【摘要】：現(xiàn)場可編程門陣列FPGA主頻比較高，能夠滿足高速數(shù)據(jù)處理的要求。高端的FPGA一般都支持幾百兆的頻率，處理信息的能力更強；FPGA主板的運行更加穩(wěn)定，可以處理比較復(fù)雜的問題。 FPGA的應(yīng)用已經(jīng)從過去通信基礎(chǔ)設(shè)備這一非常窄的領(lǐng)域迅速擴展到了今天非常廣泛的應(yīng)用領(lǐng)域。 技術(shù)的進步提高了互聯(lián)網(wǎng)在經(jīng)濟發(fā)展中的重要性，寬帶服務(wù)的可用性、質(zhì)量和競爭力已經(jīng)成為并將繼續(xù)成為許多國家和地區(qū)發(fā)展的關(guān)鍵問題。目前，我國寬帶網(wǎng)絡(luò)發(fā)展的瓶頸在于接入網(wǎng)部分，提高網(wǎng)絡(luò)的帶寬關(guān)鍵在于提高接入網(wǎng)的帶寬。 本文首先介紹了HFC網(wǎng)絡(luò)的特點及其發(fā)展，引出了目前處于研究前沿的HFC接入技術(shù)EPoC和DOCSIS3.1。比起傳統(tǒng)的接入技術(shù)，新一代的HFC接入技術(shù)EPoC和DOCSIS3.1具有更高的吞吐量，，更高的頻譜利用率，是未來幾年接入技術(shù)研究發(fā)展的方向。本文從系統(tǒng)結(jié)構(gòu)上介紹了EPoC和DOCSIS3.1，并分析了它們的MAC層協(xié)議和物理層協(xié)議，討論了DOCSIS3.1MAC層FPGA實現(xiàn)方案，集中研究了DOCSIS3.1MAC層中幾個關(guān)鍵模塊的FPGA實現(xiàn)，并給出了詳細的設(shè)計方案。最后文章介紹了DOCSIS3.1MAC層的測試，并對測試結(jié)果進行了分析。
[Abstract]:Field Programmable Gate Array (FPGA) has high main frequency and can meet the requirement of high speed data processing. High-end FPGA generally supports several hundred megabytes of frequency and can handle more complex problems because of its stronger ability to process information and more stable operation of the motherboard. The application of FPGA has rapidly expanded from the narrow field of communication infrastructure to a very wide range of applications today. Advances in technology have increased the importance of the Internet in economic development. The availability, quality and competitiveness of broadband services have become and will continue to be key issues in the development of many countries and regions. At present, the bottleneck of the development of broadband network in China lies in the access network, and the key to improve the bandwidth of the network is to improve the bandwidth of the access network. This paper first introduces the characteristics and development of HFC network, and leads to the HFC access technologies EPoC and DOCSIS3.1., which are currently in the forefront of research. Compared with the traditional access technologies, the new generation of HFC access technologies, EPoC and DOCSIS3.1, have higher throughput and higher spectral efficiency, which is the direction of research and development of access technology in the next few years. This paper introduces EPoC and DOCSIS3.1, from the system structure, analyzes their MAC layer protocols and physical layer protocols, discusses the implementation scheme of DOCSIS3.1MAC layer FPGA, focuses on the FPGA implementation of several key modules in the DOCSIS3.1MAC layer, and gives a detailed design scheme. Finally, the test of DOCSIS3.1MAC layer is introduced, and the test results are analyzed.
【學位授予單位】：華中科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TN915.6;TN791

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