動態(tài)變化的最優(yōu)值,D-ERUDP協議效仿TCP的加性增乘性減的思想,在雙隊列機制的基礎上,采用一種基于隊列的動態(tài)自適應速率(Dynamically and Adaptively Rate Control,DARC)調整的擁塞控制方案,其核心思想是發(fā)送方根據擁塞狀態(tài)動態(tài)的調整隊列數據的發(fā)送速率。在NS2模擬仿真平臺上,對D-ERUDP協議的各種機制進行了實現,并完成了對數據傳輸過程的模擬仿真,驗證了D-ERUDP協議數據傳輸的可靠性和效率。本文將D-ERUDP協議應用于雷達控制系統(tǒng)中,根據該系統(tǒng)的需求,有效解決了項目中顯控終端、中心控制單板機端和定位定向端三者之間的數據傳輸難題,滿足了實時數據傳輸具有高效性和可靠性需求的特點。論文研究成果對高可靠性和高效率數據傳輸方案選擇具有較好的借鑒作用。
[Abstract]:With the rapid development of computer and network technology, the reliability, security and fairness of data transmission between network terminals directly affect the efficiency of data transmission, and the computer network protocol is the key to data transmission. Optimizing the computer network protocol can fundamentally improve the efficiency of data transmission. At present, the most widely used computer protocol is the TCP/IP protocol. TCP and UDP are the main protocols to complete data transmission and control in the family of TCP/IP protocols. They have their own advantages in the field of data transmission. TCP protocols have the advantages of high reliability and high security, and the UDP-protocol has the advantages of high efficiency of data transmission. But they can not set the advantages of both to meet the general application scenario. In order to maintain the characteristics of high efficiency and reliability in data transmission, this paper analyzes and studies the transmission protocol to realize the characteristics of data transmission. In order to meet the demand of high efficiency and reliability of data transmission, In this paper, based on the UDP protocol, an efficient and reliable data transmission protocol based on double queues is proposed. The core idea of the Deque Efficient and Reliable Protocol Based on UDPU DDP .D-ERUDP protocol is that the two transceivers use a set of double queues to transmit and confirm the data. It uses queue data allocation mechanism, transmission mechanism, confirmation retransmission mechanism and serial number detection mechanism to effectively ensure the reliability of data transmission and improve the throughput of data transmission to a certain extent. In the aspect of congestion control strategy, in order to ensure the smoothness of data transmission rate and obtain the optimal value of dynamic change of data rate, D-ERUDP protocol emulate the idea of additive multiplying and decreasing of TCP, based on the double queue mechanism. A congestion control scheme based on queue based dynamic adaptive rate and Adaptively Rate control (DARC) is proposed. The core idea of congestion control is to dynamically adjust the transmission rate of queue data according to the congestion state. On the NS2 simulation platform, various mechanisms of the D-ERUDP protocol are implemented, and the simulation of the data transmission process is completed, which verifies the reliability and efficiency of the D-ERUDP protocol data transmission. In this paper, the D-ERUDP protocol is applied to radar control system. According to the requirement of the system, the data transmission problem between the display terminal, the central control single board computer and the orientation terminal in the project is solved effectively. It meets the demand of high efficiency and reliability for real-time data transmission. The results of this paper can be used for reference in the selection of high reliability and high efficiency data transmission schemes.
【學位授予單位】：西安理工大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TP393.04

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本文編號：1884934