【摘要】：本文研究的內(nèi)容是973項(xiàng)目《信息服務(wù)的模型與機(jī)理研究》的“面向公共信息服務(wù)的網(wǎng)絡(luò)協(xié)同與主動(dòng)服務(wù)”專題。我們從網(wǎng)絡(luò)特性入手,在充分總結(jié)和分析各類融合網(wǎng)絡(luò)的特點(diǎn)及其工作機(jī)理的基礎(chǔ)上,針對(duì)互聯(lián)網(wǎng)交互性強(qiáng)和廣播網(wǎng)高帶寬、覆蓋面廣的優(yōu)點(diǎn),提出將二者進(jìn)行融合,彌補(bǔ)互聯(lián)網(wǎng)訪問(wèn)所呈現(xiàn)的冪律分布特性和廣播網(wǎng)的單向性所帶來(lái)的劣勢(shì),互補(bǔ)工作。提出自適應(yīng)互補(bǔ)機(jī)制,并給出融合網(wǎng)絡(luò)下組播過(guò)程中輪播次數(shù)期望的解析解,從多方面感知外在環(huán)境變化的特征,使用戶能夠得到良好的信息服務(wù)。 為證明以上原理和機(jī)制的可行性,設(shè)計(jì)并實(shí)現(xiàn)了一套基于融合網(wǎng)絡(luò)播存機(jī)制的數(shù)據(jù)發(fā)布系統(tǒng),實(shí)現(xiàn)了單向信道中大文件的發(fā)布、內(nèi)容播出控制和自適應(yīng)互補(bǔ)機(jī)制等關(guān)鍵技術(shù)。最后對(duì)原型系統(tǒng)進(jìn)行了理論分析和驗(yàn)證,結(jié)果表明,該系統(tǒng)在大規(guī)模數(shù)據(jù)發(fā)布方面可靠性較強(qiáng),傳輸效率較高。 本文對(duì)融合網(wǎng)絡(luò)的工作機(jī)制和相關(guān)技術(shù)進(jìn)行分析和歸納,為今后研究數(shù)據(jù)在融合網(wǎng)絡(luò)下的傳輸規(guī)律和性能提供了理論依據(jù)；提出網(wǎng)絡(luò)融合情況下的數(shù)據(jù)發(fā)布機(jī)制、自適應(yīng)互補(bǔ)機(jī)制等,能夠高效地進(jìn)行大規(guī)模數(shù)據(jù)分發(fā)；并在此基礎(chǔ)上實(shí)現(xiàn)基于融合網(wǎng)絡(luò)播存機(jī)制的數(shù)據(jù)交換系統(tǒng),可以提高公共信息服務(wù)的服務(wù)質(zhì)量。 此外,可將本文研究的基于融合網(wǎng)絡(luò)播存機(jī)制的數(shù)據(jù)發(fā)布架構(gòu),在內(nèi)容定位方面進(jìn)行擴(kuò)展,形成同時(shí)具有內(nèi)容標(biāo)簽和IP地址雙重定位機(jī)制的傳輸模式,從而更好地提供公共信息服務(wù)。
[Abstract]:The research content of this paper is "Network collaboration and active Service for Public Information Service" of 973 Project "Model and Mechanism Research of Information Service". On the basis of summarizing and analyzing the characteristics and working mechanism of all kinds of convergent networks, we put forward to combine them in view of the strong interactivity of the Internet and the advantages of high bandwidth and wide coverage of broadcasting networks. It makes up for the disadvantage of power law distribution of Internet access and the unidirectionality of broadcasting network. An adaptive complementary mechanism is proposed, and an analytical solution to the expectation of the number of rotations in the multicast process under the fusion network is presented, which can perceive the characteristics of the external environment from many aspects, so that the users can get good information services. In order to prove the feasibility of the above principles and mechanisms, a data publishing system based on integrated network broadcast storage mechanism is designed and implemented. The key technologies such as the release of large files in one-way channels, content broadcast control and adaptive complementary mechanism are realized. Finally, the prototype system is theoretically analyzed and verified. The results show that the system is reliable and efficient in large-scale data release. In this paper, the working mechanism and related technologies of the fusion network are analyzed and summarized, which provides a theoretical basis for the future research on the transmission rules and performance of the data in the fusion network, and puts forward the data release mechanism under the condition of network convergence. The adaptive complementary mechanism can efficiently distribute large-scale data, and on this basis, a data exchange system based on integrated network broadcast and storage mechanism can be implemented, which can improve the quality of service of public information services. In addition, the data publishing architecture based on the integrated network broadcast and storage mechanism studied in this paper can be extended in content location to form a transmission mode with dual location mechanism of content label and IP address at the same time. In order to better provide public information services.
【學(xué)位授予單位】：中國(guó)工程物理研究院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TP311.13

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