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

【摘要】：隨著計(jì)算機(jī)與網(wǎng)絡(luò)技術(shù)的飛速發(fā)展,網(wǎng)絡(luò)端之間數(shù)據(jù)傳輸?shù)目煽啃浴踩院凸叫缘葐?wèn)題直接影響著數(shù)據(jù)傳輸?shù)男?而計(jì)算機(jī)網(wǎng)絡(luò)協(xié)議則是負(fù)責(zé)數(shù)據(jù)傳輸?shù)年P(guān)鍵,可見,優(yōu)化計(jì)算機(jī)網(wǎng)絡(luò)協(xié)議可以從根本上改進(jìn)數(shù)據(jù)傳輸?shù)男�。�?dāng)前,應(yīng)用最為廣泛的計(jì)算機(jī)協(xié)議就是TCP/IP協(xié)議。在TCP/IP協(xié)議族中完成數(shù)據(jù)傳輸與控制的協(xié)議主要有TCP和UDP,它們?cè)诟髯缘臄?shù)據(jù)傳輸領(lǐng)域具有自己的優(yōu)點(diǎn),TCP協(xié)議具有較高的可靠性和安全性,UDP協(xié)議具有較高的數(shù)據(jù)傳輸效率的優(yōu)點(diǎn),但它們都不能集兩者的優(yōu)點(diǎn)滿足于一般的應(yīng)用場(chǎng)景中。為了在數(shù)據(jù)傳輸中維持高效率發(fā)送特點(diǎn)的同時(shí)也能保證其可靠性,本文對(duì)傳輸協(xié)議進(jìn)行分析研究以實(shí)現(xiàn)上述數(shù)據(jù)傳輸?shù)奶攸c(diǎn)。針對(duì)數(shù)據(jù)傳輸高效率和可靠性的需求,本文在UDP協(xié)議的基礎(chǔ)上提出了一種基于雙隊(duì)列的高效可靠的數(shù)據(jù)傳輸協(xié)議(Deque Efficient and Reliable Protocol Based on UDP,DERUDP)。D-ERUDP協(xié)議的核心思想是收發(fā)雙方采用一組雙隊(duì)列進(jìn)行數(shù)據(jù)的傳輸與確認(rèn),其采用隊(duì)列數(shù)據(jù)的分配機(jī)制、發(fā)送機(jī)制、確認(rèn)重傳機(jī)制和序號(hào)檢測(cè)機(jī)制等有效的保證了數(shù)據(jù)傳輸?shù)目煽啃圆⑶以谝欢ǔ潭壬咸岣吡藬?shù)據(jù)傳輸?shù)耐掏铝俊Ｔ趽砣刂撇呗苑矫?為保證數(shù)據(jù)傳輸速率的平滑性并獲取傳輸速率動(dòng)態(tài)變化的最優(yōu)值,D-ERUDP協(xié)議效仿TCP的加性增乘性減的思想,在雙隊(duì)列機(jī)制的基礎(chǔ)上,采用一種基于隊(duì)列的動(dòng)態(tài)自適應(yīng)速率(Dynamically and Adaptively Rate Control,DARC)調(diào)整的擁塞控制方案,其核心思想是發(fā)送方根據(jù)擁塞狀態(tài)動(dòng)態(tài)的調(diào)整隊(duì)列數(shù)據(jù)的發(fā)送速率。在NS2模擬仿真平臺(tái)上,對(duì)D-ERUDP協(xié)議的各種機(jī)制進(jìn)行了實(shí)現(xiàn),并完成了對(duì)數(shù)據(jù)傳輸過(guò)程的模擬仿真,驗(yàn)證了D-ERUDP協(xié)議數(shù)據(jù)傳輸?shù)目煽啃院托省１疚膶-ERUDP協(xié)議應(yīng)用于雷達(dá)控制系統(tǒng)中,根據(jù)該系統(tǒng)的需求,有效解決了項(xiàng)目中顯控終端、中心控制單板機(jī)端和定位定向端三者之間的數(shù)據(jù)傳輸難題,滿足了實(shí)時(shí)數(shù)據(jù)傳輸具有高效性和可靠性需求的特點(diǎn)。論文研究成果對(duì)高可靠性和高效率數(shù)據(jù)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(xué)位授予單位】：西安理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP393.04

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